ASN Wikibase Occurrence # 353802
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Date: | Saturday 12 September 1998 |
Time: | 17:55 LT |
Type: | Bell 206B-3 |
Owner/operator: | Brainerd Helicopter Svc., Inc. |
Registration: | N52BH |
MSN: | 1652 |
Year of manufacture: | 1975 |
Total airframe hrs: | 6392 hours |
Engine model: | Allison 250-C20B |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Hinkley, MN -
United States of America
|
Phase: | Initial climb |
Nature: | Unknown |
Departure airport: | , MN (N/A) |
Destination airport: | (N/A) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The pilot of the fire fighting helicopter had just filled the slung water bucket and started to climb. According to the pilot, the helicopter's engine began losing power and rotor RPM as it entered translational lift. The pilot said he jettisoned the water and '...nursed...' the helicopter to the shoreline. During the forced landing the tail rotor struck a steel fence post. The helicopter began to spin and the pilot autorotated to a landing. The engine was test run. The engine's governor differential between pneumatic and governor produced air was 5.7-percent below the low limit. Examination of the governor revealed worn spring ends and spring mounts in the cam follower's lever arm and the spring retainer assembly.
Probable Cause: Loss of engine power due to failure of the engine governor.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | CHI98TA354 |
Status: | Investigation completed |
Duration: | 1 year and 6 months |
Download report: | Final report |
|
Sources:
NTSB CHI98TA354
Location
Revision history:
Date/time | Contributor | Updates |
10-Mar-2024 10:42 |
ASN Update Bot |
Added |
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