# Incident 19800107013479I: Lkheed 1011/, San Francisco, CA, January 7, 1980

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 7, 1980, 21:43 local time
- Place: San Francisco, CA
- Airport: International
- Phase of flight: Final Approach
- Operating rules: Air carrier (Part 121)
- Operator: TWAA
- Location: 37.7750° N, 122.4194° W: Placed by OpenAirDocs: center of San Francisco, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7750&lon=-122.4194&mi=10
- Aircraft: N31021, a cancelled registration (https://openairdocs.org/deregistered/N31021-1993-11-05) (OpenAirDocs)
- Registry model: Lockheed L-1011-385-1 (registry code 5265010, https://openairdocs.org/model/lockheed-l-1011-385-1) (OpenAirDocs)
- Reported make and model: LKHEED 1011/
- People aboard: 74
- Fatal injuries: 0
- Pilot flight hours: 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19800107013479I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

UNABLE TO EXTEND FLAPS BEYOND TEN DEGREES. MAINTENANCE REPLACED FLAP ASSYMETRY COMPARATOR UNIT.

## Other reports on N31021 (6)

Matched to the same aircraft by N-number and date.

- [Incident 19890529027209I](https://openairdocs.org/incident/19890529027209I), May 29, 1989: Lkheed 10113851 (N31021), Hilo, HI. Malfunctioning fuel indicator en route. Unable to determine fuel status. Diverted to Hilo. Found hole in fuel line.
- [Incident 19870929065259I](https://openairdocs.org/incident/19870929065259I), Sep 29, 1987: Lkheed 10113851 (N31021), St Louis, MO. The airliner lost a hydraulic system on approach. The right main gear actuator was found ruptured at the rod end.
- [Incident 19801222085199I](https://openairdocs.org/incident/19801222085199I), Dec 22, 1980: Lkheed 1011* (N31021), Jamaica, NY. Flaps would not extend for landing. Assymetry brake assembly change corrected the problem.
- [Incident 19800828065549I](https://openairdocs.org/incident/19800828065549I), Aug 28, 1980: Lkheed 1011/ (N31021), St Louis, MO. Unidentified person observed shooting at aircraft. No damage found.
- [Incident 19781106023259I](https://openairdocs.org/incident/19781106023259I), Nov 6, 1978: Lkheed 1011/ (N31021), Kansas City, MO. Flight diverted due to engine stalling at altitude, engine caught fire on shutdown, found FOD to compressor.
- [Incident 19780314015929I](https://openairdocs.org/incident/19780314015929I), Mar 14, 1978: Lkheed 1011/ (N31021), Boston, MA. Pilot aborted takeoff due to two loud bangs. Investigation failed to reveal source.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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