ASN Wikibase Occurrence # 41263
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| Date: | Saturday 18 July 1998 |
| Time: | 13:00 LT |
| Type: |  Commander Aircraft 114TC |
| Owner/operator: | Cazier Excavation, Inc. |
| Registration: | N61174 |
| MSN: | 20014 |
| Year of manufacture: | 1997 |
| Total airframe hrs: | 343 hours |
| Engine model: | Lycoming TIO-540-AG1A |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | West Jordan, UT -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Salt Lake City, UT (U42) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot had washed the airplane and said he was going to 'take it around the pattern.' Shortly after takeoff, witnesses heard the engine backfire, heard a muffled explosion, and saw flames and smoke coming from the engine area. The engine was 'sputtering' as the airplane descended and collided with terrain in a residential area. The stainless steel shroud around the turbocharger was scorched and discolored. The main fuel line showed signs of high heat distress, but had not been breached except where it attached to the separated engine.. The exhaust pipe was separated from the turbocharger, and the clamp that held it in place was broken. According to the metallurgist's factual report, there was a brittle transverse fracture of the circumferential tensioning band near one of two resistance spot welds, and had propagated to both edges of the band. There were preexisting cracks at both of the spot welds. The airplane had accrued only 343.1 hours since manufacture.
Probable Cause: A brittle fracture of the clamp that joins the exhaust pipe to the turbocharger. The pipe separated and hot exhaust gases escaped into the engine compartment. The engine lost power due to the high heat vaporizing fuel in the fuel line. Factors were inadequate quality control by the clamp manufacturer; the pilot's intentional maneuvering of the airplane to avoid houses and personnel, and the lack of suitable terrain on which to make a forced landing.
Accident investigation:
 |
|
Sources:
NTSB FTW98FA325
Location
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] |
| 06-Apr-2024 19:00 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Source, Narrative, Category, Accident report] |
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