Aircraft Accident/Incident Report

Woods River, Alaska 99701
Wednesday, June 19, 1991 9:30 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PILOT MADE A LOW, SLOW PASS OVER THE LANDING AREA. AFTER COMPLETING THE PASS, HE MADE A SHARP BANKED TURN TO THE LEFT AT LOW AIRSPEED, AND THE AIRPLANE STALLED AND CRASHED. NO PREIMPACT MECHANICAL PROBLEM WAS FOUND THAT WOULD HAVE RESULTED IN THE ACCIDENT. A TOXICOLOGY CHECK OF THE PLT'S BLOOD SHOWED A LOW LEVEL OF ETHANOL, BUT NO ETHANOL WAS FOUND IN HIS URINE; THE AMOUNT OF BLOOD/ETHANOL DUE TO PUTREFACTION WAS NOT VERIFIED. THE AIRPLANE WAS LOADED WITH 2 OCCUPANTS, A DOG, 73 LBS OF GROCERIES, AND A 50 LB SACK OF FEED ON EACH WING STRUT, BUT THE INVESTIGATION DID NOT VERIFY THE WEIGHT/DISTRIBUTION. THE PASSENGER REPORTED THAT THE AIRPLANE ENCOUNTERED WIND GUSTS AND TURBULENCE.

NTSB Probable Cause Narrative

FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHILE TURNING AFTER A LOW PASS, WHICH RESULTED IN AN INADVERTENT STALL. THE WIND GUSTS AND TURBULENCE WERE RELATED FACTORS.

Event Information

Type of Event Accident
Event Date 6/19/1991
Event Day of the Week Wednesday
Time of Event 930
Event Time Zone --
Event City WOODS RIVER
Event State ALASKA
Event Country --
Zipcode of the event site 99701
Event Date Year 1991
Event Date Month 6
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Witness
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 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 40
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 20
Altimeter Setting at event time (in. Hg) 30
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1428
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44296
Date of most recent change to record Dec 12 2000 10:16AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N10PC
NTSB Number ANC91LA077
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 PIPER
Aircraft Model PA-18
Aircraft Series Identifier PA-18
Aircraft Serial Number 188217
Certified Max Gross Weight 1750
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection May 1 1991 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name LYNN M. CASTLE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P. O. BOX 50
Operator City MCKINLEY PARK
Operator State AK
Operator Country
Operator Zip code 99755
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 900
Departure Time Zone ADT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
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 --