LAX91LA319

NTSB accident investigation · Piper J3C-65 · Patterson, CA · July 19, 1991

Accident · Serious injuriesLimited investigationFinal report
Date
July 18, 1991, 19:45 local (Jul 19, 1991, 02:45 UTC)
Place
Patterson, CA
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N23142Piper J3C-65
Weather
Visual (VMC) · Day
Status
Completed · report July 13, 1993
Report
Approved by Office Director
FAA report
19910718028999A
Case key
27297

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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Probable cause

The pilot-in-command's improper visual lookout in a descent at low altitude, resulting in an in flight collision with wires and subsequent in flight collision with terrain.

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
Object - wire,transmission
Visual lookout - improperPilot in commandCause
Loss of control - in flightDescent - uncontrolled
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - water

Analysis

The pilot and his passenger were flying in the vicinity of a river and a pond trying to locate stray cattle. They were flying at about 400 feet above the ground when the passenger thought he spotted something at the north end of a pond. Not being able to identify the object, they began a descent to try to identify the object. During descent the aircraft collided with electrical transmission wires. The aircraft entered an uncontrolled descent and impacted the water in the pond. They said that they did not see the wires or supporting poles. An FAA safety inspector reported that 3 wires had been broken. The poles are on land and they are approximately 1,140 feet apart.

Aircraft

Registration
N23142
Reported as
Piper J3C-65
Category
Airplane
Serial number
2923
Engine
Continental C85-12F, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Michael Mahaffey
Registered owner
Michael Mahaffey
Last inspection
Unknown · January 2, 2000
Departed
CA67 · Westley, 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
34
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
508 total · 50 in this make and model · 443 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
15 statute miles
Lowest ceiling
None

FAA reports on this event · 1

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