Aircraft Accident/Incident Report

Mammoth Lakes, California 93546
Friday, April 24, 2009 PDT

NTSB Narrative Summary Released at Completion of Accident

The motor-glider wreckage was located in mountainous terrain at an elevation of about 8,000-feet. The wreckage debris path was dispersed throughout trees and extended for 325 feet in a shallow canyon. The nearest weather reporting station, located about 10 miles from the accident site, indicated that around the time of departure, there was a cloud ceiling at 4,200 feet with calm wind. The ceiling observation was lowered to 3,300 feet about 2 hours later, with the wind gusting from 10 to 24 knots. Postaccident inspection of the airframe and engine revealed no anomalies that would have precluded normal operation. The circumstances leading up to the accident could not be determined.

NTSB Probable Cause Narrative

The pilot's failure to maintain clearance from terrain while maneuvering in a canyon.

Event Information

Type of Event Accident
Event Date 4/24/2009
Event Day of the Week Friday
Time of Event --
Event Time Zone Pacific Daylight Time
Event City Mammoth Lakes
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93546
Event Date Year 2009
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 374648N
Event Location Longitude 1185721W
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 --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1610 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID KMMH
Elevation of weather observation facility 7128
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 4100
Lowest Non-Ceiling Height 2900
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 7
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 24
Altimeter Setting at event time (in. Hg) 29.87
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 27631
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 Dec 10 2010 11:40AM
User who most recently changed record kelz
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N20822
NTSB Number WPR09LA222
Missing Aircraft Indicator --
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 VALENTIN
Aircraft Model TAIFUN 17 E II
Aircraft Series Identifier --
Aircraft Serial Number 1116
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class --
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 Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 26 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 235
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Allen R Melendy
Aircraft Owner Street Address --
Aircraft Owner City CANON CITY
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 81212
Operator is an individual? No
Operator Name Allen R Melendy
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City CANON CITY
Operator State CO
Operator Country USA
Operator Zip code 81212
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 No
Departure Airport Code TPH
Departure City Tonopah
Departure State NV
Departure Country USA
Departure Time 1500
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code MOD
Destination City Modesto
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 2 2010 5:42PM
User who most recently changed record coos
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --