ASN Wikibase Occurrence # 365151
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| Date: | Wednesday 12 June 1991 |
| Time: | 05:00 LT |
| Type: |  de Havilland Canada DHC-6 twin Otter 300 |
| Owner/operator: | Corporate Air, Inc. |
| Registration: | N242CA |
| MSN: | 342 |
| Year of manufacture: | 1972 |
| Engine model: | P&W PT6-27 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Denver, CO -
 United States of America
|
| Phase: | Standing |
| Nature: | Executive |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AT DAWN, THE PILOT AND A MECHANIC WENT OUT TO PREFLIGHT THE AIRCRAT AND THEN FLY IT ON A LOCAL MAINTENANCE TEST FLIGHT. THE HYDRAULIC SYSTEM CIRCUIT BREAKER WAS NOT 'IN' WHEN THE AIRCRAFT ENGINES WERE STARTED. AS THE RIGHT ENGINE RPM BEGAN TO INCREASE, THE AIRCRAFT STARTED TO MOVE FORWARD. THE PILOT APPLIED THE BRAKES ONLY TO DISCOVER THERE WAS NO HYDRAULIC PRESSURE IN THE BRAKE LINES. BEFORE CORRECTIVE ACTION COULD BE TAKEN, THE AIRCRAFT STRUCK A PARKED AIRCRAFT.
Probable Cause: THE PILOT'S FAILURE TO PERFORM AN ADEQUATE PREFLIGHT, I.E., NOT FOLLOWING THE CHECK LIST AND THE NORMAL BRAKE SYSTEM WAS INOPERATIVE AS A RESULT OF NO HYDRAULIC SYSTEM PRESSURE (HYDRAULIC SYSTEM CIRCUIT BREAKER NOT 'IN').
Accident investigation:
 |
|
Sources:
NTSB DEN91LA082
History of this aircraft
Other occurrences involving this aircraft
| 12 April 1997 | N242CA | Corporate Air | 0 | 117 km NE off Hilo, HI, USA |  |
w/o |
| Ditching | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 20-Mar-2024 07:10 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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