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ANC92LA095

1992-06-18 · QUINHAGAK, Alaska, United States · None · 1 aircraft · Status: Completed

Airport AQH

Current FAA registration · N23CF

Make / Model
CESSNA 207
Year of manufacture
1974 · 18 years old at event
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
6 seats · 1 engine
Last airworthiness date
19741219
ADS-B equipped
Yes — Mode-S A2065F

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

ENGINE FAILURE DUE TO TOTAL OIL LOSS. CONTRIBUTING TO THE ACCIDENT WERE THE SEPARATION OF THE OIL FILTER ADAPTER FROM THE OIL PUMP DUE TO IMPROPER MAINTENANCE PROCEDURES AND NON ADHERENCE TO RECOMMENDED DIRECTIVES BY COMPANY MAINTENANCE PERSONNEL, AND THE UNSUITABLE TERRAIN ON WHICH TO MAKE THE FORCED LANDING.

Factual narrative

JUST AFTER MAKING THE INITIAL TAKEOFF CLIMB POWER REDUCTION THE PILOT NOTICED THAT THE ENGINE OIL PRESSURE WAS INDICATING ZERO. BEFORE HE COULD LAND AT HIS DEPARTURE AIRPORT THE ENGINE SEIZED. AN OFF AIRPORT FORCED LANDING RESULTED IN SUBSTANTIAL DAMAGE TO THE AIRPLANE. THE ENGINE OIL FILTER ADAPTER HAD SEPARATED FROM THE OIL PUMP HOUSING, AND ALL ENGINE OIL WAS LOST. THE THREADS ON THE ADAPTER AND HOUSING WERE WORN AND DAMAGED. THE ADAPTER HAD LAST BEEN INSTALLED USING WATER PUMP PLIERS INSTEAD OF THE SPECIAL WRENCH AS PER THE CESSNA MAINTENANCE MANUAL. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1992_ANC92LA095.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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Related research

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