- Date
- July 22, 1997, 08:13 local (14:13 UTC)
- Place
- Idaho Falls, ID
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N3069GBell 47G-3B1
- Weather
- Visual (VMC) · Day
- Status
- Completed · report November 6, 1998
- Report
- Approved by Office Director
- FAA report
- 19970722019469A
- Case key
- 42663
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 pilot-in-command's failure to verify the proper chemical and fuel load aboard prior to takeoff. Factors contributing to the accident were: excessive fuel and chemical loading by ground personnel, tailwind conditions, and high density altitude.
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 requested 15 gallons of fuel and 30 gallons of fungicide prior to takeoff, but was fueled with 40 gallons of fuel and 40 gallons of chemical by his ground crew. He then lifted off with a tailwind during which the rotorcraft settled to the ground, the right skid collapsed and the tailboom separated. The density altitude was approximately 5,500 feet.
Factual narrative
On July 22, 1997, approximately 0813 mountain daylight time, a Bell 47G-3B1, N3069G, registered to Ralph and Dina Reynold, and being operated/flown by a commercial pilot doing business as Eagle Aviation, was substantially damaged during an inflight collision with terrain while taking off from a site slightly northwest of the approach end of runway 02 at Fanning Field, Idaho Falls, Idaho. The pilot was uninjured. Visual meteorological conditions existed and no flight plan had been filed. The flight, which was to have been an aerial application, was to have been operated under 14CFR137.
The pilot reported to the Investigator in Charge that he requested 15 gallons of fuel prior to takeoff, but was fueled with 40 gallons of fuel by ground personnel. Additionally, he requested 30 gallons of spray chemical, but was loaded with 40 gallons by ground personnel. He also reported a tailwind upon takeoff.
The pilot reported to an Inspector from the Federal Aviation Administration's Salt Lake City Flight Standards District Office that he departed downwind with a full load of fungicide during which the helicopter settled to the ground, the right skid collapsed, and the tailboom separated. The pilot reported to the inspector that there were no mechanical problems with the rotorcraft.
The pilot commented in the "Recommendation" section of NTSB Form 6120.1/2 (How could this accident have been prevented): "The loading crew paying more att(ention) and me as a pilot making sure they did what I asked."
Density altitude at Fanning Field at 0746 on the morning of the accident was approximately 5,466 feet.
Aircraft
- Registration
- N3069G
- Reported as
- Bell 47G-3B1
- Category
- Helicopter
- Serial number
- 3376
- Airframe hours
- 5,851
- Engine
- Lycoming TVO-435, 270 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Aerial application · Part 137
- Operator
- Wood, Milton, H., doing business as Eagle Aviation
- Registered owner
- Reynolds, Ralph & Dina
- Airworthiness certificate
- Special, Restricted (Special)
- Airport
- IDA · Idaho Falls/Fanning Field
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
- 51
- Certificate
- Commercial
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Helicopter, Airplane
- Medical
- Class 2, Valid Medical--w/ waivers/lim
- Seat
- Left
- Flight hours
- 12,000 total · 1,200 in this make and model · 365 in the last 90 days · 100 in the last 30 days · 10 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 340° at 4 knots
- Visibility
- 60 statute miles
- Lowest ceiling
- None
- Temperature
- 57 °F, dew point 52 °F
- Altimeter
- 30.00 inHg
- Observed at
- IDA, 1 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.