Ntsb/aar-79-01 - AirDisaster.Com

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I: 1.5 Personnel Information - 4 - The flight crewmembers, the flight attendants, and the inflight supervisor were all properly certificated and trained for the flight. (See Appendix B.) A Continental Air Lines, Boeing 727 captain was on board the aircraft as a passenger. He was seated in the first-class section of the cabin. 1.6 Aircraft Information The aircraft was certificated and maintained in accordance with Federal Aviation Administration (FAA) requirements. The gross weight and c.g. were within prescribed limits for takeoff. At the time of the accident, about 120,000 lbs of jet A-1 fuel was on board. (See Appendix C.) Takeoff computations for the flight showed a takeoff weight of 429,700 lbs--430,000 lbs was the maximum allowable for takeoff. The takeoff c.g. was 21.5 percent mean aerodynamic chord (MAC). The takeoff data also showed a computed V1 speed of 156 kns, a VR speed of 161 kns, and a V2 speed of 170 kns. The wheel, brake, and tire positions on the DC-10-10 main landing gear are designated by number; from left to right, beginning with the forward tires. (See figure 1.) Nos. 1 and 2 are the forward ! positions on the left main gear, Nos. 3 and 4 are the forward postions on the right main gear. Nos. 5 and 6 are the aft positions on the left main gear, and Nos. 7 and 8 are the aft positions on the right main gear. The tires in positions 4, 6, and 8 were on their first retread cycle; those in positions 3 and 5 were on their second retread cycle; and those in positions 1, 2, and 7 were on their third retread cycle. It was the company's policy to replace a tire after its third retread cycle. / The tire pressures had been checked immediately after landing from a previous flight on the morning of March 1, about 3 hours before the accident. These pressure readings were: No. 1 - 189 psi, No. 2 - 185 psi, NO. 3 - 188 psi, N0.4 - 185 psi, NO. 5 - 186 psi, NO. 6 - 187 psi, No. 7 - 192 psi, and No. 8 - 190 psi. The company required a normal tire pressure of 185 psi; however, their General Maintenance Manual indicates that a normal tire inflation range is between 182 psi to 188 psi. - I. 7 Meteorological Information - A large low-pressure system had moved on shore over California with the center of the low pressure located about 70 mi west of the Los Angeles International Airport. The weather associated with this F sy; so1 mot 17 Los of 1
he ! of ,f f 5, ,d is !f t I i re - .8 7 ,si ornia S r- -5- Figure 1. DC-10-10 main landing gear tire/wheel assembly positions. system was an intermittent, very light or light rain with winds from the southeast at 10 kns. This general pattern was broken by squalls with moderate to heavy rain and winds from the south to 13 kns, gusting to 17 kns and 23 kns. Pertinent National Weather Service (NWS) observations for the Los Angeles area were: 0900 Local Record - 6,000 ft scattered; measured ceiling, 10,000 ft; visibility--3 mi in rain; temperature--59'F; dewpoint--58"F; wind--130° at 11 kns, gusting to 20 kns; altimeter--29.51 inHg.; ceiling ragged. 0938 Local - 7,000 ft scattered, measured ceiling 15,000 ft; visibility--3 mi in rain; temperature--5gDF; dewpoint--5goF; wind--14O0 at 11 kns gusting to 20 kns; altimeter--29.58 inHg.; .v ceiling ragged (aircraft mishap). The NWS precipitation record for Los Angeles showed 4/100 ins. of rain between 0800 and 0900 and 4/100 between 0900 and 1000.
Page 2 and 3: (of this report) UNCLASSIFIED NTSB
Page 4 and 5: Page 5. Appendixes . . . . . . . .
Page 6 and 7: 1.1 History of the Flight - 2 - 1.
Page 10 and 11: -6- The NWS wind-recording device a
Page 12 and 13: KNOTS INDICATED AIR SPEED - 8 -
Page 14 and 15: - 10 - in the jumpseat of an aircra
Page 16 and 17: - 12 - A trapazoidal portion of the
Page 18 and 19: 1.15 Survival Aspects - 14 - The ac
Page 20 and 21: 4 - 16 - Table 1--Evacuation Patter
Page 22 and 23: z W 0.3 0 Q Y K U t z 0.2 m i LEGEN
Page 24 and 25: ~ ,"I, ," - 20 - 1.16.4 Aircraft Pe
Page 26 and 27: - 22 - compare to the typical wide
Page 28 and 29: Test Strip A C D - 24 - Maximum Ten
Page 30 and 31: 1.17 Additional Information 1.17.1
Page 32 and 33: - 28 - distance above the runway wh
Page 34 and 35: - 30 - 2. ANACYSIS ;- T The flightc
Page 36 and 37: i i !i - 32 - In this instance, tir
Page 38 and 39: ! manufacturer's dry runway, engine
Page 40 and 41: - 36 - likely to reject the takeoff
Page 42 and 43: - 38 - crewmembers who were still i
Page 44 and 45: 11. 12. 13. 14. 15. 16. 17. 18. 19.
Page 46 and 47: I i t 1 I i ! I I ! - 42 - 36. Evac
Page 48 and 49: - 44 - I, Encourage operators of tu
Page 50 and 51: Captain Charles E. Hersche - 46 - A
Page 52: I_ - 48 - APPENDIX C AIRCRAFT INFOR

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