LAX84FA129

NTSB accident investigation · Yaple, Robert G. VARI-EZE · Bowie, AZ · January 2, 1984

Accident · FatalField investigationFinal report
Date
January 2, 1984, 12:20 local (19:20 UTC)
Place
Bowie, AZ
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N1050GYaple, Robert G. VARI-EZE
Weather
Day
Status
Completed
Report
Approved by Office Director
FAA report
19840102000069A
Case key
23925

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 weatherClimb - to cruise
Flight into known adverse weather - initiatedPilot in commandCause
Self-induced pressurePilot in commandFactor
Weather condition - cloudsFactor
Weather condition - snowFactor
Weather condition - icing conditionsFactor
Loss of control - in flightClimb - to cruise
Wing - iceCause
Aircraft handling - not possible
Stall - uncontrolled
Airframe/component/system failure/malfunctionDescent - uncontrolled
Wing - overload
In flight collision with terrain/waterDescent - uncontrolled

Analysis

Despite 2 wx briefings forecasting marginal VFR conditions with reports of icing, the plt departed on a flt in the non-ifr equipped acft. Just prior to the accident, transmissions between the plt & ATC indicated that the acft was in a snow shower between cloud layers at 13,500 ft & was attempting to climb to VFR conditions. Subsequently, the acft broke up in flt & the wreckage was distributed over a 2 mi area. No evidence was found of a mechanical malfunction or failure prior to the in-flt breakup. A meteorological summary determined that icing of at least moderate intensity would have occurred from 6000 to 14,000 ft. the plt had been away from home for over 2 weeks & had experienced several wx related delays in the previous 2 days. A friend reported that he was scheduled to return to work & that the passenger(his son) had to return to school the following day.

Aircraft

Registration
N1050G
Reported as
Yaple, Robert G. VARI-EZE
Category
Airplane, amateur-built
Serial number
727
Engine
Lycoming O-235-F2B, 125 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Donald Reidel Stith
Airworthiness certificate
Special, Experimental (Special)
Departed
LRU · Las Cruces, NM
Destination
MYF · San Diego, CA
Airport
E54 · Bowie

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
49
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Toxicology
Performed
Flight hours
513 total · 203 in this make and model · 340 as pilot in command · 28 in the last 90 days · 17 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Day
Visibility
20 statute miles
Lowest ceiling
800 ft overcast
Temperature
39 °F, dew point -0 °F
Altimeter
30.00 inHg
Observed at
TUS, 75 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.