ANC03LA047

NTSB accident investigation · Piper PA-20 · Palmer, AK · April 23, 2003

Accident · No injuriesLimited investigationFinal report
Date
April 23, 2003, 13:30 local (21:30 UTC)
Place
Palmer, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5589HPiper PA-20
Weather
Visual (VMC) · Day
Status
Completed · report November 25, 2003
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA-AL-ANC FSDO 03
Case key
56873

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain directional control of the airplane during the landing roll which resulted in an inadvertent ground loop and collapse of the left main landing gear.

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.

Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot in commandCause
Ground loop/swerve - inadvertentPilot in command
Main gear collapsedLanding - roll
Landing gear,main gear - overload

Analysis

The commercial certificated pilot was landing a tundra tire-equipped airplane on an asphalt surface runway that was 3,616 feet long and 75 feet wide. The pilot said that during the landing roll, the airplane began to veer left and right, and he added engine power to control the airplane. The pilot indicated that the airplane departed off the runway surface to the right, and then ground looped to the right. The left main landing gear collapsed inward and upward, and the left wingtip struck the ground. The airplane received damage to the left landing gear and fuselage structure, the left wing lift strut, and left wingtip. The pilot reported the wind was from the south-southwest at 5 knots.

Factual narrative

On April 23, 2003, about 1330 Alaska daylight time, a tundra tire-equipped Piper PA-20 airplane, N5589H, sustained substantial damage when it departed off the right side of the runway and ground looped during the landing roll at the Palmer Municipal Airport, Palmer, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot/owner. The commercial certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at the Birchwood Airport, Chugiak, Alaska, at 1315. No flight plan was filed, nor was one required.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on April 23, the pilot reported that he was landing on runway 27 at the Palmer Airport. Runway 27 has an asphalt surface and is 3,616 feet long and 75 feet wide. The pilot said that during the landing roll, the airplane began to veer left and right, and he added engine power to control the airplane. The pilot indicated that the airplane departed off the runway surface to the right, and then ground looped to the right. The left main landing gear collapsed inward and upward, and the left wingtip struck the ground. The airplane received damage to the left landing gear and fuselage structure, the left wing lift strut, and left wingtip.

The pilot reported the wind was from the south-southwest at 5 knots.

Aircraft

Registration
N5589H
Reported as
Piper PA-20
Category
Airplane
Serial number
20-651
Airframe hours
912
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Craig E. Walters
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 26, 2002 · 25 hours before
Departed
PABV · Chugiak, AK
Destination
PAAQ · Palmer, AK
Airport
PAAQ · Palmer Municipal, runway 27, 3,616 × 75 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
39
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Last flight review
July 31, 2002
Seat
Left
Flight hours
1,280 total · 95 in this make and model · 1,180 as pilot in command · 120 in the last 90 days · 50 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 5 knots, gusting 10
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F

Other investigations on N5589H · 1

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