- Date
- February 18, 1990, 16:22 local (Feb 19, 1990, 00:22 UTC)
- Place
- Los Angeles, CA
- Injuries
- 1 minor, 192 uninjured
- Damage
- Minor damage
- Phase of flight
- Takeoff
- Aircraft
- N31013Lockheed L-1011-385-1
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 30, 1992
- Report
- Approved by Office Director
- FAA report
- 19900218019649I
- Case key
- 26660
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
Probable cause
The failure of the weld holding the slip joint to the pneumatic dual compensator from the no. 2 engine.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
The weld at a slip joint to the pneumatic dual compensator for the no. 2 engine on a Lockheed L-1011-385-1 separated in the mid-cargo compartment area. That bleed air from the engine activated the fire warning lasp circuity in the area alerting the crew. This is the third known separation of this unit. These items are on the c-phase inspection. Two service bulletins were issued in 1978 and revised in 1984 (SB09336-041).
Aircraft
- Registration
- N31013
- Reported as
- Lockheed L-1011-385-1 (L-1011-385)
- Category
- Airplane
- Serial number
- 193B-1115
- Engine
- Unknown UNKNOWN, turbo fan
- Damage
- Minor damage
- Flight
- Part 121
- Operator
- Twa
- Registered owner
- Unknown
- Destination
- NYC · New York, NY
- Flight plan
- IFR
- Airport
- LAX · Las Angeles
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Unknown
- Flight hours
- 15,000 total
Weather
- Conditions
- Visual (VMC) · Day
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N31013 · 4
Matched to the same aircraft by N-number and date.