- Date
- March 4, 1984, 10:45 local (14:45 UTC)
- Place
- Glennallen, AK
- Injuries
- 4 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N5051FFairchild Hiller FH-100
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- NTSB office
- Alaska Regional Office
- FAA report
- 19840304005469A
- Case key
- 4271
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 experienced a downdraft, while approaching a glacier at 5500 ft MSL. In turning downgrade to try to affect a descent of the acft, control was lost and the helicopter collided with the ground. The acft rolled inverted after ground contact.
Aircraft
- Registration
- N5051F
- Reported as
- Fairchild Hiller FH-100
- Category
- Helicopter
- Serial number
- 197
- Airframe hours
- 4,598
- Engine
- Allison 250-C18, 274 horsepower, turbo shaft
- Damage
- Substantial damage
- Flight
- Part 135
- Operator
- Gulkana Air Service
- Registered owner
- Kenneth Bunch
- Airworthiness certificate
- Standard, Normal
- Last inspection
- 100 hour · May 31, 1983 · 60 hours before
- Departed
- GKN · Glennallen, AK
- Flight plan
- VFR
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
- 52
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Single-engine sea, Multi-engine land
- Instrument ratings
- Airplane
- Medical
- Class 2, Valid Medical--no waivers/lim.
- Seat
- Right
- Flight hours
- 7,300 total · 200 in this make and model · 6,900 as pilot in command · 12 in the last 90 days · 6 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 20 knots, gusting 30
- Visibility
- 40 statute miles
- Lowest ceiling
- 7,000 ft overcast
- Temperature
- 19 °F, dew point 1 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.