LAX85LA165

NTSB accident investigation · Cessna 172 · Orick, CA · March 4, 1985

Accident · Minor injuriesLimited investigationFinal report
Date
March 4, 1985, 11:20 local (19:20 UTC)
Place
Orick, CA
Injuries
1 minor, 2 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N12486Cessna 172
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850304048549A
Case key
24669

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

On this page

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.

Loss of engine power(total) - nonmechanicalDescent - normal
Weather condition - carburetor icing conditionsFactor
Carburetor heat - improper use ofPilot in commandCause
Fuel system,carburetor - iceCause
Forced landingDescent - emergency
In flight collision with objectLanding - flare/touchdown
Object - fenceFactor

Analysis

While in flt at 11,500 ft, the plt began a descent. As the acft reached 2500 ft, the eng began sputtering, then lost power. Subsequently, the acft collided with a wire fence as the plt was approaching to land in an open field. The plt reported that during the descent, he had turned on the carb heat. However, the carb heat control was found in the off position & the carb heat door was closed. No preexisting malfunctions or failures were found. The temp & dew point were 38 & 34 deg, respectively. According to icing probability curves, the acft would have been operating in a serious carb icing range during the descent.

Aircraft

Registration
N12486
Reported as
Cessna 172
Category
Airplane
Serial number
172-62016
Airframe hours
6,200
Engine
Lycoming O-320-H2AD, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Joseph Joseph, Jr.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 25, 1985 · 0 hours before
Departed
085 · Redding, CA
Destination
CEC · Crescent City, CA
Flight plan
VFR
Airport
CEC · Jack Mcnamara

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--w/ waivers/lim
Seat
Left
Flight hours
616 total · 616 in this make and model · 494 as pilot in command · 12 in the last 90 days · 12 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 9 knots
Visibility
10 statute miles
Lowest ceiling
1,200 ft broken
Temperature
37 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
CEC

FAA reports on this event · 1

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