ASN Wikibase Occurrence # 43512
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| Date: | Wednesday 20 July 1983 |
| Time: | 15:22 |
| Type: |  Aero Commander 685 |
| Owner/operator: | Technical Computer Services |
| Registration: | N3711T |
| MSN: | |
| Total airframe hrs: | 1509 hours |
| Engine model: | CONTINENTAL GTSIO-520-K-1 |
| Fatalities: | Fatalities: 6 / Occupants: 6 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Cleveland, OH -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Executive |
| Departure airport: | Akron, OH (CAK) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE TURNING FROM DOWNWIND TO BASE LEG, THE ACFT WAS OBSERVED DESCENDING RAPIDLY IN A STEEP BANK. WITNESSES REPORTED SMOKE WAS TRAILING FROM THE ACFT. THE ACFT CRASHED IN AN INDUSTRIAL AREA. AN EXAM OF THE RIGHT ENG REVEALED THAT THE EXHAUST-TO-TURBO ADAPTER, PN 641829, HAD FRACTURED & SEPARATED. THE FRACTURE WAS A RESULT OF THERMAL FATIGUE & IT HAD PROPAGATED ACROSS MORE THAN 95% OF THE AREA BEFORE FINAL SEPARATION HAD OCCURRED. SINCE AN EXAM OF THE COWLING & BOTH ENGINES SHOWED NO STREAKING HEAT OR SMOKE PATTERNS, THE REPORTED 'SMOKE' WAS ATTRIBUTED TO EXHAUST GAS. WHILE THERE WAS A LOSS OF POWER IN THE RIGHT ENG, NO OTHER ACFT MALFUNCTIONS WERE FOUND THAT WOULD HAVE CAUSED LOSS OF CONTROL. CAUSE:
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X43642
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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