ASN Wikibase Occurrence # 43431
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Date: | Thursday 14 July 1988 |
Time: | 07:25 |
Type: | Aérospatiale SA 330J Puma |
Owner/operator: | Petroleum Helicopters (PHI) |
Registration: | N47307 |
MSN: | 1402 |
Total airframe hrs: | 4727 hours |
Engine model: | Turbomeca TURMO IVC |
Fatalities: | Fatalities: 1 / Occupants: 16 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | 60 mi S of Morgan City, LA -
United States of America
|
Phase: | Take off |
Nature: | Offshore |
Departure airport: | Eugene Island Helideck, Gulf of Mexico |
Destination airport: | Intracoastal City, Lousiana |
Confidence Rating: | Information is only available from news, social media or unofficial sources |
Narrative:DRG LIFT-OFF FROM AN OIL PLATFORM IN THE GULF OF MEXICO, THE HELICOPTER BGN A SLOW UNCOMMANDED LEFT TURN. THE PLT TRIED TO FLY IT BY LOWERING THE NOSE & INCREASING COLLECTIVE. AFTER 2 TURNS, THE HELICOPTER SETTLED & IMPACTED THE WATER IN A LEFT BANK, NOSE DOWN ATTITUDE. THE AUTO-PLT WAS NOT DISCONNECTED, NOR WERE THE FLOATS INFLATED. NO PREIMPACT MECH FAILURE WAS FOUND. INTERVIEWS REVEALED THE HELICOPTER WAS NOT STABILIZED IN A HOVER BEFORE INITIATING A TAKEOFF. THERE WAS A PREVIOUS WRITE-UP WHICH STATED 'A/C REQUIRES MORE RIGHT PEDAL THAN USUAL IN HOVER AND FORWARD FLIGHT.' IN RESPONSETO THIS WRITE-UP, A MECHANIC HAD ADJUSTED A TUBE WHICH RAN REARWARD FROM THE PEDAL ASSEMBLY TO THE LOWER PORTION OF THE AUTO-PILOT SYSTEM. THE MAINTENANCE MANUAL DESCRIBED THIS TUBE AS BEING ONE OF THE 'SEMI-FIXED' RODS. REFERRING TO THESE RODS, THE MANUAL CAUTIONED, 'THEY ARE ADJUSTED ONCE FOR ALL WHEN THEY ARE FITTED TO THE AIRCRAFT. THEY MUST NOT BE ADJUSTED SUBSEQUENTLY.' CAUSE: NONE SUBMITTED
Sources:
1.
http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001213X26235&key=1 2.
http://www.airport-data.com/aircraft/photo/000110851.html Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
18-Feb-2010 11:39 |
TB |
Updated [Aircraft type, Other fatalities, Departure airport] |
14-Apr-2012 10:53 |
TB |
Updated [Operator, Nature, Source] |
10-Dec-2016 21:15 |
Dr. John Smith |
Updated [Operator, Location, Country, Departure airport, Destination airport, Source] |
21-Dec-2016 19:24 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
06-Mar-2017 18:25 |
TB |
Updated [Operator, Location, Source] |
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