Aircraft Accident/Incident Report

Mammoth Lakes, California 93546
Friday, July 22, 1983 15:39 PDT

NTSB Narrative Summary Released at Completion of Accident

THE ACFT COLLIDED WITH TREES WHILE TRYING TO MANEUVER THROUGH A MOUNTAIN PASS AT 13000 FT MSL WITH THE TEMPERATURE AT 82DEGREES. THE PLT STATED THAT THE ACFT STARTED A HIGH SINK RATE. HE CHECKED THE THROTTLE, MAGS AND MIXTURE BUT WAS FORCEDTO SETTLE INTO THE TREES ABOUT 1 MILE WEST OF MAMMOTH LAKES ARPT. THE DENSITY ALT WAS ABOUT 17200 FT. THE SERVICE CEILING OF A PA-22 IS 12000 FT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/22/1983
Event Day of the Week Friday
Time of Event 1539
Event Time Zone Pacific Daylight Time
Event City MAMMOTH LAKES
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93546
Event Date Year 1983
Event Date Month 7
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 0
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1550 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 30
Weather Observation Facility ID BTH
Elevation of weather observation facility 4120
Distance of event from weather observation facility (units?) 40
Time Zone of the weather observation PDT
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) 34
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 11835
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) 2222
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 22564
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5737Z
NTSB Number LAX83LA352
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-22-108
Aircraft Series Identifier PA-22-108
Aircraft Serial Number 22-9576
Certified Max Gross Weight 1800
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 Annual
Date of Last Inspection Nov 3 1982 12:00AM
Airframe hours since last inspection 100
Airframe Hours 1635
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BERJ A. NERGUIZIAN
Aircraft Owner Street Address 73-040 EL PASEO
Aircraft Owner City PALM DESERT
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 92260
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate Yes - certificate holder
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 No
Departure Airport Code UDD
Departure City PALM DESERT
Departure State CA
Departure Country
Departure Time 1215
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code 022
Destination City SONORA
Destination State CA
Destination Country
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
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 --