- Date
- August 25, 1988, 12:10 local (17:10 UTC)
- Place
- Sallisaw, OK
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Taxi
- Aircraft
- N2264UBrantly Helicopter B-2B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report January 24, 1990
- Report
- Approved by Office Director
- FAA report
- 19880825035249A
- Case key
- 22675
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
Acft experienced a hard landing and rolled over following a loss of control in a hover. Plt delayed cutting the throttle in order to clear a ditch. Investigation revealed that the tail rotor driveshaft coupling retaining screw had separated. The separation allowed a disconnect in the tail rotor driveshaft and loss of tail rotor drive. The reason for the screw failure was not determined. Acft had just been returned to service following extensive repairs for damage sustained in a previous hard landing.
Aircraft
- Registration
- N2264U
- Reported as
- Brantly Helicopter B-2B
- Category
- Helicopter
- Serial number
- 426
- Airframe hours
- 2,983
- Engine
- Lycoming VIO-360-A1A, 180 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Robert D. Terrill
- Registered owner
- Terrill, Robert D
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · February 9, 1988 · 31 hours before
- Departed
- 2M3
- Destination
- 2M3
- Airport
- 2M3 · Sallisaw Muni
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
- 43
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Front
- Flight hours
- 1,740 total · 1,055 as pilot in command · 22 in the last 90 days · 12 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 350° at 4 knots
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 93 °F, dew point 64 °F
- Altimeter
- 29.00 inHg
- Observed at
- FSM
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 N2264U · 4
Matched to the same aircraft by N-number and date.