SEA01LA047

NTSB accident investigation · Piper PA-12 · Bozeman, MT · February 8, 2001

Accident · No injuriesLimited investigationFinal report
Date
February 8, 2001, 14:20 local (21:20 UTC)
Place
Bozeman, MT
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N7940HPiper PA-12
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2001
Report
Approved by Office Director
Parties
Federal Aviation Administration (Helena FSDO)
FAA report
20010208001119A
Case key
51464

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot rated passenger's failure to maintain directional control during the landing. A factor was the snow berm which the aircraft rolled into during the landing.

Analysis

The pilot rated passenger and prospective buyer of the tailwheel equipped Piper PA-12, was flying the aircraft from the front seat with the owner occupying the rear seat. During a touch-and-go landing the aircraft veered right and then hard left, during which the pilot (passenger) attempted to correct with rudder and the addition of power. The aircraft then ran off the left side of the runway into a snowberm and nosed over. The flying pilot reported 81 hours of flight experience in the PA-12. Calm winds existed at the time of the accident.

Factual narrative

On February 8, 2001, approximately 1420 mountain standard time, a Piper PA-12, N7940H, registered to and operated by a private pilot, and being flown by a commercial pilot, was substantially damaged following a loss of control and nose over during a touch-and-go landing at Gallatin Field, Bozeman, Montana. Both pilots aboard were uninjured. Visual meteorological calm wind conditions existed and no flight plan had been filed. The flight, which was reported to be a pre-sale checkout, was operated under 14CFR91, and originated from Bozeman's Gallatin Field approximately one hour earlier.

The commercially certificated prospective buyer, occupying the front seat, reported that he was executing a touch-and-go landing to runway 12. After a normal approach at 60 miles per hour and full flaps the aircraft touched down. The pilot reported that the aircraft "...veered right, then hard left..." and that he "...attempted to correct with full right rudder... ." He then "...applied full power in an attempt to get [the] acft flying..." and that the aircraft "...left [the] rwy below flying speed, the tires sank into the snow, [the] acft tipped up on the nose & then onto its back...." The pilot reported nearly 81 hours of flight experience in the PA-12 aircraft.

The privately certificated owner, occupying the rear seat, reported that after a touch-and-go landing on runway 12, a second approach and landing was executed. The owner reported that on the second landing "...we initially were pointed too far right and I believe Ed over-corrected and ended up pointing left toward the edge of the runway. Ed added power to go around and tried to take off before we ran off the left side of the runway. We didn't get off the ground before hitting the edge of the runway (and fairly deep snow) and the snow slowed us down and then stopped us causing the airplane to roll over forward and upside down...."

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - on ground/waterLanding - roll
Directional control - not maintainedPilot passengerCause
Nose overLanding - roll
Terrain condition - snowbankFactor

Aircraft

Registration
N7940H
Reported as
Piper PA-12
Category
Airplane
Serial number
12-844
Airframe hours
7,300
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Chandler, Douglas S.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · September 1, 2000 · 20 hours before
Departed
BZN · Bozeman, MT
Airport
BZN · Gallatin Field, runway 12, 9,003 × 150 ft, asphalt

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
61
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
November 15, 2000
Seat
Front
Flight hours
1,258 total · 81 in this make and model · 1,221 as pilot in command
Role
Other flight crew
Injuries
None

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
1 °F, dew point -8 °F
Altimeter
30.04 inHg
Observed at
BZN

FAA reports on this event · 1

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