Aircraft Accident/Incident Report

Iliamna Bay, Alaska
Tuesady, August 28, 1984 6:00 AKD

NTSB Narrative Summary Released at Completion of Accident

THE ACFT STRUCK A GRAVEL BAR WHILE TAXIING. THE ACFT WAS NOT FREED FROM THE GRAVEL BAR UNTIL THE NEXT MORNING DUE TO A RECEDING TIDE ON THE PREVIOUS NIGHT. APPROX 3 HOURS LATER AS THE PILOT TAXIED AROUND AWAITING DAYLIGHT FOR TAKEOFF, THE ACFT ROLLED OVER IN THE WATER AND EVENTUALLY SANK. PRIOR TO THE DISAPPEARANCE OF THE ACFT, THE PILOT NOTICED TWO 1 INCH DENTS IN THE SUBMERGED FLOAT WITH BUBBLES COMING OUT OF THEM. THE PILOT ALSO STATED THAT THE FLOATS ROUTINELY LEAKED AND NEEDED TO BE PUMPED OUT DAILY, HOWEVER HE INDICATED THAT THIS WAS NOT ACCOMPLISHED BETWEEN THE TIME THE ACFT STRUCK THE GRAVEL BAR AND THE TIME IT SANK. THERE WERE NO APPROVED PERSONAL FLOATATION DEVICES ABOARD THE ACFT. THE FOUR INDIVIDUALS ABOARD THE PLANE USED INFLATED HIP WADERS DURING AN ATTEMPT TO SWIM FOR SHORE. TWO INDIVIDUALS WERE LOST AND PRESUMED DROWNED IN THIS ATTEMPT. WATER TEMPERATURE WAS APPROX 45 DEGREES F.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/28/1984
Event Day of the Week Tuesday
Time of Event 600
Event Time Zone --
Event City ILIAMNA BAY
Event State ALASKA
Event Country --
Zipcode of the event site
Event Date Year 1984
Event Date Month 8
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Dawn
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
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) 10
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
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 2
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1633
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 25454
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2641Y
NTSB Number ANC84LA148
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 180
Aircraft Series Identifier 180
Aircraft Serial Number 18051141
Certified Max Gross Weight 2550
Aircraft Category Airplane
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 8 1984 12:00AM
Airframe hours since last inspection 30
Airframe Hours 4260
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JERRY S. PIPPEN
Aircraft Owner Street Address 1 ROCKY ROAD
Aircraft Owner City PEDRO BAY
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99647
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
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
Departure City
Departure State
Departure Country
Departure Time 600
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code
Destination City PEDRO BAY
Destination State AK
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --