{"abstract":"A flight planned to land at exactly the maximum landing weight is reported MLW.","category":"Aviation weight and balance","checks":10,"contract":"Input {'tow','tocg','burn_gal','fuel_arm','density','mlw','env':[fwd,aft]}. Burned fuel weight = gallons*density removed at the fuel arm. Status 'MLW' if landing weight exceeds MLW (checked first), 'CG' if landing CG outside the inclusive envelope, else 'OK'. Return [LW r1, LCG r2, status].","evaluation_group":"w2-aviation-weight-balance-landing-cg-after-burn","failed_approach":"Rounding landing weight before comparing lets fractional exceedances under half a pound pass.","family":"w2-aviation-weight-balance-landing-cg-after-burn-mlw-inclusive","id":"FA-66056","implementations":{"attempt":{"sha256":"0e58f0535b30b60c2ad444dbb5fb1cac9166f8dacb108e6f0c96053b18c76b34","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    dens = x['density']\n    bw = x['burn_gal'] * dens\n    lw = x['tow'] - bw\n    lm = x['tow'] * x['tocg'] - bw * x['fuel_arm']\n    lcg = lm / lw\n    fwd, aft = x['env']\n    if round(lw) > x['mlw']: status = 'MLW'\n    elif lcg < fwd or lcg > aft: status = 'CG'\n    else: status = 'OK'\n    return [round(lw, 1), round(lcg, 2), status]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 26.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2344.0, 41.6, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.2, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2518.8, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.65, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.21, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.9]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 61.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4591.3, 141.29, 'OK']], ['sampled case 1', {'tow': 3210.0, 'tocg': 43.86, 'burn_gal': 48.2, 'fuel_arm': 50.2, 'density': 6.7, 'mlw': 3144.0, 'env': [37.4, 44.6]}, [2887.1, 43.15, 'OK']], ['sampled case 2', {'tow': 2319.0, 'tocg': 45.94, 'burn_gal': 37.7, 'fuel_arm': 46.1, 'density': 6.7, 'mlw': 2223.0, 'env': [35.6, 44.7]}, [2066.4, 45.92, 'CG']], ['sampled case 3', {'tow': 2538.0, 'tocg': 42.69, 'burn_gal': 42.3, 'fuel_arm': 39.8, 'density': 6.7, 'mlw': 2436.0, 'env': [38.5, 45.3]}, [2254.6, 43.05, 'OK']], ['regression: maximum landing weight comparison', {'tow': 2335.0, 'tocg': 43.12, 'burn_gal': 21.8, 'fuel_arm': 46.4, 'density': 6.0, 'mlw': 2204.0, 'env': [36.7, 43.1]}, [2204.2, 42.93, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 27.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2338.0, 41.58, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.4, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2517.6, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.7, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.27, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.8]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 62.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4584.6, 141.28, 'OK']], ['sampled case 1', {'tow': 2616.0, 'tocg': 44.14, 'burn_gal': 50.6, 'fuel_arm': 35.7, 'density': 6.0, 'mlw': 2515.0, 'env': [35.7, 46.3]}, [2312.4, 45.25, 'OK']], ['sampled case 2', {'tow': 3505.0, 'tocg': 45.73, 'burn_gal': 51.8, 'fuel_arm': 36.9, 'density': 6.7, 'mlw': 3402.0, 'env': [38.6, 44.7]}, [3157.9, 46.7, 'CG']], ['sampled case 3', {'tow': 4317.0, 'tocg': 45.35, 'burn_gal': 46.0, 'fuel_arm': 30.4, 'density': 6.7, 'mlw': 3966.0, 'env': [37.2, 44.7]}, [4008.8, 46.5, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 4939.0, 'tocg': 44.23, 'burn_gal': 27.0, 'fuel_arm': 57.7, 'density': 6.7, 'mlw': 4758.0, 'env': [39.0, 45.7]}, [4758.1, 43.72, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 28.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2332.0, 41.57, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.6, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2516.4, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.75, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.32, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.7]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 63.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4577.9, 141.26, 'OK']], ['sampled case 1', {'tow': 3241.0, 'tocg': 42.19, 'burn_gal': 26.4, 'fuel_arm': 41.7, 'density': 6.7, 'mlw': 2992.0, 'env': [38.5, 45.7]}, [3064.1, 42.22, 'MLW']], ['sampled case 2', {'tow': 2273.0, 'tocg': 38.95, 'burn_gal': 26.8, 'fuel_arm': 59.5, 'density': 6.7, 'mlw': 2176.0, 'env': [38.3, 44.8]}, [2093.4, 37.19, 'CG']], ['sampled case 3', {'tow': 4321.0, 'tocg': 45.0, 'burn_gal': 28.2, 'fuel_arm': 37.5, 'density': 6.7, 'mlw': 4074.0, 'env': [38.0, 44.9]}, [4132.1, 45.34, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 5111.0, 'tocg': 44.01, 'burn_gal': 7.1, 'fuel_arm': 43.5, 'density': 6.0, 'mlw': 5068.0, 'env': [37.5, 43.8]}, [5068.4, 44.01, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 29.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2326.0, 41.55, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.8, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2515.2, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.800000000000004, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.38, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.6]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 64.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4571.2, 141.25, 'OK']], ['sampled case 1', {'tow': 2016.0, 'tocg': 40.79, 'burn_gal': 78.4, 'fuel_arm': 52.8, 'density': 6.0, 'mlw': 1662.0, 'env': [35.1, 46.3]}, [1545.6, 37.13, 'OK']], ['sampled case 2', {'tow': 5687.0, 'tocg': 39.23, 'burn_gal': 51.9, 'fuel_arm': 54.5, 'density': 6.7, 'mlw': 5345.0, 'env': [37.9, 46.1]}, [5339.3, 38.24, 'OK']], ['sampled case 3', {'tow': 5347.0, 'tocg': 40.15, 'burn_gal': 5.1, 'fuel_arm': 42.2, 'density': 6.7, 'mlw': 5370.0, 'env': [35.1, 43.8]}, [5312.8, 40.14, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3719.0, 'tocg': 42.91, 'burn_gal': 46.1, 'fuel_arm': 43.7, 'density': 6.0, 'mlw': 3442.0, 'env': [36.8, 43.1]}, [3442.4, 42.85, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 30.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2320.0, 41.53, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 6.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2514.0, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.85, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.43, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.5]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 65.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4564.5, 141.24, 'OK']], ['sampled case 1', {'tow': 4773.0, 'tocg': 38.16, 'burn_gal': 54.7, 'fuel_arm': 51.7, 'density': 6.0, 'mlw': 4762.0, 'env': [38.1, 45.8]}, [4444.8, 37.16, 'CG']], ['sampled case 2', {'tow': 5036.0, 'tocg': 43.65, 'burn_gal': 50.5, 'fuel_arm': 57.4, 'density': 6.7, 'mlw': 4986.0, 'env': [39.0, 46.7]}, [4697.6, 42.66, 'OK']], ['sampled case 3', {'tow': 4947.0, 'tocg': 43.42, 'burn_gal': 41.6, 'fuel_arm': 57.9, 'density': 6.7, 'mlw': 4824.0, 'env': [39.6, 44.2]}, [4668.3, 42.56, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3472.0, 'tocg': 38.61, 'burn_gal': 58.6, 'fuel_arm': 32.6, 'density': 6.7, 'mlw': 3079.0, 'env': [37.1, 45.7]}, [3079.4, 39.38, 'MLW']]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"1cee1dbbb740b286fbf29fab645c2ede4d80a71e7df70269fa3e7594d4e38654","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    dens = x['density']\n    bw = x['burn_gal'] * dens\n    lw = x['tow'] - bw\n    lm = x['tow'] * x['tocg'] - bw * x['fuel_arm']\n    lcg = lm / lw\n    fwd, aft = x['env']\n    if lw >= x['mlw']: status = 'MLW'\n    elif lcg < fwd or lcg > aft: status = 'CG'\n    else: status = 'OK'\n    return [round(lw, 1), round(lcg, 2), status]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 26.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2344.0, 41.6, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.2, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2518.8, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.65, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.21, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.9]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 61.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4591.3, 141.29, 'OK']], ['sampled case 1', {'tow': 3210.0, 'tocg': 43.86, 'burn_gal': 48.2, 'fuel_arm': 50.2, 'density': 6.7, 'mlw': 3144.0, 'env': [37.4, 44.6]}, [2887.1, 43.15, 'OK']], ['sampled case 2', {'tow': 2319.0, 'tocg': 45.94, 'burn_gal': 37.7, 'fuel_arm': 46.1, 'density': 6.7, 'mlw': 2223.0, 'env': [35.6, 44.7]}, [2066.4, 45.92, 'CG']], ['sampled case 3', {'tow': 2538.0, 'tocg': 42.69, 'burn_gal': 42.3, 'fuel_arm': 39.8, 'density': 6.7, 'mlw': 2436.0, 'env': [38.5, 45.3]}, [2254.6, 43.05, 'OK']], ['regression: maximum landing weight comparison', {'tow': 2335.0, 'tocg': 43.12, 'burn_gal': 21.8, 'fuel_arm': 46.4, 'density': 6.0, 'mlw': 2204.0, 'env': [36.7, 43.1]}, [2204.2, 42.93, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 27.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2338.0, 41.58, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.4, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2517.6, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.7, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.27, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.8]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 62.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4584.6, 141.28, 'OK']], ['sampled case 1', {'tow': 2616.0, 'tocg': 44.14, 'burn_gal': 50.6, 'fuel_arm': 35.7, 'density': 6.0, 'mlw': 2515.0, 'env': [35.7, 46.3]}, [2312.4, 45.25, 'OK']], ['sampled case 2', {'tow': 3505.0, 'tocg': 45.73, 'burn_gal': 51.8, 'fuel_arm': 36.9, 'density': 6.7, 'mlw': 3402.0, 'env': [38.6, 44.7]}, [3157.9, 46.7, 'CG']], ['sampled case 3', {'tow': 4317.0, 'tocg': 45.35, 'burn_gal': 46.0, 'fuel_arm': 30.4, 'density': 6.7, 'mlw': 3966.0, 'env': [37.2, 44.7]}, [4008.8, 46.5, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 4939.0, 'tocg': 44.23, 'burn_gal': 27.0, 'fuel_arm': 57.7, 'density': 6.7, 'mlw': 4758.0, 'env': [39.0, 45.7]}, [4758.1, 43.72, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 28.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2332.0, 41.57, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.6, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2516.4, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.75, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.32, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.7]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 63.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4577.9, 141.26, 'OK']], ['sampled case 1', {'tow': 3241.0, 'tocg': 42.19, 'burn_gal': 26.4, 'fuel_arm': 41.7, 'density': 6.7, 'mlw': 2992.0, 'env': [38.5, 45.7]}, [3064.1, 42.22, 'MLW']], ['sampled case 2', {'tow': 2273.0, 'tocg': 38.95, 'burn_gal': 26.8, 'fuel_arm': 59.5, 'density': 6.7, 'mlw': 2176.0, 'env': [38.3, 44.8]}, [2093.4, 37.19, 'CG']], ['sampled case 3', {'tow': 4321.0, 'tocg': 45.0, 'burn_gal': 28.2, 'fuel_arm': 37.5, 'density': 6.7, 'mlw': 4074.0, 'env': [38.0, 44.9]}, [4132.1, 45.34, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 5111.0, 'tocg': 44.01, 'burn_gal': 7.1, 'fuel_arm': 43.5, 'density': 6.0, 'mlw': 5068.0, 'env': [37.5, 43.8]}, [5068.4, 44.01, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 29.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2326.0, 41.55, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.8, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2515.2, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.800000000000004, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.38, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.6]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 64.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4571.2, 141.25, 'OK']], ['sampled case 1', {'tow': 2016.0, 'tocg': 40.79, 'burn_gal': 78.4, 'fuel_arm': 52.8, 'density': 6.0, 'mlw': 1662.0, 'env': [35.1, 46.3]}, [1545.6, 37.13, 'OK']], ['sampled case 2', {'tow': 5687.0, 'tocg': 39.23, 'burn_gal': 51.9, 'fuel_arm': 54.5, 'density': 6.7, 'mlw': 5345.0, 'env': [37.9, 46.1]}, [5339.3, 38.24, 'OK']], ['sampled case 3', {'tow': 5347.0, 'tocg': 40.15, 'burn_gal': 5.1, 'fuel_arm': 42.2, 'density': 6.7, 'mlw': 5370.0, 'env': [35.1, 43.8]}, [5312.8, 40.14, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3719.0, 'tocg': 42.91, 'burn_gal': 46.1, 'fuel_arm': 43.7, 'density': 6.0, 'mlw': 3442.0, 'env': [36.8, 43.1]}, [3442.4, 42.85, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 30.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2320.0, 41.53, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 6.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2514.0, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.85, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.43, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.5]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 65.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4564.5, 141.24, 'OK']], ['sampled case 1', {'tow': 4773.0, 'tocg': 38.16, 'burn_gal': 54.7, 'fuel_arm': 51.7, 'density': 6.0, 'mlw': 4762.0, 'env': [38.1, 45.8]}, [4444.8, 37.16, 'CG']], ['sampled case 2', {'tow': 5036.0, 'tocg': 43.65, 'burn_gal': 50.5, 'fuel_arm': 57.4, 'density': 6.7, 'mlw': 4986.0, 'env': [39.0, 46.7]}, [4697.6, 42.66, 'OK']], ['sampled case 3', {'tow': 4947.0, 'tocg': 43.42, 'burn_gal': 41.6, 'fuel_arm': 57.9, 'density': 6.7, 'mlw': 4824.0, 'env': [39.6, 44.2]}, [4668.3, 42.56, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3472.0, 'tocg': 38.61, 'burn_gal': 58.6, 'fuel_arm': 32.6, 'density': 6.7, 'mlw': 3079.0, 'env': [37.1, 45.7]}, [3079.4, 39.38, 'MLW']]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"b8ee481b97220f7a49400300daecfbb70feb85f56e17033de15e34a2ad8ec858","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(x):\n    dens = x['density']\n    bw = x['burn_gal'] * dens\n    lw = x['tow'] - bw\n    lm = x['tow'] * x['tocg'] - bw * x['fuel_arm']\n    lcg = lm / lw\n    fwd, aft = x['env']\n    if lw > x['mlw']: status = 'MLW'\n    elif lcg < fwd or lcg > aft: status = 'CG'\n    else: status = 'OK'\n    return [round(lw, 1), round(lcg, 2), status]\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = [[['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 26.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2344.0, 41.6, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.2, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2518.8, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.65, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.21, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.9]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 61.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4591.3, 141.29, 'OK']], ['sampled case 1', {'tow': 3210.0, 'tocg': 43.86, 'burn_gal': 48.2, 'fuel_arm': 50.2, 'density': 6.7, 'mlw': 3144.0, 'env': [37.4, 44.6]}, [2887.1, 43.15, 'OK']], ['sampled case 2', {'tow': 2319.0, 'tocg': 45.94, 'burn_gal': 37.7, 'fuel_arm': 46.1, 'density': 6.7, 'mlw': 2223.0, 'env': [35.6, 44.7]}, [2066.4, 45.92, 'CG']], ['sampled case 3', {'tow': 2538.0, 'tocg': 42.69, 'burn_gal': 42.3, 'fuel_arm': 39.8, 'density': 6.7, 'mlw': 2436.0, 'env': [38.5, 45.3]}, [2254.6, 43.05, 'OK']], ['regression: maximum landing weight comparison', {'tow': 2335.0, 'tocg': 43.12, 'burn_gal': 21.8, 'fuel_arm': 46.4, 'density': 6.0, 'mlw': 2204.0, 'env': [36.7, 43.1]}, [2204.2, 42.93, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 27.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2338.0, 41.58, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.4, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2517.6, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.7, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.27, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.8]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 62.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4584.6, 141.28, 'OK']], ['sampled case 1', {'tow': 2616.0, 'tocg': 44.14, 'burn_gal': 50.6, 'fuel_arm': 35.7, 'density': 6.0, 'mlw': 2515.0, 'env': [35.7, 46.3]}, [2312.4, 45.25, 'OK']], ['sampled case 2', {'tow': 3505.0, 'tocg': 45.73, 'burn_gal': 51.8, 'fuel_arm': 36.9, 'density': 6.7, 'mlw': 3402.0, 'env': [38.6, 44.7]}, [3157.9, 46.7, 'CG']], ['sampled case 3', {'tow': 4317.0, 'tocg': 45.35, 'burn_gal': 46.0, 'fuel_arm': 30.4, 'density': 6.7, 'mlw': 3966.0, 'env': [37.2, 44.7]}, [4008.8, 46.5, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 4939.0, 'tocg': 44.23, 'burn_gal': 27.0, 'fuel_arm': 57.7, 'density': 6.7, 'mlw': 4758.0, 'env': [39.0, 45.7]}, [4758.1, 43.72, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 28.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2332.0, 41.57, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.6, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2516.4, 40.91, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.75, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.32, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.7]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 63.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4577.9, 141.26, 'OK']], ['sampled case 1', {'tow': 3241.0, 'tocg': 42.19, 'burn_gal': 26.4, 'fuel_arm': 41.7, 'density': 6.7, 'mlw': 2992.0, 'env': [38.5, 45.7]}, [3064.1, 42.22, 'MLW']], ['sampled case 2', {'tow': 2273.0, 'tocg': 38.95, 'burn_gal': 26.8, 'fuel_arm': 59.5, 'density': 6.7, 'mlw': 2176.0, 'env': [38.3, 44.8]}, [2093.4, 37.19, 'CG']], ['sampled case 3', {'tow': 4321.0, 'tocg': 45.0, 'burn_gal': 28.2, 'fuel_arm': 37.5, 'density': 6.7, 'mlw': 4074.0, 'env': [38.0, 44.9]}, [4132.1, 45.34, 'MLW']], ['regression: maximum landing weight comparison', {'tow': 5111.0, 'tocg': 44.01, 'burn_gal': 7.1, 'fuel_arm': 43.5, 'density': 6.0, 'mlw': 5068.0, 'env': [37.5, 43.8]}, [5068.4, 44.01, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 29.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2326.0, 41.55, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 5.8, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2515.2, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.800000000000004, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.38, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.6]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 64.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4571.2, 141.25, 'OK']], ['sampled case 1', {'tow': 2016.0, 'tocg': 40.79, 'burn_gal': 78.4, 'fuel_arm': 52.8, 'density': 6.0, 'mlw': 1662.0, 'env': [35.1, 46.3]}, [1545.6, 37.13, 'OK']], ['sampled case 2', {'tow': 5687.0, 'tocg': 39.23, 'burn_gal': 51.9, 'fuel_arm': 54.5, 'density': 6.7, 'mlw': 5345.0, 'env': [37.9, 46.1]}, [5339.3, 38.24, 'OK']], ['sampled case 3', {'tow': 5347.0, 'tocg': 40.15, 'burn_gal': 5.1, 'fuel_arm': 42.2, 'density': 6.7, 'mlw': 5370.0, 'env': [35.1, 43.8]}, [5312.8, 40.14, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3719.0, 'tocg': 42.91, 'burn_gal': 46.1, 'fuel_arm': 43.7, 'density': 6.0, 'mlw': 3442.0, 'env': [36.8, 43.1]}, [3442.4, 42.85, 'MLW']]], [['normal trip', {'tow': 2500.0, 'tocg': 42.0, 'burn_gal': 30.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2320.0, 41.53, 'OK']], ['landing overweight', {'tow': 2550.0, 'tocg': 41.0, 'burn_gal': 6.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2514.0, 40.9, 'MLW']], ['exactly max landing', {'tow': 2510.0, 'tocg': 41.0, 'burn_gal': 10.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2450.0, 40.83, 'OK']], ['burn moves CG forward out', {'tow': 2300.0, 'tocg': 35.85, 'burn_gal': 40.0, 'fuel_arm': 48.0, 'density': 6.0, 'mlw': 2450.0, 'env': [35.0, 47.3]}, [2060.0, 34.43, 'CG']], ['forward tank burn moves CG aft', {'tow': 5200.0, 'tocg': 147.0, 'burn_gal': 90.0, 'fuel_arm': 120.0, 'density': 6.7, 'mlw': 5000.0, 'env': [138.0, 147.5]}, [4597.0, 150.54, 'CG']], ['jet fuel density', {'tow': 5000.0, 'tocg': 142.0, 'burn_gal': 65.0, 'fuel_arm': 150.0, 'density': 6.7, 'mlw': 4800.0, 'env': [138.0, 148.0]}, [4564.5, 141.24, 'OK']], ['sampled case 1', {'tow': 4773.0, 'tocg': 38.16, 'burn_gal': 54.7, 'fuel_arm': 51.7, 'density': 6.0, 'mlw': 4762.0, 'env': [38.1, 45.8]}, [4444.8, 37.16, 'CG']], ['sampled case 2', {'tow': 5036.0, 'tocg': 43.65, 'burn_gal': 50.5, 'fuel_arm': 57.4, 'density': 6.7, 'mlw': 4986.0, 'env': [39.0, 46.7]}, [4697.6, 42.66, 'OK']], ['sampled case 3', {'tow': 4947.0, 'tocg': 43.42, 'burn_gal': 41.6, 'fuel_arm': 57.9, 'density': 6.7, 'mlw': 4824.0, 'env': [39.6, 44.2]}, [4668.3, 42.56, 'OK']], ['regression: maximum landing weight comparison', {'tow': 3472.0, 'tocg': 38.61, 'burn_gal': 58.6, 'fuel_arm': 32.6, 'density': 6.7, 'mlw': 3079.0, 'env': [37.1, 45.7]}, [3079.4, 39.38, 'MLW']]]]\nfor label, args, expected in fixtures[N-1]:\n    check(label, solve(args), expected)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":"A deterministic toy loading model with stipulated constants; it is not an approved aircraft flight manual procedure and makes no claim of regulatory conformance. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"w2-aviation-weight-balance-landing-cg-after-burn-mlw-inclusive","generated_at":"2026-09-29T14:47:39.758163+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Landing CG differs from takeoff CG because fuel is removed at the tank arm; landing weight has its own structural limit.","repair":"Flag only landing weights strictly above MLW.","root_cause":"The MLW comparison is inclusive although the limit itself is permitted.","sha256":"6ea57690c356a626d60359d980cea11b13d9b5df38f6c457f194d4e9a3ecf670","title":"Landing exactly at MLW flagged as overweight · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":42.505,"exit_code":1,"observations":[{"actual":[2344.0,41.6,"OK"],"check":"normal trip","expected":[2344.0,41.6,"OK"],"passed":true},{"actual":[2518.8,40.91,"MLW"],"check":"landing overweight","expected":[2518.8,40.91,"MLW"],"passed":true},{"actual":[2450.0,40.83,"OK"],"check":"exactly max landing","expected":[2450.0,40.83,"OK"],"passed":true},{"actual":[2060.0,34.21,"CG"],"check":"burn moves CG forward out","expected":[2060.0,34.21,"CG"],"passed":true},{"actual":[4597.0,150.54,"CG"],"check":"forward tank burn moves CG aft","expected":[4597.0,150.54,"CG"],"passed":true},{"actual":[4591.3,141.29,"OK"],"check":"jet fuel density","expected":[4591.3,141.29,"OK"],"passed":true},{"actual":[2887.1,43.15,"OK"],"check":"sampled case 1","expected":[2887.1,43.15,"OK"],"passed":true},{"actual":[2066.4,45.92,"CG"],"check":"sampled case 2","expected":[2066.4,45.92,"CG"],"passed":true},{"actual":[2254.6,43.05,"OK"],"check":"sampled case 3","expected":[2254.6,43.05,"OK"],"passed":true},{"actual":[2204.2,42.93,"OK"],"check":"regression: maximum landing weight comparison","expected":[2204.2,42.93,"MLW"],"passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"normal trip\", \"actual\": [2344.0, 41.6, \"OK\"], \"expected\": [2344.0, 41.6, \"OK\"], \"passed\": true}, {\"check\": \"landing overweight\", \"actual\": [2518.8, 40.91, \"MLW\"], \"expected\": [2518.8, 40.91, \"MLW\"], \"passed\": true}, {\"check\": \"exactly max landing\", \"actual\": [2450.0, 40.83, \"OK\"], \"expected\": [2450.0, 40.83, \"OK\"], \"passed\": true}, {\"check\": \"burn moves CG forward out\", \"actual\": [2060.0, 34.21, \"CG\"], \"expected\": [2060.0, 34.21, \"CG\"], \"passed\": true}, {\"check\": \"forward tank burn moves CG aft\", \"actual\": [4597.0, 150.54, \"CG\"], \"expected\": [4597.0, 150.54, \"CG\"], \"passed\": true}, {\"check\": \"jet fuel density\", \"actual\": [4591.3, 141.29, \"OK\"], \"expected\": [4591.3, 141.29, \"OK\"], \"passed\": true}, {\"check\": \"sampled case 1\", \"actual\": [2887.1, 43.15, \"OK\"], \"expected\": [2887.1, 43.15, \"OK\"], \"passed\": true}, {\"check\": \"sampled case 2\", \"actual\": [2066.4, 45.92, \"CG\"], \"expected\": [2066.4, 45.92, \"CG\"], \"passed\": true}, {\"check\": \"sampled case 3\", \"actual\": [2254.6, 43.05, \"OK\"], \"expected\": [2254.6, 43.05, \"OK\"], \"passed\": true}, {\"check\": \"regression: maximum landing weight comparison\", \"actual\": [2204.2, 42.93, \"OK\"], \"expected\": [2204.2, 42.93, \"MLW\"], \"passed\": false}], \"passed\": false}\n"},"broken":{"elapsed_ms":41.252,"exit_code":1,"observations":[{"actual":[2344.0,41.6,"OK"],"check":"normal trip","expected":[2344.0,41.6,"OK"],"passed":true},{"actual":[2518.8,40.91,"MLW"],"check":"landing overweight","expected":[2518.8,40.91,"MLW"],"passed":true},{"actual":[2450.0,40.83,"MLW"],"check":"exactly max 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