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Aviation safety reports, made easier to study

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NTSB Report

July 22, 1997 · Bell 47G-3B1 · N3069G

Idaho Falls, ID

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 22, 1997
Injury Outcomes
No injuries (1 uninjured)
Location
Idaho Falls, ID
Aircraft
Bell 47G-3B1
Tail Number
N3069G
Operator
Wood Milton H
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA97LA174

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.

NTSB 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.

Full 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.

Flight

Event TypeAccident
Event Time08:13 MDT
Nearest AirportIdaho Falls/Fanning Field (1nm SW)
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell 47G-3B1
Tail NumberN3069G
Aircraft CategoryHeli
DamageSubstantial
OperatorWood Milton H
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · TVO-435 · Reciprocating · 270
Seats3

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 51 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind340° @ 4 kt
Visibility60 sm
CeilingNone
Temperature / Dew Point57 / 52
Altimeter30.00 inHg
Observation Time13:46
Weather SourceWFAC

Appendix: Source Data