ANC95LA145

NTSB accident investigation · Piper PA-18A · Skwentna, AK · August 17, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 17, 1995, 09:00 local (17:00 UTC)
Place
Skwentna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9067DPiper PA-18A
Weather
Visual (VMC) · Day
Status
Completed · report March 6, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950817025749A
Case key
2723

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's improper planning/decision. A factor relating to the accident was: the pilot's selection of a short/uneven landing area that required excessive braking action while landing with a tailwind.

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
Planning/decision - improperPilot in commandCause
Weather condition - tailwindFactor
Terrain condition - rough/unevenFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandFactor
Brakes(normal) - excessivePilot in command

Analysis

The pilot was landing on a river gravel bar near a remote lodge. The landing area was oriented on a 090 degree heading. It was about 375 feet long at 2,300 feet mean sea level. A slight tailwind was present from the west of about 4 knots. After touchdown, the pilot applied the brakes, and the airplane started to nose down. He released the brakes, but was approaching the end of the landing area. The airplane encountered a dip in the gravel surface when the pilot applied braking action once again. The airplane then nosed over and received damage to the wing ribs.

Factual narrative

On August 17, 1995, about 0900 Alaska daylight time, a tundra tire equipped Piper PA-18, N9067D, crashed during landing in a remote area near the Post Lake Lodge, about 67 miles west of Skwentna, Alaska. The airplane was being operated as a visual flight rules (VFR) local area business flight under Title 14 CFR Part 91 when the accident occurred. The airplane, operated by the pilot, sustained substantial damage. The certificated private pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated from an area near Rohn, Alaska, about 0830.

In a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), the pilot reported that he was asked by a guide to fly to the area of the Post Lake Lodge, near the Post River, to check on the status of clients. He stated that although he is a guide for Alaska Wilderness Outfitters, he was not checking on his own clients. The pilot indicated that he was landing to the east on a gravel bar with a slight tailwind from the west of about 4 knots. The landing area is about 375 feet long at 2,300 feet mean sea level. After touchdown, the pilot applied the brakes and the airplane started to nose down. He released the brakes but was approaching the end of the landing area. The airplane encountered a dip in the gravel surface when the pilot applied braking action once again. The pilot said that the airplane then nosed over and received damage to the wing ribs.

Following the accident, the pilot contacted the NTSB Northwest Field Office to report that the airplane did not receive substantial damage. A Federal Aviation Administration (FAA) inspector from the Anchorage Flight Standards District Office (FSDO) talked with the pilot to arrange for an inspection of the airplane. The pilot did not keep the appointment. An NTSB pilot/operator report (form 6120.1/2) that was provided to the pilot on 8/22/95 and 12/12/95, was not returned.

Aircraft

Registration
N9067D
Reported as
Piper PA-18A
Category
Airplane
Serial number
18-6432
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Operator
James L. Baum
Registered owner
Raymond L. Baum
Airworthiness certificate
Standard, Normal
Departed
Rohn, 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
53
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
5,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 4 knots
Visibility
50 statute miles
Lowest ceiling
None
Temperature
50 °F

FAA reports on this event · 1

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