ANC83LA077

NTSB accident investigation · Piper PA-12 · Aniak, AK · May 21, 1983

Accident · Serious injuriesLimited investigationFinal report
Date
May 20, 1983, 18:00 local (May 21, 1983, 02:00 UTC)
Place
Aniak, AK
Injuries
1 serious, 2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N2725MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19830520022989A
Case key
4115

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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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.

In flight collision with objectTakeoff - initial climb
Terrain condition - rough/unevenFactor
Terrain condition - softFactor
Weather condition - tailwindFactor
Object - bird(s)Factor
Object - tree(s)Factor
Visual lookout - inadequatePilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

According to the plt, he was taking off downslope & downwind on bumpy muskeg/tundra with full flaps. At aprx 40 to 45 mph, the acft lifted off before reaching the edge of a deep ravine. He began a shallow left turn, then the left wing struck a tree which spun the acft around about 180 deg from the original heading. After reversing its heading, it was about 200 ft above the terrain in the ravine. The plt lowered the nose, with full throttle applied, & just before impact was able to raise the nose to a level attitude. The plt stated that he did not see the tree & reported there were no preimpact/mechanical irregularities. It was noted that the acft was equipped with non-standard automobile racing slicks (wheels) that were aprx 33 inches in diameter. The wind was reported from 180 deg at 5 gusting 10 KTS.

Aircraft

Registration
N2725M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-1135
Engine
Lycoming O-235C, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Stephan L. Hill
Airworthiness certificate
Standard, Normal
Departed
ANT · Aniak, AK
Flight plan
Unknown
Airport
NONE, runway 8

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
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Unknown, Unknown
Seat
Center

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 5 knots, gusting 10
Visibility
60 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.