- Date
- August 11, 2007, 13:30 local (21:30 UTC)
- Place
- McGrath, AK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N7051Piper PA-18
- Weather
- Visual (VMC) · Day
- Status
- Completed · report April 30, 2008
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- Parties
- Federal Aviation Administration
- FAA report
- 20070811022679A
- Case key
- 66433
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 NTSB’s determination of the probable cause, and any contributing factors.
The pilot's failure to maintain control of the airplane during the landing roll. Contributing to the accident was rough and uneven terrain conditions.
Analysis
An Alaska State Trooper pilot was landing a tundra-tire equipped airplane on a 1,500-foot long rough gravel site. During the landing roll, the pilot said he applied the brakes and pushed the elevator control stick forward in an attempt to dampen the effects of the rough terrain. In his written statement to the NTSB, the pilot wrote, in part: "Too much forward stick was applied, causing the aircraft to roll onto its nose, striking the prop and spinner and eventually coming to rest upside-down." The airplane sustained substantial damage to the vertical stabilizer and right wing. The pilot said that there were no preaccident mechanical problems with the airplane.
Factual narrative
On August 11, 2007, about 1330 Alaska daylight time, a tundra tire-equipped Piper PA-18 airplane, N7051, sustained substantial damage when it nosed over during the landing roll at an off-airport site, about 58 miles southwest of McGrath, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country government-operated flight under Title 14, CFR Part 91, when the accident occurred. The State of Alaska, Department of Public Safety, Fish and Wildlife Service, operated the airplane. The sole occupant, an Alaska State Trooper who held a private pilot certificate, was not injured. Visual meteorological conditions prevailed, and company flight following procedures were in effect.
According to the pilot's written statement included in the NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1) submitted by the operator, the pilot reported that he was landing at a 1,500-foot long gavel-covered site, at the conclusion of a routine aerial game patrol. The pilot stated that during the landing roll, he applied the airplane's brakes in conjunction with moving the elevator control stick forward, in an attempt to dampen the effects of the rough and uneven terrain. The pilot wrote, in part: "Too much forward stick was applied, causing the aircraft to roll onto its nose, striking the prop and spinner and eventually coming to rest upside-down." The airplane sustained substantial damage to the vertical stabilizer and right wing. The pilot indicated that there were no preaccident mechanical anomalies with the airplane.
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.
Aircraft
- Registration
- N7051
- Reported as
- Piper PA-18
- Category
- Airplane
- Serial number
- 18-2932
- Airframe hours
- 13,449.1
- Engine
- Lycoming O-320-B2B, 160 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Public aircraft - state · Part 91
- Registered owner
- State of Alaska, Department of Public Safety
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · June 1, 2007 · 34.3 hours before
- Departed
- McGrath, AK
- Destination
- Farewell, AK
- Flight plan
- Company VFR
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
- 39
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 2, With waivers/limitations
- Last flight review
- March 1, 2007
- Seat
- Front
- Flight hours
- 412 total · 118 in this make and model · 369 as pilot in command · 57 in the last 90 days · 13 in the last 30 days · 6 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F
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 N7051 · 4
Matched to the same aircraft by N-number and date.