ANC92LA095

NTSB accident investigation · Cessna 207 · Quinhagak, AK · June 19, 1992

Accident · No injuriesLimited investigationFinal report
Date
June 18, 1992, 19:30 local (Jun 19, 1992, 03:30 UTC)
Place
Quinhagak, AK
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N23CFCessna 207
Weather
Visual (VMC) · Day
Status
Completed · report May 26, 1993
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Safety recommendations
Yes
FAA report
19920618021179A
Case key
5746

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

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.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(total) - mech failure/malfTakeoff - initial climb
Lubricating system,oil filter/screen - separationFactor
Procedures/directives - not followedCompany maintenance personnelFactor
Insufficient standards/requirementsCompany/operator mgmt
Fluid,oil - loss,totalCause
Forced landingDescent - emergency
Gear collapsedLanding - flare/touchdown
Terrain condition - none suitableFactor

Analysis

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.

Aircraft

Registration
N23CF
Reported as
Cessna 207
Category
Airplane
Serial number
20700276
Airframe hours
8,092
Engine
Continental IO-520-F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Hageland Avn. Services, Inc.
Registered owner
Hageland Avn. Services, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 8, 1992 · 29 hours before
Departed
AQH · AK
Destination
BET · Bethel, AK
Flight plan
Company VFR
Airport
AQH · Quinhagak, runway 22, 2,600 × 50 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
47
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed
Flight hours
9,140 total · 1,850 in this make and model · 8,400 as pilot in command · 155 in the last 90 days · 60 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 15 knots
Visibility
30 statute miles
Lowest ceiling
None
Temperature
55 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N23CF · 1

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