Pleasant Valley Airport
Aircraft Accident/Incident Report

Peoria, Arizona 85382
Sunday, April 24, 2011 15:24 MST

NTSB Narrative Summary Released at Completion of Accident

The local soaring flight departed via air-tow. Upon entering two back-to-back thermals, the glider climbed to an altitude of 9,000 feet mean sea level. The pilot maneuvered the glider toward marker clouds for additional thermaling; however, he encountered what he described as severe turbulence and decided to head back to the airport. Just abeam the northwest end of a lake near the airport, the glider encountered turbulence along with a high sink rate. The pilot reported the sink rate to be from 500 to 800 feet per minute (fpm), with extremes up to 1,200 fpm to 1,500 fpm. The pilot attempted to maneuver the glider to minimize its time in the sink condition. He realized that he was not going to make it back to the airport and started to look for a place to land. Due to busy roads and full parking lots, he chose to land along the shoreline of the lake. The glider touched down about 30 yards from the shore. The pilot stated that, in retrospect, he believes that the glider was caught on the leeward side of a ridge or the downdraft of a wave. He reported no mechanical anomalies with the glider prior to the accident. The right side of the tail separated from the glider during the ditching and damage occurred to the spoilers and ailerons.

NTSB Probable Cause Narrative

The glider's encounter with turbulence and loss of lift, which resulted in a ditching in a lake.

Event Information

Type of Event Accident
Event Date 4/24/2011
Event Day of the Week Sunday
Time of Event 1524
Event Time Zone Mountain Standard Time
Event City Peoria
Event State ARIZONA
Event Country --
Zipcode of the event site 85382
Event Date Year 2011
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 334802N
Event Location Longitude 1121502W
Event Location Airport Pleasant Valley Airport
Event Location Nearest Airport ID P48
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 --
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28516
NTSB Notification Source FAA AWP Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 7 2011 12:04PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N110AZ
NTSB Number WPR11CA208
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name DOKTOR FIBERGLAS
Aircraft Model H101 SALTO
Aircraft Series Identifier --
Aircraft Serial Number 61
Certified Max Gross Weight 683
Aircraft Category Glider
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 15 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours 850
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Thomas Brueckner
Aircraft Owner Street Address --
Aircraft Owner City Durango
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 81303
Operator is an individual? Yes
Operator Name Thomas Brueckner
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Durango
Operator State CO
Operator Country USA
Operator Zip code 81303
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 Yes
Departure Airport Code P48
Departure City Peoria
Departure State AZ
Departure Country USA
Departure Time 1417
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code P48
Destination City Peoria
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 7 2011 11:47AM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --