ANC93LA163

NTSB accident investigation · Piper PA-18-150 · Victory, AK · August 31, 1993

Accident · No injuriesLimited investigationFinal report
Date
August 30, 1993, 17:00 local (Aug 31, 1993, 01:00 UTC)
Place
Victory, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9016YPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report December 2, 1994
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19930830032369A
Case key
2418

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 partial failure of the airplane's brake system. Factor was the intentional ground looping by the pilot-in-command.

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.

On ground/water encounter with terrain/waterLanding - roll
Landing gear,normal brake system - failure,partialCause
Ground loop/swerve - intentionalPilot in commandFactor

Analysis

Upon landing the pilot-in-command stated he had no brakes on the left side so he intentionally ground looped the airplane. He stated the brakes were modified with a cleveland brake modification. He stated the bolt heads pulled through the backing plate. He did not submit any parts for examination.

Factual narrative

On August 30, 1993 at 1700 Alaska daylight time, a wheel equipped Piper, PA-18-150 airplane, N9016Y, registered to and operated by the Pilot-in-Command, intentionally ground looped during the landing roll at a private airstrip located near mile 102 of the Glenn Highway. The personal flight, operating under 14 CFR Part 91, last departed the airstrip for a local flight. No flight plan was filed and visual meteorological conditions prevailed. The airplane was substantially damaged and the Private Certificated Pilot in Command, the sole occupant, was not injured.

According to the Pilot in Command upon landing he realized he had no brakes on the left side during the landing roll and as a result ground looped the airplane causing damage to both left wing spars, wing tip, aileron and elevator. The Pilot stated the airplane was equipped with a Cleveland Brake Wheel modification and the bolt heads pulled through the backing plate.

The Pilot-in-Command did not submit a NTSB Form 6120.1/2 and the bolts and backing plate for the Cleveland Brake Wheel modification were not submitted for examination.

Aircraft

Registration
N9016Y
Reported as
Piper PA-18-150
Category
Airplane
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Stevensen, William E.
Registered owner
Stevensen, William E.
Airworthiness certificate
Standard, Normal
Airport
Near Victory

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
35
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
2,186 total · 40 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
8,000 ft overcast

FAA reports on this event · 1

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

Other investigations on N9016Y · 2

Matched to the same aircraft by N-number and date.