- Date
- June 30, 1986, 06:10 local (13:10 UTC)
- Place
- Le Grand, CA
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N64789Bell UH-1B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report February 3, 1988
- Report
- Approved by Office Director
- Case key
- 24962
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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 helicopter experienced an engine failure shortly after lift-off prior to a spray run on a nearby field. The engine decelerated to zero and the acft collided with the ground. Examination of the engine revealed the turbine rotor was destroyed and evidence of overspeed and tension overload was found.
Aircraft
- Registration
- N64789
- Reported as
- Bell UH-1B
- Category
- Helicopter
- Serial number
- 62-4598
- Airframe hours
- 5,163
- Engine
- Lycoming T5311A, 900 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Registered owner
- Rogers Helicopters
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- 100 hour · February 1, 1986 · 80 hours before
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
- Certificates
- Commercial, Flight instructor
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 9,475 total · 3,025 in this make and model · 9,275 as pilot in command · 53 in the last 90 days · 5 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F, dew point -0 °F
Other investigations on N64789 · 1
Matched to the same aircraft by N-number and date.