ANC89LA175

NTSB accident investigation · Piper PA-12 · Cottonwood Crk, AK · September 26, 1989

Accident · No injuriesLimited investigationFinal report
Date
September 26, 1989, 14:30 local (22:30 UTC)
Place
Cottonwood Crk, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3882MPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 1991
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19890926036209A
Case key
5270

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

Improper inflight planning/decision by the pilot and his failure to maintain adequate airspeed. Factors related to the accident were: the pilot's low pass over rising terrain and the aircraft's subsequent impact with alder bushes (high vegetation).

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 objectManeuvering
In-flight planning/decision - improperPilot in commandCause
Low pass - initiatedPilot in commandFactor
Terrain condition - risingFactor
Door,exterior crew - open
Airspeed - inadequatePilot in commandCause
Terrain condition - high vegetationFactor

Aircraft

Registration
N3882M
Reported as
Piper PA-12
Category
Airplane
Serial number
12-2778
Airframe hours
3,110
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Forest C. Nelson
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 20, 1988 · 41 hours before
Departed
9Z9 · Lawning, 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
40
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
900 total · 700 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
30 statute miles
Lowest ceiling
None
Temperature
45 °F, dew point -0 °F

FAA reports on this event · 1

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