ANC89FA076

NTSB accident investigation · Cessna 170B · Birchwood, AK · May 23, 1989

Accident · Minor injuriesField investigationFinal report
Date
May 22, 1989, 16:02 local (May 23, 1989, 00:02 UTC)
Place
Birchwood, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3132BCessna 170B
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 1991
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
5109

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

Failure of the pilot to assure that the fuel selector was in the proper detent for takeoff. A factor related to the accident was: the soft/muddy terrain conditions in the emergency landing area.

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) - nonmechanicalTakeoff - initial climb
Fuel tank selector position - improperPilot in commandCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding
Terrain condition - softFactor
Terrain condition - wetFactor

Analysis

The plt stated he made an eng run-up with the fuel selector in the left tank position, then he moved the selector to use the right tank for takeoff. During takeoff, the acft climbed aprx 200 to 300 ft AGL, then the eng lost power. Subsequently, the acft was damaged during an emergency landing in a swamp/mud flat. No preimpact part failure or malfunction of the acft or eng was found. The plt rprtd that when he touched the fuel selector handle, during the emergency restart procedure, he felt the selector go into the right detent position.

Aircraft

Registration
N3132B
Reported as
Cessna 170B
Category
Airplane
Serial number
25374
Airframe hours
3,370
Engine
Continental C-145, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Michael & Linda Petrie
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 20, 1988 · 34 hours before
Departed
Z15
Airport
Z15 · Birchwood, runway 19, 4,000 × 100 ft, macadam

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
33
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
68 total · 13 in this make and model · 29 as pilot in command · 38 in the last 90 days · 22 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
30 statute miles
Lowest ceiling
None
Temperature
55 °F