ANC95LA026

NTSB accident investigation · Piper PA-17 · Dutch Harbor, AK · January 6, 1995

Accident · No injuriesLimited investigationFinal report
Date
January 6, 1995, 18:15 local (22:15 UTC)
Place
Dutch Harbor, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N4492HPiper PA-17
Weather
Visual (VMC) · Day
Status
Completed · report August 23, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19950106044109A
Case key
2623

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 right brake due to a leaky brake line.

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.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,normal brake system - failure,partialCause
Main gear collapsedLanding - roll

Analysis

Upon landing, the airplane started to turn to the right and the pilot applied left rudder and left brake and corrected the turn. The airplane then began to turn left and the pilot applied right brake and rudder. The right brake did not respond and the airplane ground looped. The right main gear collapsed and the right wing struck the runway. A pressure check and examination of the right brake system showed a leak from an original Piper manufactured brake line that was connected to the master cylinder.

Factual narrative

On January 6, 1995, at 1815 Alaska standard time, a wheel equipped Piper PA-17 airplane, N4492H, registered to Ross Nixon and operated by the pilot, ground looped during landing at Dutch Harbor, Alaska. The personal flight, operating under 14 CFR Part 91, departed Dutch Harbor for a local flight. No flight plan was filed and visual meteorological conditions prevailed. The private certificated pilot and his passenger were not injured and the airplane received substantial damage.

According to the pilot, during the landing roll the airplane began to veer gently to the right and he corrected by applying left rudder. The airplane then began to veer to the left and he applied right rudder. When the airplane did not respond, he applied right brake. The application of the right brake had no effect on the ground track of the airplane. The airplane continued to turn to the left and the right main gear collapsed. The right wing dragged the ground.

A pressure check and examination of the brake system showed that the brake line leading to the master cylinder was leaking. The brake line was an original Piper manufactured brake line.

Aircraft

Registration
N4492H
Reported as
Piper PA-17
Category
Airplane
Serial number
15-280
Airframe hours
2,830
Engine
Continental C85-8, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
William R. Coon
Registered owner
Ross Nixon
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 30, 1994 · 5 hours before
Departed
DUT
Airport
DUT · Dutch Harbor, runway 30, 3,900 × 100 ft, asphalt

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
22
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
187 total · 2 in this make and model · 13 in the last 90 days · 7 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 5 knots
Visibility
10 statute miles
Lowest ceiling
1,800 ft overcast
Temperature
36 °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.

Other investigations on N4492H · 1

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