ASN Wikibase Occurrence # 36377
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| Date: | Wednesday 21 June 1989 |
| Time: | 08:23 |
| Type: |  Piper PA-60-601P |
| Owner/operator: | Aero Star Transport Corp |
| Registration: | N83AT |
| MSN: | 61P0296074 |
| Total airframe hrs: | 1454 hours |
| Fatalities: | Fatalities: 3 / Occupants: 3 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Lithia Springs , GA -
 United States of America
|
| Phase: | En route |
| Nature: | Executive |
| Departure airport: | Atlanta, GA (PDK) |
| Memphis, TN (MEM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ELEVEN MINUTES AFTER DEPARTURE THE PILOT REPORTED SMOKE AND A RIGHT ENGINE PROBLEM, THEN SAID 'GOING DOWN'. RIGHT WING AND ENGINE ASSEMBLIES SEPARATED IN FLIGHT. FIRE DAMAGE VICINITY OF RIGHT ENGINE LEFT TURBOCHARGER; TAILPIPE ASSEMBLY HAD SEPARATED. HEAVY SMOKE & HEAT DAMAGE BETWEEN RIGHT WING FORWARD & AFT WING SPARS. TAILPIPE HAD FAILED IN FATIGUE NEAR FLANGE WHERE ATTACHED TO TURBOCHARGER EXHAUST PORT. EVIDENCE OF NON-UNIFORMLY SEATED GASKET BETWEEN FLANGES. ALSO, RIGHT ENGINE LOWER LEFT ENGINE MOUNT DETERIORATED; SIGNIFICANT PORTION OF RUBBER MISSING. PIPER SB #818 (AD87-07-09) ACCOMPLISHED 5/21/88; REQUIRES REMOVAL & INSPECTION OF EXHAUST SYSTEM FOR CRACKS AND REINSTALLATION WITH NEW FLANGE GASKETS. CAUSE: INFLIGHT ENGINE/WING FIRE DUE TO A FAILURE OF THE RIGHT ENGINE'S LEFT EXHAUST TAILPIPE. THE EXHAUST TAILPIPE FAILED IN FATIGUE AS A RESULT OF FLUCTUATING STRESSES INDUCED BY A DETERIORATED ENGINE MOUNT IN CONJUNCTION WITH UNEVENLY DISTRIBUTED CLAMPING LOADS CAUSED BY AN IMPROPERLY SEATED GASKET.
Sources:
NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001213X28486
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
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