ASN Wikibase Occurrence # 176387
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Date: | Tuesday 13 April 2004 |
Time: | 12:30 |
Type: | Piper PA-46-310P Malibu |
Owner/operator: | Private |
Registration: | N861DD |
MSN: | 4608002 |
Year of manufacture: | 1986 |
Total airframe hrs: | 3448 hours |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Taylor, PA -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Factoryville, PA (9N3) |
Destination airport: | Lancaster, PA (LNS) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The airplane was in a climb at 5,500 feet, when the engine began to vibrate and lose power. The pilot observed an increase in oil temperature, and a decrease in oil pressure; which was followed by a total loss of engine power. The pilot performed a forced landing to a field; however, during the landing, the airplane's left wing impacted a tree. Examination of the airplane revealed streaks of oil on the engine cowling, and a 6-inch hole in the top of the engine crankcase, in the vicinity of the number 2 cylinder. Further examination revealed that the number 2 connecting rod was broken into four pieces. The connecting rod journal was black in color and the metal had a "smeared" appearance. Fretting was observed on the mating surfaces of the number 2 main bearing saddles. In addition, the bearing shells had "walked" towards the rear of the engine about 1/4 of an inch. The crankcase through-bolt torques could not be determined. According to a representative of the engine manufacturer, a bearing shift could result in a decrease in oil flow to the journal, and a subsequent catastrophic engine failure. The airplane had been operated for 26 hours, since it's most recent annual inspection, which was performed about a month prior to the accident. The engine had been operated for about 1,700 hours, since it was rebuilt by TCM about 9 years prior to the accident.. The number 2 and 4 cylinders had been replaced about 830 hours prior to the accident.
Probable Cause: The failure of the number 2 connecting rod, after a main bearing shift, which resulted in a catastrophic engine failure.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | NYC04LA105 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB:
https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040419X00479&key=1 Location
Revision history:
Date/time | Contributor | Updates |
26-May-2015 12:59 |
Noro |
Added |
21-Dec-2016 19:30 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
07-Dec-2017 17:52 |
ASN Update Bot |
Updated [Cn, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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