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ASN Wikibase Occurrence # 42670
Last updated: 21 September 2021
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Date:20-DEC-1988
Time:18:00
Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell 206L-1 LongRanger II
Owner/operator:Helicopters Unlimited
Registration: N1072S
MSN: 45326
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:San Francisco Bay, off Oakland, California -   United States of America
Phase: En route
Nature:Executive
Departure airport:Oakland, California (OAK/KOAK)
Destination airport:Hunter's Point, San Francisco, California
Investigating agency: NTSB
Narrative:
THE PILOT DESCENDED INTO THE SAN FRANCISCO BAY AREA WHILE ON A NIGHT VISUAL FLIGHT FROM OAKLAND TO SAN FRANCISCO. THE WEATHER WAS INSTRUMENT METEOROLOGICAL CONDITIONS WITH VISIBILITY BETWEEN ONE TO FOUR MILES WITH MODERATE RAIN SHOWERS AND FOG.

PRIOR TO THE ACCIDENT THE PILOT ATTEMPTED TO RADIO SAN FRANCISCO TOWER BUT WAS ADVISED HE WAS STILL BROADCASTING ON THE OAKLAND TOWER FREQUENCY. THE PILOT ACKNOWLEDGED THE ADVICE AND WAS NOT HEARD FROM AGAIN.

THE AIRCRAFT WAS RECOVERED FROM THE BAY AFTER EXPOSURE TO SALT WATER. EXAMINATION OF THE AIRCRAFT WRECKAGE REVEALED NO EVIDENCE OF A MECHANICAL MALFUNCTION PRIOR TO THE ACCIDENT. THE PILOT WAS NOT FOUND. THE INVESTIGATION REVEALED THAT THE PILOT HAD LITTLE RECENT INSTRUMENT EXPERIENCE.

CAUSE: PILOTS INTENTIONAL FLIGHT INTO KNOWN ADVERSE WEATHER CONDITIONS FROM WHICH HE INADVERTENTLY DESCENDED INTO THE WATER AT A HIGH RATE OF SPEED. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S FAILURE TO OBTAIN A WEATHER BRIEFING; LACK OF RECENT INSTRUMENT FLYING EXPERIENCE; OVERCONFIDENT IN HIS OWN ABILITY TO CONDUCT A SAFE FLIGHT IN ADVERSE WEATHER CONDITIONS.

Sources:

1. NTSB Identification: LAX89LA073 at http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001213X27450&key=1&queryId=4dc35ddb-0675-48d2-8cc2-3c9861cd1699&pgno=6&pgsize=50
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=1072S
3. http://articles.latimes.com/1988-12-22/news/mn-1065_1_pilot-presumed-helicopters


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
22-Aug-2016 21:22 Dr.John Smith Updated [Time, Location, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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