# Accident 19900718030589A: Cessna 421C, Lancaster, CA, July 18, 1990

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 18, 1990, 09:33 local time
- Place: Lancaster, CA
- Airport: Gen Wm J Fox Airfield Airport
- Damage: Substantial damage
- Phase of flight: Forced/Precautionary Landing
- Operating rules: General operating rules (Part 91)
- Location: 34.7199° N, 118.4791° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=34.7199&lon=-118.4791&mi=10
- Aircraft: N6089X, a cancelled registration (https://openairdocs.org/deregistered/N6089X-1993-07-13) (OpenAirDocs)
- Registry model: Cessna 421C (registry code 2076016, https://openairdocs.org/model/cessna-421c) (OpenAirDocs)
- Reported make and model: CESSNA 421C
- Reported engine: CONT GTSIO520L
- People aboard: 5
- Fatal injuries: 0
- Pilot flight hours: 59,000 total, 402 in this make and model, 270 in the last 90 days
- NTSB investigation: [NTSB LAX90LA259](https://openairdocs.org/ntsb/LAX90LA259) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19900718030589A

## Narrative

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

LOST POWER ON CLIMBOUT. LANDED GEAR UP TO AVOID WIRES. IGNITERS WORN AND SOOTED. HAD RECENT ANNUAL INSPECTION.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB LAX90LA259](https://openairdocs.org/ntsb/LAX90LA259), Jul 18, 1990: Cessna 421C (N6089X), Lancaster, CA, substantial damage. Probable cause: THE ACCIDENT WAS ERODED IGNITION SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG ELECTRODES AND MAINTENANCE PERSONNEL NEGLECTING TO ADJUST SPARK PLUG GAP. THE ROUGH…

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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