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Atlas / NTSB / LAX90LA107

NTSB CAROL · Event

Event LAX90LA107

1990-02-28 CHIRIACO SUMMIT, California, United States Airport · L77 None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

A ENGINE COMPARTMENT FIRE OF UNDETERMINED ORIGIN DDURING ENGINE START.

Factual narrative

AFTER REPEATED ATTEMPTS WERE MADE TO START THE ENGINE, A FIRE BEGAN IN THE ENGINE COMPARTMENT. AS SOON AS THE FIRE WAS OBSERVED, THE FUEL PUMP AND MIXTURE WERE TURNED OFF/CLOSED AND THE ENGINE WAS REPEATEDLY CRANKED OVER. THE FIRE SPREAD AND EVENTUALLY CONSUMED THE AIRCRAFT. THE MALFUNCTION WITHIN THE ENGINE STARTING SYSTEM, AND ITS RELATIONSHIP TO THE FUEL-FED ENGINE COMPARTMENT FIRE, WAS NOT DETERMINED. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_LAX90LA107.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.