ASN Wikibase Occurrence # 353887
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: | Sunday 23 August 1998 |
| Time: | 17:00 LT |
| Type: |  Bell 47G-4A |
| Owner/operator: | Private |
| Registration: | N7162M |
| MSN: | 7569 |
| Year of manufacture: | 1967 |
| Total airframe hrs: | 7065 hours |
| Engine model: | Lycoming VO-540-B1B3 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Carrollton, AL -
 United States of America
|
| Phase: | En route |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot stated he was in cruise flight at about 75 feet over trees after completing a swath run when the engine quit. He started a right turn before he entered autorotation, and did not monitor the engine or rotor rpm. He started a deceleration at about 30 feet and pulled all collective pitch. The helicopter collided with the ground hard, and the main rotor blades collided with the tailboom assembly. Examination of the engine assembly revealed 10 of 22 circlips were installed incorrectly during engine overhaul resulting in the subsequent failure of the number 5 connecting rod.
Probable Cause: The pilots failure to follow written instructions in the flight manual for an engine failure, and the improper use of flight controls (cyclic/collective) during an autorotation resulting in a hard landing, and collision of the main rotor blades with the tailboom assembly. Contributing to the accident was the improper installation of circlips on the counterweight assembly during an engine overhaul. This resulted in a subsequent total failure of the number 5 connecting rod.
Accident investigation:
 |
|
Sources:
NTSB MIA98FA229
History of this aircraft
Other occurrences involving this aircraft
| 3 February 1970 | ZK-HDD | Helicopters (NZ) Ltd | Kaikoura Range, Canterbury |  |
unk | |
| 2 September 1978 | ZK-HDD | Helicopters (NZ) Ltd | 0 | Opotiki, Bay of Plenty 3 | |
unk |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 10-Mar-2024 16:38 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation