Aircraft Accident/Incident Report

Sleepy Bay, Alaska
Tuesady, September 19, 1989 12:10 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED HE OVERFLEW THE INTENDED LANDING AREA & OBSERVED 2 TO 3 FOOT HIGH SWELLS. HE ELECTED TO LAND PARALLEL TO THE SWELLS AND INTO A QUARTERING HEADWIND. TOUCHDOWN WAS RPRTD TO BE SMOOTH ON THE LEFT FLOAT. THE ACFT THEN ENTERED A LARGE SWELL, 4 TO 5 FOOT HIGH, & BECOME AIRBORNE. IT THEN HIT THE WATER HARD & THE FRONT SPREADER BAR AND STRUT SYSTEM ON THE FLOATS FAILED. THE WIND WAS REPORTED TO BE FROM 075 DEG AT 10 GUSTING 15 KTS, FROM THE OPEN OCEAN, STRAIGHT INTO SLEEPY BAY.

NTSB Probable Cause Narrative

SELECTION OF UNSUITABLE TERRAIN (WATER CONDITION) BY THE PILOT. THE ROUGH WATER CONDITION WAS A RELATED FACTOR.

Event Information

Type of Event Accident
Event Date 9/19/1989
Event Day of the Week Tuesday
Time of Event 1210
Event Time Zone --
Event City SLEEPY BAY
Event State ALASKA
Event Country --
Zipcode of the event site
Event Date Year 1989
Event Date Month 9
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 Partial - limited by pilot
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 Day
Lowest Ceiling Height 2000
Lowest Non-Ceiling Height 700
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) 15
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 75
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Light
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1145
NTSB Notification Source --
NTSB Notification Date Sep 19 1989 12:00AM
NTSB Notification Time 1400
Fiche Number and/or location -used to find docket information 39297
Date of most recent change to record Dec 13 2000 1:02PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N851TB
NTSB Number ANC89LA168
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name de Havilland
Aircraft Model DHC-6
Aircraft Series Identifier DHC-6
Aircraft Serial Number 201
Certified Max Gross Weight 11600
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 11
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Sep 15 1989 12:00AM
Airframe hours since last inspection 13
Airframe Hours 25821
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RED BARON LEASING CO. INC
Aircraft Owner Street Address 13608 JARVI DRIVE
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name SOUND ADVENTURES
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 190146
Operator City ANCHORAGE
Operator State AK
Operator Country
Operator Zip code 99519
Operator Code SOQC
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 No
Departure Airport Code
Departure City MCPHERSON BAY
Departure State AK
Departure Country
Departure Time 1055
Departure Time Zone ADT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
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 --