ANC14CA013

NTSB accident investigation · Piper PA 20 · Platinum, AK · December 24, 2013

Accident · No injuriesData collectionFinal report
Date
December 23, 2013, 15:30 local (Dec 24, 2013, 00:30 UTC)
Place
Platinum, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7069KPiper PA 20
Defining event
Landing-flare/touchdown: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report May 5, 2014
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA
FAA report
20131224025389A
Case key
88588

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 during a crosswind landing.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-20: 20 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-20: 25 casesAll aircraft: 9,295 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-20: 5 casesAll aircraft: 1,008 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that he was landing his tailwheel-equipped airplane on a dry, gravel airstrip, which required a correction for a 10 knot right crosswind. He said that during touchdown, a gust of wind picked the airplane up three to four feet, and the airplane drifted left of the centerline. During the second touchdown, the airplane weather-vaned into the wind, and the pilot said that full left rudder had no effect. The airplane continued across the runway and into a ditch, sustaining substantial damage to the right wing. The pilot reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that he was landing his tailwheel-equipped airplane on a dry, gravel airstrip, which required a correction for a 10 knot right crosswind. He said that during touchdown, a gust of wind picked the airplane up three to four feet, and the airplane drifted left of the centerline. During the second touchdown, the airplane weather-vaned into the wind, and the pilot said that full left rudder had no effect. The airplane continued across the runway and into a ditch, sustaining substantial damage to the right wing. The pilot reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N7069K
Reported as
Piper PA 20 (150)
Category
Airplane
Serial number
20-174
Built
1950
Airframe hours
3,642
Engine
Lycoming O-290 SERIES, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 7, 2013 · 89 hours before
Departed
Togiak, AK
Destination
PTU · Platinum, AK
Airport
PTU · Platinum, runway 32, 3,300 × 75 ft, gravel

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
52
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
December 19, 2013
Seat
Left
Restraint
Lap only
Flight hours
51 total · 51 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 5 knots, gusting 10
Visibility
10 statute miles
Lowest ceiling
None
Temperature
25 °F
Observed at
PAPM

Docket · 1

The files NTSB released with the investigation on April 28, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.8 MB in all.

FAA reports on this event · 1

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