ASN Wikibase Occurrence # 378968
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| Date: | Sunday 15 July 1984 |
| Time: | 15:30 LT |
| Type: |  Hiller UH-12E |
| Owner/operator: | San Francisco & Fesno Land Co |
| Registration: | N4030A |
| MSN: | 5147 |
| Total airframe hrs: | 1602 hours |
| Engine model: | Lycoming VO-540-02 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Orcutt, CA -
 United States of America
|
| Phase: | Taxi |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
MAINTENANCE HAD JUST BEEN PERFORMED & THE CREW WERE BEGINNING A TEST FLT TO CHECK THE TRACKING OF THE MAIN ROTOR BLADES. WHILE THE PLT WAS HOVER TAXIING, HE LOST COLLECTIVE CONTROL & ROTOR RPM DECREASED. HOWEVER, HE WAS ABLE TO MAKE A ROLL-ON LANDING, BUT THE HELICOPTER ROLLED OVER & WAS DAMAGED. AN EXAM OF THE LOWER COLLECTIVE CENTER CONTROL HOUSING DISCLOSED THAT THE TERMINAL PIN WAS PLACED THRU THE OUTER HOUSING, BUT WAS INSTALLED BENEATH THE TERMINAL TEE RATHER THAN THRU THE TEE. THE MANUAL EMPHASIZES THAT THE PIN MUST PASS THRU THE TERMINAL TEE. THE MANUAL HAD NO PROVISIONS TO ASCERTAIN THAT THE PIN HAD BEEN INSTALLED THRU THE TERMINAL TEE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB LAX84FA395
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 31-Mar-2024 14:18 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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