FTW85LA116

NTSB accident investigation · Beech C-35 · Sheffield, TX · February 3, 1985

Accident · No injuriesLimited investigationFinal report
Date
February 3, 1985, 14:15 local (19:15 UTC)
Place
Sheffield, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N5821XBeech C-35
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Case key
21671

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) - mech failure/malfCruise - normal
Engine assembly - fatigueCause
Engine assembly,connecting rod - binding(mechanical)Cause
Engine assembly,bearing - binding(mechanical)Cause
Engine assembly,crankshaft - fatigueCause
Maintenance,replacement - improperOther maintenance personnelCause
Maintenance,major repair - improperOther maintenance personnelCause
Forced landingDescent - emergency
On ground/water collision with objectLanding - roll

Analysis

The plt stated the eng failed completely during cruise. The crankshaft was found separated during the eng teardown, with the rod and bearings also separated. Metallurgical testing revealed fractures to be from fatigue. Eng maintenance had been improperly accomplished during replacement of pistons and rod components. Rods had not been properly aligned, thus allowing bearings and caps to rub and groove the crankshaft, causing the failure point.

Aircraft

Registration
N5821X
Reported as
Beech C-35
Category
Airplane
Serial number
D-2773
Engine
Continental E-225-8, 225 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James E. Gerstemeier
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · October 11, 1984 · 65 hours before
Departed
AUS · Austin, TX
Destination
ELP · El Paso, TX
Flight plan
IFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
48
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,774 total · 1,000 in this make and model · 1,609 as pilot in command · 52 in the last 90 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
50 statute miles
Lowest ceiling
None