# Incident 19910320014569I: Boeing 737200, Billings, MT, March 20, 1991

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: March 20, 1991, 08:50 local time
- Place: Billings, MT
- Airport: Billings Logan International
- Phase of flight: Forced/Precautionary Landing
- Operating rules: Air carrier (Part 121)
- Operator: UALA
- Location: 45.8078° N, 108.5435° W: Placed by OpenAirDocs at BILLINGS LOGAN INTL (BIL), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.8078&lon=-108.5435&mi=10
- Aircraft: N179UA, a cancelled registration (https://openairdocs.org/deregistered/N179UA-2017-08-17) (OpenAirDocs)
- Registry model: Boeing 747-422 (registry code 1384935, https://openairdocs.org/model/boeing-747-422) (OpenAirDocs)
- Registry engine: Pratt & Whitney PW4000 series (registry code 52119, https://openairdocs.org/engine/pratt-whitney-pw4000-series) (OpenAirDocs)
- Reported make and model: BOEING 737200
- People aboard: 40
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910320014569I

## Narrative

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

EXPERIENCED AN ELEVATOR DIFFERENTIAL WARNING LIGHT ON CLIMB. RETURNED. LANDED SAFELY.

## Other reports on N179UA (1)

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

- [Accident 19980511046349A](https://openairdocs.org/incident/19980511046349A), May 11, 1998: Boeing 747422 (N179UA), Narita. (.4)This incident is being investigated by the government of japan.

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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