LAX86LA036

NTSB accident investigation · Piper PA-28R-200 · Mammoth Lakes, CA · November 8, 1985

Accident · Serious injuriesLimited investigationFinal report
Date
November 8, 1985, 15:40 local (23:40 UTC)
Place
Mammoth Lakes, CA
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N3096RPiper PA-28R-200
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19851108059599A
Case key
25017

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 encounter with weatherTakeoff - initial climb
Weather condition - mountain waveFactor
Wind information - not attainedPilot in commandCause
Weather evaluation - inadequatePilot in commandCause
Judgment - poorPilot in commandCause
Weather condition - turbulence in cloudsFactor
Loss of control - in flightTakeoff - initial climb
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The plt reported that when he observed the arpt's wind sock in preparation for departure the wind was blowing down the rwy with occasional gusts that did not seem over 20 KTS. After taking off & climbing to abt 100 ft AGL, the acft encountered turbulence likely associated with a mountain wave condition. The plt stated & a ground- based witness reported that the acft rapidly rolled 90 deg. Rt & descended. Just before colliding with terrain the acft's wings were leveled. No mechanical failures or malfunctions were reported by the plt. 30 min after the crash the arpt's special wx observation listed the presence of standing lenticular altocumulus clds in all quadrants, & the surface winds were 15 KTS gusting to 25 KTS.

Aircraft

Registration
N3096R
Reported as
Piper PA-28R-200
Category
Airplane
Serial number
2PR-35665
Airframe hours
4,150
Engine
Lycoming IO-360-CIC, 200 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Paul A. Gordon
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 28, 1985 · 30 hours before
Departed
MMH · Mammoth Lakes, CA
Destination
CCB · Upland, CA
Airport
MMH · Mammoth-June Lakes, runway 27, 7,000 × 100 ft

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
53
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,081 total · 970 in this make and model · 1,960 as pilot in command · 31 in the last 90 days · 9 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 15 knots, gusting 25
Visibility
40 statute miles
Lowest ceiling
None
Temperature
39 °F
Altimeter
29.00 inHg
Observed at
MMH

FAA reports on this event · 1

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