BFO93LA121

NTSB accident investigation · Cessna 404 · Cincinnati, OH · July 12, 1993

Accident · No injuriesLimited investigationFinal report
Date
July 12, 1993, 08:20 local (12:20 UTC)
Place
Cincinnati, OH
Injuries
8 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N37167Cessna 404
Weather
Visual (VMC) · Day
Status
Completed · report September 26, 1994
Report
Approved by Office Director
FAA report
19930712028139A
Case key
8788

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 failure of a number three engine cylinder hold down bolt due to fatigue.

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
1 engine
Engine assembly,cylinder - separation
Fuel system,line - disconnected
FireCruise - normal

Analysis

While in cruise flight, the airplane's number two engine failed and caught fire. The pilot put the airplane in a dive and extinguished the fire. The flight diverted to the nearest airport and landed without further incident. Examination of the airplane revealed that the fire had burned through the engine cowling and damaged the right wing spar. Examination of the engine revealed that the number three cylinder had separated from the crankcase and the associated fuel injector line was disconnected from its fitting. Metallurgical examinations of the number three cylinder components revealed that the number three cylinder hold down bolts failed due to fatigue.

Aircraft

Registration
N37167
Reported as
Cessna 404
Category
Airplane
Serial number
4040129
Airframe hours
8,091
Engine
Continental GTSIO-520-M, 375 horsepower, reciprocating
Damage
Substantial damage
Fire
In-Flight
Flight
Part 135
Operator
Bowman Aviation
Registered owner
Jat Aviation, Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 4, 1993 · 54 hours before
Departed
SMD · Ft. Wayne, IN
Destination
GVL · Gainesville, GA
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
45
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
13,500 total · 300 in this make and model · 13,500 as pilot in command · 60 in the last 90 days · 30 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.