ANC94LA117

NTSB accident investigation · Stinson 108-1 · Anchorage, AK · August 31, 1994

Accident · No injuriesLimited investigationFinal report
Date
August 30, 1994, 22:18 local (Aug 31, 1994, 06:18 UTC)
Place
Anchorage, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N9130KStinson 108-1
Weather
Visual (VMC) · Day
Status
Completed · report May 9, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19940830024139A
Case key
2549

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

The binding in the mechanical fuel selector valve, and lack of suitable terrain for a 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) - nonmechanicalCruise
Fuel system,selector/valve - binding(mechanical)Cause
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency descent/landing
Terrain condition - none suitableCause

Analysis

The airplane experienced a loss of engine power while in cruise flight and collided with trees during the forced landing in tree covered terrain. The airplane's fuel selector valve would bind when rotated and there were no indentations at the right, left, or off positions. The fuel selector valve would remain wherever it was positioned.

Factual narrative

On August 30, at 2218 Alaska daylight time, a wheel equipped Stinson 108-1 airplane, N9130K, registered to and operated by the pilot, experienced a power failure during cruise flight and was forced to land in the trees approximately 14 miles southeast of Anchorage, Alaska. The personal flight, operating under 14 CFR Part 91, departed Seldovia, Alaska, and the destination was Merrill Field in Anchorage. A VFR flight plan was filed and visual meteorological conditions prevailed. The Private Certificated Pilot and his passenger were not injured and the airplane was substantially damaged.

According to the pilot, there was no warning and no backfire and the fuel tank from which he was operating indicated 3/4 of a tank.

The airplane was inspected after it was recovered and no fuel was located in any of the fuel tanks. However, the airplane remained upside down in the trees for a few days before it was recovered. The fuel selector valve was examined and it was found to bind during rotation between all of the positions. There were no indentations at any of the positions. The available positions were "RIGHT, LEFT, and OFF." The fuel selector valve was marked with the correct positions listed but the placard was not from the original manufacturer.

No other mechanical abnormalities were found with the airplane.

Aircraft

Registration
N9130K
Reported as
Stinson 108-1
Category
Airplane
Serial number
108-2130
Engine
Lycoming O-435-I-C, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Meyers, O.T.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 1, 1994 · 9 hours before
Departed
SOV · Seldovia, AK
Destination
MRI · AK
Flight plan
VFR

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
55
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
224 total · 121 in this make and model · 149 as pilot in command · 7 in the last 90 days · 3 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
60 statute miles
Temperature
50 °F

FAA reports on this event · 1

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