FTW92FA152

NTSB accident investigation · Siai-Marchetti SF260B · Decatur, TX · June 7, 1992

Accident · FatalField investigationFinal report
Date
June 7, 1992, 12:55 local (17:55 UTC)
Place
Decatur, TX
Injuries
2 fatal
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N22FDSiai-Marchetti SF260B
Weather
Visual (VMC) · Day
Status
Completed · report June 30, 1993
Report
Approved by Office Director
FAA report
19920607025649A
Case key
18361

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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Probable cause

The loss of engine power as the result of the failure of the engine oil pump. Factors were non compliance with a service bulletin, the lack of suitable terrain, and inadvertent stall.

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
Lubricating system,oil pressure pump - failure,totalCause
Maintenance,service bulletin/letter - not performedOther maintenance personnelFactor
Engine assembly,connecting rod cap - separation
Engine assembly,crankcase - cracked
Forced landingDescent - emergency
In flight collision with terrain/waterLanding
Terrain condition - none suitableFactor
Stall - inadvertentPilot in commandFactor
Fire/explosionOther

Analysis

An italian built military trainer experienced a catastrophic engine failure during a demonstration flight for a prospective buyer. The engine failure was the result of the failure of the engine oil pump shaft. While attempting a forced landing to a two lane highway, a high rate of descent developed during an inadvertent stall and the airplane impacted an embankment on the shoulder of the road, exploded and burned. A 1975 service bulletin recommended replacement of the failed shaft with an improved shaft.

Aircraft

Registration
N22FD
Reported as
Siai-Marchetti SF260B
Category
Airplane
Serial number
17-01
Engine
Lycoming O-540-E4A5, 260 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Homer F. Woodard
Registered owner
Homer F. Woodard
Airworthiness certificate
Standard, Utility; Standard, Aerobatic
Last inspection
Annual · January 2, 2000
Departed
T67 · Fort Worth, TX
Destination
T67

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
62
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Right
Toxicology
Performed
Flight hours
4,000 total · 300 in this make and model · 75 in the last 90 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 8 knots
Visibility
10 statute miles
Lowest ceiling
2,800 ft broken
Temperature
82 °F, dew point 68 °F
Altimeter
29.00 inHg
Observed at
FTW, 40 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.