- Date
- September 7, 1991, 08:00 local (12:00 UTC)
- Place
- Immokalee, FL
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N7573Bell 47G2A
- Weather
- Visual (VMC) · Day
- Status
- Completed · report July 13, 1993
- Report
- Approved by Office Director
- FAA report
- 19910907044469A
- Case key
- 32922
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 improper use of the flight controls by the pilot in command, which resulted in a collision with the ground and a nose over.
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 pilot stated that after initiating takeoff he noted the rotor RPM decreasing. He stated that he attempted to increase the RPM by applying aft cyclic control which had no effect. The helicopter then settled to the grass skidded forward and nosed over.
Aircraft
- Registration
- N7573
- Reported as
- Bell 47G2A
- Category
- Helicopter
- Serial number
- 2413
- Airframe hours
- 7,219
- Engine
- Lycoming VO-435-A1FHC, 260 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Airwork Enterprises Of Florida
- Registered owner
- Airwork Enterprises Of Florida
- Airworthiness certificate
- Special, Restricted (Special)
- Last inspection
- Annual · May 1, 1991 · 133 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
- 53
- Certificates
- Flight instructor, Commercial
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 9,300 total · 3,100 in this make and model · 9,010 as pilot in command
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Calm
- Visibility
- 5 statute miles
- Lowest ceiling
- None
- Temperature
- 77 °F, dew point 75 °F
- Altimeter
- 30.00 inHg
- Observed at
- FMY, 24 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.