SEA88LA107

NTSB accident investigation · Beech A36 · Wenatchee, WA · June 8, 1988

Accident · No injuriesLimited investigationFinal report
Date
June 8, 1988, 12:40 local (19:40 UTC)
Place
Wenatchee, WA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7243XBeech A36
Weather
Visual (VMC) · Day
Status
Completed · report July 26, 1989
Report
Approved by Office Director
FAA report
19880608057049A
Case key
40829

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 - turbulence in cloudsFactor
In-flight weather advisories - not obtainedPilot in commandCause
Weather evaluation - inadequatePilot in commandCause
Weather condition - icing conditionsFactor
Loss of control - in flightCruise - normal
Wing - iceCause
Stall/spin - inadvertentPilot in commandCause
Airframe/component/system failure/malfunctionDescent
Design stress limits of aircraft - exceededPilot in commandCause

Analysis

Airframe ice was accumulating on the aircraft at 13,000 feet so the pilot requested an altitude of 14,000 feet. At 14,000 feet the pilot lost control of the aircraft and descended down to 6,500 feet before recovering. The pilot had stated that he felt he had an autopilot failure. The autopilot was inspected but no abnormalities could be determined. Towering cumulus clouds were present at all quadrants near the airport at the time of the accident. The acft landed without further damage. Examination of the aircraft revealed extreme buckling of the aircraft structure.

Aircraft

Registration
N7243X
Reported as
Beech A36
Category
Airplane
Serial number
E 2355
Engine
Continental IO-550-B, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
John Collins
Registered owner
C And S Manufacturing Corp.
Airworthiness certificate
Standard, Normal
Departed
BFI · Seattle, WA
Destination
GTF · Great Falls, MT
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
57
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,000 total

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 10 knots
Visibility
30 statute miles
Lowest ceiling
6,000 ft broken
Temperature
63 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
EAT, 15 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.