Beaver Municipal Airport
Aircraft Accident/Incident Report

Beaver, Utah 84713
Saturday, June 1, 2002 14:20 MDT

NTSB Narrative Summary Released at Completion of Accident

The stall warning was activating 15 knots higher than it was supposed to while the airplane was in a climb. The pilot advised ARTCC that he was experiencing wind shear. He was told there was no reported wind shear in the area and to maintain 13,000 feet. The pilot was unable to maintain 13,000 feet, and descended to 12,000 feet, then to the minimum en route altitude of 11,000 feet. Unable to maintain this altitude, the pilot descended to 10,500 feet, cancelled his IFR flight plan, and descended further to 9,500 feet, at which point radio communications with ARTCC were lost. The airplane was yawing and "the ball (turn coordinator) was in the right side." The pilot held "full right aileron deflection to keep the [air]plane from turning." He attempted to make a precautionary landing at an airport. A left crosswind aided in keeping the airplane on track, but he was "unable to use the rudder to straighten out the [air]plane to land." At 100 feet above the ground, the pilot attempted a go-around. With flaps up, landing gear down, and full power applied, the airplane would not climb but descended slowly instead. The pilot made a forced landing in an open field 1 mile south of the airport. In the ensuing landing, both wings were damaged, the aft portion of the fuselage was wrinkled, and the main gear was torn off. An inspection of the aircraft after the accident disclosed no anomalies with the flight control system or the engine. Flight control continuity was confirmed.

NTSB Probable Cause Narrative

the pilot's selection of unsuitable terrain on which to make a forced landing. Contributing factors were mountain waves (wind shear) and crosswind.

Event Information

Type of Event Accident
Event Date 6/1/2002
Event Day of the Week Saturday
Time of Event 1420
Event Time Zone Mountain Daylight Time
Event City Beaver
Event State UTAH
Event Country --
Zipcode of the event site 84713
Event Date Year 2002
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 381230N
Event Location Longitude 1123930W
Event Location Airport Beaver Municipal
Event Location Nearest Airport ID U52
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 5860
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1354 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID MLF
Elevation of weather observation facility 5039
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.89
Density Altitude (feet) 8452
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 12596
NTSB Notification Source FAA COMM CTR
NTSB Notification Date Jun 1 2002 12:00AM
NTSB Notification Time 1448
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jan 16 2003 4:27PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Salt Lake City

Aircraft Involved

Aircraft #1

Aircraft Registration Number N171M
NTSB Number DEN02LA049
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-28R-201
Aircraft Series Identifier --
Aircraft Serial Number 28R-7837051
Certified Max Gross Weight 2750
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 Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 28 2002 12:00AM
Airframe hours since last inspection 5
Airframe Hours --
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name David S. Bowles
Aircraft Owner Street Address On File
Aircraft Owner City Providence
Aircraft Owner State UT
Aircraft Owner Country USA
Aircraft Owner Zipcode 84332
Operator is an individual? No
Operator Name Simon D. Bowles
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address On File
Operator City Lakeside
Operator State CA
Operator Country USA
Operator Zip code 92040
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 No
Departure Airport Code SEE
Departure City San Diego
Departure State CA
Departure Country USA
Departure Time 900
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code LGU
Destination City Logan
Destination State UT
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Nov 7 2002 12:41PM
User who most recently changed record MCBM
Since inspection or accident --
Event Location Runway Number and Location --
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --