ANC93LA103

NTSB accident investigation · Piper PA-18-150 · Uganik River, AK · June 28, 1993

Accident · No injuriesLimited investigationFinal report
Date
June 27, 1993, 16:30 local (Jun 28, 1993, 00:30 UTC)
Place
Uganik River, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N13880Piper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report August 17, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930627025799A
Case key
2370

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

Pilot in commands failure to compensate adequately for shifting wind conditions and his selection of unsuitable terrain on which to land. A factor in the accident was the rough uneven terrain landing strip.

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
Terrain condition - rough/unevenFactor
Compensation for wind conditions - not maintainedPilot in commandCause
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause

Analysis

The pilot in command of the tundra tire equipped aircraft elected to land on a short gravel bar strip which was strewn with rocks. Compensation for shifting winds was not made and the airplane nosed over. The pilot overflew the strip prior to landing but did not detect hazardous conditions.

Factual narrative

On June 27, 1993, at approximately 1630 Alaska daylight time, a tundra tire equipped PA18-150 airplane, N13880, nosed over on landing at a gravel bar landing strip on the Uganik River, 30 miles west of the town of Kodiak, Alaska. The sole occupant, a certificated private pilot, had departed Kodiak Municipal at 1530 with a stop at Port Lyons, also on Kodiak Island. The personal flight was conducted under 14 CFR Part 91 in visual meteorological conditions, without a flight plan. The pilot was not injured, however the airplane sustained substantial damage.

The pilot told the investigators that he had overflown the landing area on two passes before landing; however, when he landed the wind was "squirrelly [sic] and probably should have gone around, (and) couldn't stop it, it went over." He said that when he examined the airplane after righting it that the damage included a bent rudder, one upper and one lower bent longeron as well.

In a statement to the NTSB, the pilot recommended that he should (in the future) land shorter, avoid boulders and use less brake pressure.

Aircraft

Registration
N13880
Reported as
Piper PA-18-150
Category
Airplane
Serial number
7409051
Airframe hours
2,074
Engine
Lycoming O-320-A2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Merriman, Thomas W., doing business as Mack'S Sport Shop, Inc.
Registered owner
Mack'S Sport Shop, Inc.
Airworthiness certificate
Special, Provisional (Special); Standard, Normal
Last inspection
Annual · June 24, 1992 · 103 hours before
Departed
KDK · Kodiak Muni, AK

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
57
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
444 total · 389 in this make and model · 355 as pilot in command · 31 in the last 90 days · 25 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 10 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
3,500 ft overcast
Temperature
55 °F, dew point 45 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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