LAX85FA073

NTSB accident investigation · Mooney M20J · Grand Canyon, AZ · December 16, 1984

Accident · FatalField investigationFinal report
Date
December 16, 1984, 06:40 local (13:40 UTC)
Place
Grand Canyon, AZ
Injuries
4 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N4812HMooney M20J
Weather
Night/dark
Status
Completed
Report
Approved by Office Director
FAA report
19841216066809A
Case key
24444

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 weatherCruise - normal
Weather condition - icing conditionsCause
Flight into known adverse weather - initiatedPilot in commandCause
Improper decisionPilot in commandFactor
Loss of control - in flightCruise - normal
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - mountainous/hilly

Analysis

The plt received a wx briefing and was advised of moderate rime and mixed icing in clouds. He filed an IFR flt plan and departed. While at 12000 ft, he reported encountering severe rime ice and requested a lower altitude. He stated thathe was trying to fling off propeller ice when radar and radio contact were lost. The wreckage was located in remote mountainous terrain by a ground party directed to the site by an air force acft which monitered a ELT signal.

Aircraft

Registration
N4812H
Reported as
Mooney M20J
Category
Airplane
Serial number
24-0887
Engine
Lycoming IO-360-A3B6D, 200 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Gary D. Baumann
Airworthiness certificate
Standard, Normal
Departed
FFZ · Mesa, AZ
Destination
CDC · Cedar City, UT
Flight plan
IFR

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
42
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Toxicology
Performed

Weather

Conditions
Night/dark
Visibility
15 statute miles
Lowest ceiling
None
Observed at
PRC, 108 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.