Aircraft Accident/Incident Report

Oakland, California 94614
Tuesady, December 20, 1988 18:00 PST

NTSB Narrative Summary Released at Completion of Accident

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 PLT WAS NOT FOUND. THE INVESTIGATION REVEALED THAT THE PILOT HAD LITTLE RECENT INSTRUMENT EXPERIENCE.

NTSB Probable Cause Narrative

PILOTS INTENTIONAL FLIGHT INTO KNOWN ADVERSE WEATHER CONDITITIONS 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.

Event Information

Type of Event Accident
Event Date 12/20/1988
Event Day of the Week Tuesday
Time of Event 1800
Event Time Zone Pacific Standard Time
Event City OAKLAND
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94614
Event Date Year 1988
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1745 Pacific Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID OAK
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PST
Lighting Conditions Night/Dark
Lowest Ceiling Height 1600
Lowest Non-Ceiling Height 1000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 1
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 20
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Moderate
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2365
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 39079
Date of most recent change to record Dec 13 2000 12:21PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1072S
NTSB Number LAX89LA073
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206L-1
Aircraft Series Identifier 206L-1
Aircraft Serial Number 45326
Certified Max Gross Weight 4050
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 3244
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name HELICOPTERS UNLIMITED
Aircraft Owner Street Address 9625 EARHART ROAD
Aircraft Owner City OAKLAND
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 94614
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Business
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code OAK
Departure City
Departure State
Departure Country
Departure Time 1800
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City HUNTER'S POINT
Destination State CA
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --