LAX83LA352

NTSB accident investigation · Piper PA-22-108 · Mammoth Lakes, CA · July 22, 1983

Accident · Minor injuriesLimited investigationFinal report
Date
July 22, 1983, 15:39 local (22:39 UTC)
Place
Mammoth Lakes, CA
Injuries
1 minor
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N5737ZPiper PA-22-108
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830722034689A
Case key
23794

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectManeuvering
Aircraft performance,climb capability - exceededFactor
Performance data - not understoodPilot in commandCause
Object - tree(s)Factor
Procedures/directives - not followedPilot in commandCause
Weather condition - high density altitudeFactor

Analysis

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.

Aircraft

Registration
N5737Z
Reported as
Piper PA-22-108
Category
Airplane
Serial number
22-9576
Airframe hours
1,635
Engine
Lycoming O-235-C1B, 108 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Berj A. Nerguizian
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 3, 1982 · 100 hours before
Departed
UDD · Palm Desert, CA
Destination
022 · Sonora, CA

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
46
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
500 total · 135 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
93 °F, dew point 34 °F
Altimeter
29.00 inHg
Observed at
BTH, 40 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.