- Date
- June 21, 1984, 17:00 local (22:00 UTC)
- Place
- Oklahoma City, OK
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N9124FHughes 369HS
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- FAA report
- 19840621062599A
- Case key
- 21378
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
While performing a practice autorotation plt failed to bring in power in time to arrest the high rate of descent. The helicopter touched down hard and the main rotor blades flexed downward striking the tail boom and severing it. The plt stated his failure to add power was due to his being fatigued. The pilot had flown eight hours the day of the accident and stated it was extremely hot that day.
Aircraft
- Registration
- N9124F
- Reported as
- Hughes 369HS
- Category
- Helicopter
- Serial number
- 520383S
- Airframe hours
- 2,800
- Engine
- Allison 250-C20, 278 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Registered owner
- Sawyer International Inc.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · June 15, 1984
- Airport
- Clarence E. Page
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 42
- Certificate
- Private
- Airplane ratings
- Single-engine land, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Flight hours
- 2,250 total · 26 in this make and model · 2,000 as pilot in command · 45 in the last 90 days · 8 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 190° at 12 knots
- Lowest ceiling
- None
- Temperature
- 91 °F, dew point 63 °F
- Altimeter
- 29.00 inHg
- Observed at
- OKC
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.