Big Lake Airport
Aircraft Accident/Incident Report

Big Lake, Alaska 99652
Friday, July 3, 1992 11:00 AKD

NTSB Narrative Summary Released at Completion of Accident

THE PILOT OF THE EXPERIMENTAL RANS S-7 ENCOUNTERED A WIND SHEAR DURING HIS INITIAL CLIMBOUT. DURING THIS ENCOUNTER THE PILOT ALLOWED THE AIRCRAFT TO STALL, RESULTING IN AN UNCONTROLLED DESCENT INTO THE TERRAIN.

NTSB Probable Cause Narrative

THE PILOT'S DELAYED REMEDIAL ACTION, AND AN INADVERTENT STALL. FACTORS INCLUDE WIND GUSTS AND A WIND SHEAR.

Event Information

Type of Event Accident
Event Date 7/3/1992
Event Day of the Week Friday
Time of Event 1100
Event Time Zone --
Event City BIG LAKE
Event State ALASKA
Event Country --
Zipcode of the event site 99652
Event Date Year 1992
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BIG LAKE AIRPORT
Event Location Nearest Airport ID BGQ
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 150
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 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) 90
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 310
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 Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2619
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 47408
Date of most recent change to record Dec 11 2000 3:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N48PS
NTSB Number ANC92LA101
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 MOONEY
Aircraft Model RANS S-7 COURIER
Aircraft Series Identifier RANS S-7 C
Aircraft Serial Number 0689048
Certified Max Gross Weight 1100
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Annual
Date of Last Inspection May 1 1992 12:00AM
Airframe hours since last inspection 1
Airframe Hours 45
ELT Installed Yes
ELT Activated --
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MOONEY, PATRICK D.
Aircraft Owner Street Address 12910 STEPHENSON
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99515
Operator is an individual? --
Operator Name MOONEY, PATRICK D.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 12910 STEPHENSON
Operator City ANCHORAGE
Operator State AK
Operator Country
Operator Zip code 99515
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1100
Departure Time Zone ADT
Destination Same as Local Flt --
Destination Airport Code MRI
Destination City ANCHORAGE
Destination State AK
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 8 2006 1:53PM
User who most recently changed record NTSB\HAMG
Since inspection or accident --
Event Location Runway Number and Location 24
Runway Length 3000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --