- Date
- January 12, 1982, 18:30 local (Jan 13, 1982, 00:30 UTC)
- Place
- Chicago, IL
- Injuries
- 149 uninjured
- Damage
- No damage
- Phase of flight
- Enroute
- Aircraft
- N31031Lockheed L-1011
- Weather
- Night/dark
- Status
- Completed · report January 12, 1983
- Report
- Approved by Office Director
- FAA report
- 19820112005449I
- Case key
- 70223
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the incident.
On this page
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 aircraft had departed boston on a scheduled flight with the #1 generator placarded inoperative and noted in the minimum equipment list. En route to los angeles, CA at FL 350, about 80 mi northeast of bay city, MN., the crew noted a simultaneous loss of #2 and #3 generators and all ac power. After executing the emergency procedures and restoring powervia the APU, the flight diverted to Chicago, IL and made a normal landing. Investigation revealed that the number three generator had an open field lining and the number two generator control unit had a defective "a" phase. The #1 generatorhad experience a sprague clutch failure.
Aircraft
- Registration
- N31031
- Reported as
- Lockheed L-1011
- Category
- Airplane
- Serial number
- 193B-1115
- Airframe hours
- 18,755
- Engine
- Rolls Royce RB-211, 42,000 lbs thrust, turbo fan
- Damage
- No damage
- Flight
- Part 121
- Operator
- Trans World Airlines
- Registered owner
- Trans World Airlines
- Departed
- Boston, MA
- Destination
- Los Angeles, CA
- Flight plan
- IFR
- Airport
- ORD · Chicago O'Hare Inter'L, runway 14, 11,600 × 200 ft, concrete
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
- Age
- 52
- Certificate
- Airline transport
- Airplane ratings
- Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, Valid Medical--no waivers/lim.
Weather
- Conditions
- Night/dark
- Wind
- Calm
- Visibility
- 3 statute miles
- Lowest ceiling
- 1,500 ft
- Temperature
- 52 °F
- Altimeter
- 30.00 inHg
- Observed at
- ORD
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 N31031 · 1
Matched to the same aircraft by N-number and date.