- Date
- August 28, 2011, 06:20 local (13:20 UTC)
- Place
- Grangeville, ID
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N1238DCessna 170A
- Defining event
- Initial climb: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 3, 2011
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- FAA report
- 20110828018939A
- Case key
- 81613
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 loss of directional control for undetermined reasons.
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.
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 of the single-engine airplane stated that he took off from the remote grass airstrip, which had 80-foot-tall pine trees along both sides. Shortly after takeoff the pilot heard a bang and the airplane veered right. The pilot tried to correct the flight path; however, the airplane descended and impacted pine trees about 300 feet east of the departure end of the airstrip. The pilot was able to extract himself from the cockpit before the airplane was consumed by a postaccident fire. A Federal Aviation Administration inspector and the county sheriff inspected the control cables of the airplane and found them all to be connected and continuous between the flight control surfaces and the cockpit controls.
Factual narrative
The pilot of the single engine airplane stated that he took off from the remote grass airstrip, which had 80-foot-tall pine trees along both sides of the air strip. Shortly after takeoff the pilot heard a bang and the airplane veered right. The pilot tried to correct the flight path, however, the airplane descended and impacted pine trees about 300 feet east of the departure end of the airstrip. The pilot was able to extract himself from the cockpit before the airplane was consumed by a post accident fire. A Federal Aviation Administration inspector and the county sheriff inspected the control cables of the airplane and found them all connected and continuous between the flight control surfaces and the cockpit controls.
Aircraft
- Registration
- N1238D
- Reported as
- Cessna 170A
- Category
- Airplane
- Serial number
- 19792
- Airframe hours
- 4,389
- Engine
- Lycoming O-360-A1A, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Fire
- On-Ground
- Flight
- Personal · Part 91
- Operator
- Bokk John
- Registered owner
- Bokk John
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · March 12, 2011 · 5 hours before
- Departed
- 37ID · Grangeville, ID
- Destination
- 37ID · Grangeville, ID
- Airport
- 37ID · Hungry Ridge Ranch Airport, runway 36, 1,680 × 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
- 74
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Last flight review
- January 18, 2011
- Seat
- Left
- Flight hours
- 580 total · 580 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 63 °F, dew point 46 °F
- Altimeter
- 30.07 inHg
- Observed at
- KGIC, 12 nm away
Docket · 6
The files NTSB released with the investigation on October 3, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.3 MB 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.