ANC12CA043

NTSB accident investigation · Piper PA-18-150 · Anchorage, AK · May 29, 2012

Accident · No injuriesData collectionFinal report
Date
May 29, 2012, 11:00 local (19:00 UTC)
Place
Anchorage, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3772ZPiper PA-18-150
Defining event
Landing-flare/touchdown: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report October 9, 2012
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20120529011229A
Case key
83796

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 while landing in a gusting crosswind.

Findings · 4

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-18-150: 13 casesAll aircraft: 1,008 cases
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on equipmentPiper PA-18-150: 34 casesAll aircraft: 1,199 cases
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 3 casesAll aircraft: 184 casesProbable cause

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 was on final approach to runway 4, when just prior to touchdown, a gust of wind pushed the airplane to the left. The left wingtip hit trees and brush, and the airplane turned left with the right wing and right elevator contacting the ground. Wind was estimated from 100 degrees at 10 to 15 knots, gusting to 25 knots. The airplane sustained substantial damage to the right wing and right elevator. The pilot indicated there were no preaccident mechanical anomalies with the airplane.

Factual narrative

The pilot was on final approach to runway 04, when just prior to touchdown, a gust of wind pushed the airplane to the left. The left wingtip hit trees and brush, and the airplane turned left with the right wing and right elevator contacting the ground. Wind was estimated from 100 degrees at 10 to 15 knots, gusting to 25 knots. The airplane sustained substantial damage to the right wing and right elevator. The pilot indicated there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N3772Z
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7451
Airframe hours
5,244
Engine
Lycoming O-235 SERIES, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 6, 2012
Departed
PAMR · Anchorage, AK
Destination
Anchorage, AK
Flight plan
Unknown
Airport
runway 04, 900 × 100 ft, grass/turf

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
72
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
May 19, 2011
Seat
Front
Flight hours
4,957 total · 3,465 in this make and model · 19 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 15 knots, gusting 25
Visibility
20 statute miles
Lowest ceiling
5,000 ft broken
Temperature
55 °F
Observed at
ENA, 20 nm away

Docket · 1

The files NTSB released with the investigation on July 27, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.8 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.