CEN12CA042

NTSB accident investigation · Piper PA-18-150 · West Fargo, ND · October 24, 2011

Accident · Minor injuriesData collectionFinal report
Date
October 24, 2011, 17:40 local (22:40 UTC)
Place
West Fargo, ND
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7949Piper PA-18-150
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report December 19, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration - Fargo FSDO
FAA report
20111024030429A
Case key
82173

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

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Probable cause

The pilot's excessive use of brakes during the landing roll before the tailwheel had made sustained contact with the runway.

Findings · 2

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.

Landing gear system: landing gear brakes systemAircraft › Aircraft systems · Incorrect use/operationPiper PA-18-150: 3 casesAll aircraft: 92 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 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 he was practicing a short-field landing in the tailwheel-equipped airplane when the accident occurred. He stated that after touchdown he applied too much brake pressure while the tailwheel was still off the ground and the airplane subsequently nosed over. The airplane came to rest inverted and sustained substantial damage to the firewall, aft fuselage structure, left and right wing struts, and rudder. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded the normal operation of the airplane. He further noted that the accident could have been prevented had he not applied the brakes until the tailwheel had made sustained contact with the runway.

Factual narrative

The pilot reported that he was practicing a short field landing in the tailwheel equipped airplane when the accident occurred. He stated that after touchdown he applied too much brake pressure while the tailwheel was still off the ground and the airplane subsequently nosed-over. The airplane came to rest inverted and the pilot and passenger exited through the main cabin door. The airplane’s firewall, aft fuselage structure, left and right wing struts, and rudder were substantially damaged. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded the normal operation of the airplane. He further noted that the accident could have been prevented had he not applied the brakes until the tailwheel had made sustained contact with the runway.

Aircraft

Registration
N7949
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8882
Airframe hours
25,785
Engine
Lycoming O-360-C4P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Thermo King of Fargo & Isuzu Diesel Midwest, Inc.
Registered owner
Thermo King of Fargo & Isuzu Diesel Midwest, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 19, 2011
Departed
KFAR · Fargo, ND
Destination
NA17 · West Fargo, ND
Airport
NA17 · Jacob Gust Airport, runway 35, 3,000 × 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
35
Injuries
Minor
Certificates
Commercial, Airline transport, Flight instructor
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
August 1, 2011
Seat
Front
Flight hours
6,020 total · 51 in this make and model · 1,386 as pilot in command · 35 in the last 90 days · 9 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 3 knots
Visibility
10 statute miles
Lowest ceiling
10,000 ft overcast
Temperature
54 °F, dew point 32 °F
Altimeter
29.97 inHg
Observed at
KFAR, 5 nm away

Docket · 2

The files NTSB released with the investigation on November 7, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 980 KB 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.