ANC93LA082

NTSB accident investigation · Piper PA-22-108 · Skwentna, AK · June 6, 1993

Accident · No injuriesLimited investigationFinal report
Date
June 6, 1993, 12:20 local (20:20 UTC)
Place
Skwentna, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5104ZPiper PA-22-108
Weather
Visual (VMC) · Day
Status
Completed · report May 17, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930606017059A
Case key
2353

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 pilot in command not maintaining directional control of the airplane. A factor in the accident was the gusty wind condition.

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.

Nose overLanding - roll
Directional control - not maintainedPilot in commandCause
GustsFactor
Loss of control - on ground/waterLanding - roll

Analysis

The pilot said that he was performing a soft field landing during gusty wind conditions and that while attempting to compensate for the wind he was too abrupt with the rudder controls and the airplane began skidding sideways to the right. The left landing gear caught on the ground and the airplane rolled over onto its back.

Factual narrative

On June 6, 1993, at 1220 Alaska daylight time (ADT), a wheel equipped Piper PA22-108 airplane, N5104Z, collided with terrain shortly after landing on runway 09 at the Skwentna Airport. The private pilot and passenger, the sole occupants, were not injured and the airplane sustained substantial damage. The airplane was being operated as a pleasure flight under 14 CFR Part 91 when the accident occurred. The flight originated at the Merrill Field Airport in Anchorage, Alaska, at approximately 1115 ADT. Visual meteorological conditions prevailed at the time and a VFR flight plan was not in effect.

The pilot stated that he was in the process of performing a soft field landing and that as the plane touched down he encountered a gust of wind from the west/northwest which required him to depress the left rudder pedal)to keep the airplane aligned with the runway centerline. The pilot said that he overcompensated for the wind and that he depressed the right rudder pedal and added a "little power". He further reported that as a result of being "too abrupt" in his use of the right rudder pedal, the airplane started to slide sideways in the gravel. The left landing gear tire caught and the left wing struck the ground followed by the airplane rolling over onto its back.

Aircraft

Registration
N5104Z
Reported as
Piper PA-22-108
Category
Airplane
Serial number
22-8740
Engine
Lycoming O-235-C1, 108 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hammer, Leo J.
Registered owner
Hammer, Leo J.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · June 16, 1992 · 25 hours before
Departed
MRI · Merrill Field, AK
Airport
SKW · Skwentna, runway 9, 3,400 × 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
51
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
54 total · 5 in this make and model · 25 as pilot in command · 35 in the last 90 days · 16 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 8 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 48 °F
Altimeter
29.00 inHg
Observed at
SKW, 1 nm away

FAA reports on this event · 1

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