Accident Bell 47G-3B-1 N7901S,
ASN logo
ASN Wikibase Occurrence # 354874
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Date:Thursday 15 January 1998
Time:17:30 LT
Type:Silhouette image of generic B47G model; specific model in this crash may look slightly different    
Bell 47G-3B-1
Owner/operator:Desert Eagle Helicopters Inc.
Registration: N7901S
MSN: 6576
Total airframe hrs:3293 hours
Engine model:Lycoming TVO-435-B1A
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Magdalena, NM -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Magdalena, NM
Destination airport:
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The helicopter was being used in the Federal Government's predator control program. The pilot said he and his passenger were flying north and entered a draw. The prey they were chasing (a coyote) turned east and they flew over it at low airspeed and altitude. The pilot was having 'trouble maintaining rotor rpm.' With higher terrain in front and to his left, he elected to turn east in hopes of exiting the draw to the south. Trees and rough terrain forced him to continue eastward. The pilot found himself below a draw and he pulled collective control. This aggravated the low rpm condition, but the helicopter cleared the rim. On the other side of the rim, the ground sloped down at a 40 degree angle and the pilot tried to stretch his descent towards flatter terrain in an attempt to make a run-on landing. The helicopter impacted the terrain and was substantially damaged. The FAA inspector who went to the scene wrote, 'There is no apparent reason for the helicopter to have lost rpm. Review of the pilot records indicate only 14 hours of flight time in the last 90 days and no training in the last three years, and the last biennial flight review was almost 20 months ago.'

Probable Cause: The pilot's failure to maintain adequate main rotor rpm. A factor was a lack of recent experience in the type of operation being performed.

Accident investigation:
Investigating agency: NTSB
Report number: FTW98TA099
Status: Investigation completed
Duration: 3 years 1 month
Download report: Final report



History of this aircraft

Other occurrences involving this aircraft
17 July 1976 N7901S Shasta Helicopter 2 Petersburg, AK w/o


Revision history:

11-Mar-2024 19:18 ASN Update Bot Added

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2024 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314