ANC21LA075

NTSB accident investigation · Piper PA-18 · Talkeetna, AK · August 10, 2021

Accident · Minor injuriesClass 3 · LimitedFinal report
Date
August 9, 2021, 20:30 local (Aug 10, 2021, 04:30 UTC)
Place
Talkeetna, AK
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N1264APiper PA-18
Defining event
Initial climb: Flight control sys malf/fail
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration (OPS)
FAA report
20210809013619A
Case key
103737

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 malfunction of the control stick during initial climb for reasons that could not be determined based on available evidence.

Findings · 1

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.

Flight control system: control column sectionAircraft › Aircraft systems · InoperativePiper PA-18: 3 casesAll aircraft: 21 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 reported that, during takeoff from a private gravel-covered airstrip, the control stick “jammed” as the airplane climbed between 10 and 15 ft above ground level. Because the pilot and the passenger were both unable to move the control stick at their positions, the pilot closed the engine throttle to attempt an emergency landing. The airplane landed in an area of tree-covered terrain, resulting in substantial damage to the wings, fuselage, and empennage. Postaccident examination of the airplane revealed no mechanical problems that would have precluded normal operation of the airplane. The cause of this accident could not be determined from the available evidence.

Factual narrative

On August 9, 2021, about 2030 Alaska daylight time, a Piper PA-18 airplane, N1264A, was substantially damaged when it was involved in an accident near Talkeetna, Alaska. The pilot and the passenger sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, during takeoff from a private gravel-covered airstrip, the control stick “jammed” as the airplane climbed between 10 and 15 ft above ground level. The pilot noted that she was unable to move the control stick forward and aft or left to right. To regain elevator and aileron control, the pilot asked the passenger, who was in the aft seat, to assist using the control stick installed in that position, but he was unable to move the control stick. The pilot then decided to close the engine throttle and attempt an emergency landing. Subsequently, the airplane landed in an area of tree-covered terrain, resulting in substantial damage to the wings, fuselage, and empennage. Postaccident examination of the airplane found no preaccident mechanical anomalies that would have precluded normal operation. Specifically, examination of the forward and aft control stick mechanisms found no obstructions, and the mechanisms operated with a full range of motion. Also, control cable continuity was established.

Aircraft

Registration
N1264A
Reported as
Piper PA-18 (160)
Category
Airplane
Serial number
18-1060
Built
1951
Airframe hours
5,203
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Pierskalla Sheila
Registered owner
Pierskalla Nicolas B
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 1, 2021 · 50 hours before
Destination
4AK6 · Wasilla, AK
Airport
AK61 · Stephan Lake Lodge, runway 18/36, 3,000 × 50 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
62
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Front
Restraint
4-point
Flight hours
1,492 total · 1,359 in this make and model · 1,409 as pilot in command · 53 in the last 90 days · 21 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
20 statute miles
Lowest ceiling
5,000 ft broken

Docket · 3

The files NTSB released with the investigation on December 8, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 5.0 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.