ANC14CA063

NTSB accident investigation · Piper PA 18-150 · Talkeetna, AK · August 11, 2014

Accident · Minor injuriesData collectionFinal report
Date
August 10, 2014, 17:30 local (Aug 11, 2014, 01:30 UTC)
Place
Talkeetna, AK
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8979DPiper PA 18-150
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report November 13, 2014
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
FAA report
20140810015479A
Case key
89844

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 pilots excessive use of the airplanes brakes during the landing roll, which resulted in a nose over. Contributing to the accident was the flight instructor's inadequate supervision of the training flight.

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
Performance/control parameters: surface speed/brakingAircraft › Aircraft oper/perf/capability · Incorrect use/operationPiper PA-18-150: 14 casesAll aircraft: 238 casesProbable cause
Attention/monitoring: monitoring other personPersonnel issues › Psychological · Instructor/check pilotPiper PA-18-150: 4 casesAll aircraft: 200 casesProbable cause
Use of equip/info: use of equip/systemPersonnel issues › Task performance · Student/instructed pilotPiper PA-18-150: 20 casesAll aircraft: 1,391 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 receiving instruction in a tundra tire equipped tailwheel airplane. He stated that this was his first time operating an airplane equipped with heel brakes. Although not proficient, the pilot did possess a tailwheel endorsement. He reported that on taxi he had difficulty reaching the heel brake pedals, and had to physically remove his feet from the rudder pedals in order to apply the brakes. While landing at an off-airport site, during the landing roll the airplane veered slightly to the left and the airplane nosed over sustaining substantial damage to the vertical stabilizer, rudder and left lift strut. The pilot reported that during the landing roll he did not apply the brakes. During his initial call to the National Transportation Safety Board the flight instructor reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation. Due to the pilots inexperience with heel brake tailwheel-equipped airplanes and his difficulty applying the brakes, it is likely that the pilot inadvertently applied to much brake pressure as the airplane neared the end of the landing roll and subsequently nosed over.

Factual narrative

The pilot was receiving instruction in a tundra tire equipped tailwheel airplane. He stated that this was his first time operating an airplane equipped with heel brakes. Although not proficient, the pilot did possess a tailwheel endorsement. He reported that on taxi he had difficulty reaching the heel brake pedals, and had to physically remove his feet from the rudder pedals in order to apply the brakes. While landing at an off-airport site, during the landing roll the airplane veered slightly to the left and the airplane nosed over sustaining substantial damage to the vertical stabilizer, rudder and left lift strut. The pilot reported that during the landing roll he did not apply the brakes. During his initial call to the National Transportation Safety Board the flight instructor reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N8979D
Reported as
Piper PA 18-150 (A150)
Category
Airplane
Serial number
18-7509053
Built
1975
Airframe hours
1,426
Engine
Lycoming O-320, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Williams Steven C
Registered owner
Williams Steven C
Airworthiness certificate
Standard, Normal
Departed
Talkeetna, AK
Destination
PALH · Anchorage, AK

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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
March 17, 2013
Seat
Front
Restraint
4-point
Flight hours
1,306 total · 2 in this make and model · 1,103 as pilot in command · 22 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours
Role
Flight instructor
Age
27
Injuries
None
Certificates
Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
December 20, 2013
Seat
Rear
Restraint
4-point
Flight hours
4,800 total · 480 in this make and model · 3,500 as pilot in command · 230 in the last 90 days · 80 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 4 knots
Visibility
10 statute miles
Lowest ceiling
9,000 ft overcast
Temperature
75 °F, dew point 46 °F
Altimeter
29.64 inHg
Observed at
PATK, 13 nm away

Docket · 1

The files NTSB released with the investigation on November 3, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.7 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.

Other investigations on N8979D · 1

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