# Incident 19891109058669I: Cessna 152, Palmdale, CA, November 9, 1989

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: November 9, 1989, 11:00 local time
- Place: Palmdale, CA
- Airport: Palmdale Prodn Flt Test Instl
- Phase of flight: Fcd/Prec Ldg From Cruise
- Operating rules: General operating rules (Part 91)
- Location: 34.5794° N, 118.1165° W: Placed by OpenAirDocs: center of Palmdale, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5794&lon=-118.1165&mi=10
- Aircraft: N4959H, a cancelled registration (https://openairdocs.org/deregistered/N4959H-2007-02-05) (OpenAirDocs)
- Registry model: Cessna 152 (registry code 2071835, https://openairdocs.org/model/cessna-152) (OpenAirDocs)
- Registry engine: Lycoming 0-235 series (registry code 41505, https://openairdocs.org/engine/lycoming-0-235-series) (OpenAirDocs)
- Reported make and model: CESSNA 152
- Reported engine: LYC O235L2C
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 84 total, 81 in this make and model, 15 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19891109058669I

## Narrative

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

ENGINE ROUGHNESS EN ROUTE. REQUESTED TO LAND AT USAF PLANT DUE TO DETERIORATING POWER.

## Other reports on N4959H (2)

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

- [Incident 19880910049989I](https://openairdocs.org/incident/19880910049989I), Sep 10, 1988: Cessna 152 (N4959H), Riverside, CA. Emergency landing by student due to rough engine. Inspection found bottom 4 spark plugs lead fouled.
- [Accident 19840908047629A](https://openairdocs.org/incident/19840908047629A), Sep 8, 1984: Cessna 152 (N4959H), Rialto, CA, Substantial damage. Exhaust rocker arm adjusting screw and lock nut loose on cylinder of topped engine. Bent intake valve pushrod.

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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