# Incident 19861126085169I: Lear 55LEAR, Tucson, AZ, November 26, 1986

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 26, 1986, 12:41 local time
- Place: Tucson, AZ
- Phase of flight: Descent
- Operating rules: General operating rules (Part 91)
- Location: 32.2217° N, 110.9265° W: Placed by OpenAirDocs: center of Tucson, AZ, within about 9 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.2217&lon=-110.9265&mi=10
- Aircraft: N7US (not matched to a registry record)
- Reported make and model: LEAR 55LEAR
- Fatal injuries: 0
- Pilot flight hours: 0 total, 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/19861126085169I

## Narrative

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

DURING TEST FLIGHT FOR AUTOPILOT MAINTENANCE,AIRCRAFT DESCENDED 400 FEET. ALTITUDE HOLD MALFUNCTIONED.

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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