- Date
- September 30, 1987, 12:30 local (18:30 UTC)
- Place
- Grand Junction, CO
- Injuries
- 1 minor
- Damage
- Destroyed
- Phase of flight
- Maneuvering
- Aircraft
- N7806SBell 47G-3B1
- Weather
- Visual (VMC) · Day
- Status
- Completed · report October 7, 1988
- Report
- Approved by Office Director
- FAA report
- 19870930058689A
- Case key
- 17318
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 plt was practicing some helicopter maneuvers in preparation for taking an FAA flt examination. During one of his maneuvers the helicopter's main rotor blades struck the ground causing the acft to crash. A post accident fire errupted and destroyed the helicopter.
Aircraft
- Registration
- N7806S
- Reported as
- Bell 47G-3B1
- Category
- Helicopter
- Serial number
- 6607
- Airframe hours
- 7,748
- Engine
- Lycoming TVO-435-B1A, 270 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Brian D. Armentrout
- Registered owner
- Geophysical Survey Co.
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · July 2, 1987 · 6 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
- 24
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 152 total · 79 in this make and model · 91 as pilot in command · 5 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- Variable at 2 knots
- Visibility
- 90 statute miles
- Lowest ceiling
- None
- Temperature
- 79 °F, dew point 34 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.