ASN Wikibase Occurrence # 363415
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| Date: | Thursday 25 June 1992 |
| Time: | 08:00 LT |
| Type: | Dennis L. Fetters MINI 500 |
| Owner/operator: | Private |
| Registration: | N500ZZ |
| MSN: | 0000 |
| Total airframe hrs: | 4 hours |
| Engine model: | ROTAX 582 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Missouri City, MO -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PILOT OF THE ACCIDENT HELICOPTER WAS PERFORMING TEST FLIGHTS USING VARIOUS FLIGHT ATTITUDES TO CHANGE AIRFLOW PATTERNS THROUGH THE ENGINE COMPARTMENT WHEN THE ENGINE LOST POWER. THE PILOT STATED HE WAS TOO FAST AND TOO LOW TO COMPLETE A SMOOTH LANDING. DURING TOUCHDOWN THE HELICOPTER LANDED HARD AND SUSTAINED SUBSTANTIAL DAMAGE. POST ACCIDENT INSPECTION OF THE ENGINE REVEALED THE BORE DIAMETER ON THE CONNECTING ROD WAS INCORRECT WHERE IT ATTACHES TO THE CRANKSHAFT.
Probable Cause: AN IMPROPER CONNECTING ROD ASSEMBLY RESULTING IN MECHANICAL BINDING BETWEEN THE ROD AND THE ENGINE CRANKSHAFT.
Accident investigation:
 |
|
Sources:
NTSB CHI92DCG04
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 18-Mar-2024 17:03 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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