- Date
- September 3, 2010, 18:30 local (Sep 4, 2010, 02:30 UTC)
- Place
- Tuluksak, AK
- Injuries
- 1 serious, 2 minor
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N9942MCessna 207A
- Defining event
- Takeoff: Collision during takeoff/land
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 11, 2011
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- Parties
- FAA FSDO-03
- FAA report
- 20100903047499A
- Case key
- 77235
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 delayed application of full power during a soft/wet field takeoff, resulting in a collision with trees during takeoff.
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.
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 director of operations for the operator stated that soft field conditions and standing water on the runway slowed the airplane during the takeoff roll. The airplane did not lift off in time to clear trees at the end of the runway and sustained substantial damage to both wings and the fuselage when it collided with the trees. The pilot reported that he used partial power at the beginning of the takeoff roll to avoid hitting standing water on the runway with full power. After passing most of the water, he applied full power, but the airplane did not accelerate like he thought it would. He recalled the airplane being in a nose-high attitude and the main wheels bouncing several times before the airplane impacted the trees at the end of the runway.
Factual narrative
On September 3, 2010, about 1830 Alaska daylight time, a Cessna 207A airplane sustained substantial damage during a collision with trees while taking off at the Tuluksak Airport, Tuluksak, Alaska. The airplane was operated by Grant Aviation Inc., Anchorage, Alaska, as a visual flight rules on-demand passenger flight under Title 14, Code of Federal Regulations Part 135, when the accident occurred. The airline transport pilot received serious injuries, and the two passengers received minor injuries. Visual meteorological conditions prevailed, and company flight following procedures were in effect. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on September 4, the director of operations for the operator said it appeared that soft field conditions and standing water on the runway prevented the airplane from accelerating fast enough to lift off in time to clear trees at the end of the runway. He said the airplane came to rest off the end of the runway in the trees, and sustained substantial damage to both wings and the fuselage. In a written statement to the NTSB dated September 10, the pilot wrote that he did not apply full power at the beginning of the takeoff roll in order to avoid hitting standing water on the runway at full power. He said he applied full power after passing the puddles, but the airplane did not accelerate as he thought it would. He said he recalled the nose of the airplane being in a nose-high attitude, and the main wheels bouncing several times before the airplane impacted trees at the end of the runway.
Aircraft
- Registration
- N9942M
- Reported as
- Cessna 207A
- Category
- Airplane
- Serial number
- 20700756
- Airframe hours
- 29,550
- Engine
- Cont Motor IO-520-F, 300 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Grant Aviation Inc, doing business as Grant Aviation
- Registered owner
- Alaska Aircraft Leasing LLC
- Airworthiness certificate
- Standard, Normal
- Last inspection
- AAIP · August 10, 2010
- Departed
- TLT · Tuluksak, AK
- Flight plan
- Company VFR
- Airport
- TLT · Tuluksak, runway 20, 2,461 × 30 ft, gravel
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
- 34
- Injuries
- Serious
- Certificates
- Airline transport, Flight instructor
- Airplane ratings
- Multi-engine land, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 1, With waivers/limitations
- Last flight review
- April 26, 2010
- Seat
- Left
- Flight hours
- 4,545 total · 245 in this make and model · 4,365 as pilot in command · 188 in the last 90 days · 83 in the last 30 days · 7 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 94° at 8 knots
- Visibility
- 8 statute miles
- Lowest ceiling
- 1,700 ft broken
- Temperature
- 52 °F, dew point 50 °F
- Altimeter
- 29.57 inHg
- Observed at
- PABE, 31 nm away
Docket · 1
The files NTSB released with the investigation on February 22, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 464 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.