- Date
- September 6, 2005, 12:00 local (20:00 UTC)
- Place
- Fairbanks, AK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N1907APiper PA-18
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 20, 2005
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 20050906022439A
- Case key
- 62444
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 pilot's failure to maintain adequate airspeed during takeoff initial climb, which resulted in an inadvertent stall/mush, and subsequent in-flight collision with trees. A factor contributing to the accident was a tailwind.
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.
Analysis
The private certificated pilot was departing to the north, and downhill, from a one-way landing area, about 2,000 feet msl. The area, oriented north/south, was about 400 feet long, and about 15 feet wide. The pilot indicated that he began the takeoff roll with one notch of flaps selected. The airplane lifted off and climbed to about 40 feet agl. He reported that due to what he believed to be a tailwind, the tail of the airplane felt as if it was pushed downward, raising the nose of the airplane. He lowered the nose to prevent a stall, and began raising the flaps. The airplane collided with spruce trees about 200 yards from the takeoff area, and received damage to the landing gear, stabilizer, both wings and wing lift struts.
Factual narrative
On September 6, 2005, about 1200 Alaska daylight time, a tundra tire-equipped Piper PA-18 airplane, N1907A, sustained substantial damage when it collided with trees during takeoff initial climb from a remote area, about 45 miles south-southeast of Fairbanks, Alaska. The airplane was being operated as a visual flight rules (VFR) local area personal flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot. The private certificated pilot, and the sole passenger, were not injured. Visual meteorological conditions prevailed. No flight plan was filed, nor was one required.
During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on September 6, the pilot's mechanic reported that the airplane had crashed, and the pilot was remaining in the field until the airplane was recovered. On September 13, the pilot telephoned the NTSB IIC, and reported that he was departing to the north, and downhill, from a one-way landing area, about 2,000 feet msl. The area, oriented north/south, was about 400 feet long, and about 15 feet wide. He said that after the engine run-up, he began the takeoff roll with one notch of flaps selected. The airplane lifted off and climbed to about 40 feet agl, with the engine rpm indicating about 2,700.
The pilot reported that due to what he believed to be a tailwind, the tail of the airplane felt as if it was pushed downward, raising the nose of the airplane. He lowered the nose to prevent a stall, and began raising the flaps. The airplane collided with spruce trees about 200 yards from the takeoff area, and received damage to the landing gear, stabilizer, both wings and wing lift struts.
Aircraft
- Registration
- N1907A
- Reported as
- Piper PA-18
- Category
- Airplane
- Serial number
- 18-1741
- Engine
- Lycoming O-320-A2B, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- James Knopke
- Airworthiness certificate
- Standard, Normal
- Departed
- Fairbanks, 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
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 49
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3
- Flight hours
- 216 total · 212 in this make and model · 30 in the last 90 days · 25 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
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 N1907A · 1
Matched to the same aircraft by N-number and date.