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ASN Wikibase Occurrence # 153940
Last updated: 4 August 2020
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Date:13-MAY-2005
Time:14:25
Type:Silhouette image of generic EC20 model; specific model in this crash may look slightly different
Eurocopter EC 120B Colibri
Owner/operator:Era Helicopters
Registration: N588SC
C/n / msn: 1130
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: None
Category:Incident
Location:near South Timbelier (ST265), GM -   United States of America
Phase: En route
Nature:Passenger - Non-Scheduled/charter/Air Taxi
Departure airport:S.Timbelier 265, GM
Destination airport:Fourchon, GM (9F2)
Investigating agency: NTSB
Narrative:
While in cruise flight approximately 14 miles south of Port Fourchon and while 500 feet above the water, the 2,117-hour pilot observed the engine low oil pressure light illuminate and shortly thereafter the helicopter lost total engine power. The pilot elected to turn into the wind, inflate the floats, and perform an autorotation to the water. After a successful autorotation, the pilot and passenger disembarked the helicopter without injury and were rescued. An examination of the engine on May 25, 2005 at Turbomeca USA revealed the total loss of engine power was a result of an interruption of engine lubrication due to excessive swelling of the oil pump assembly's check valve piston o-ring, part number 79-24-05-01-240.
Probable Cause: The loss of engine power as result of the failure of the oil pump assembly.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20050517X00625&key=1


Revision history:

Date/timeContributorUpdates
10-Mar-2013 11:46 TB Added
06-Dec-2017 15:33 ASN Update Bot Updated [Time, Operator, Departure airport, Destination airport, Source, Damage, Narrative]

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