ATL88LA031

NTSB accident investigation · Cessna 401A · Mobile, AL · November 6, 1987

Accident · No injuriesLimited investigationFinal report
Date
November 6, 1987, 17:55 local (23:55 UTC)
Place
Mobile, AL
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N6250QCessna 401A
Weather
Visual (VMC) · Dusk
Status
Completed · report May 16, 1989
Report
Approved by Office Director
FAA report
19871106069289A
Case key
7672

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.

Airframe/component/system failure/malfunctionClimb - to cruise
1 engine
Exhaust system,wastegate - separationCause
FireClimb - to cruise
Exhaust system - leakCause
Remedial action - performedPilot in command

Analysis

The plt related that he was climbing through 4,300 ft when he lost the left turbocharger. He then noted sparks and then fire from the engine. He shut off the fuel, waited for the fire to go out and feathered the propeller. The flt was continued to montgomery, AL where the acft was based and a no flap landing was executed. No further problems were encountered. Inspection revealed that the coupling from the exhaust to the waste gate had failed allowing exhaust gases to escape into the engine cowling. Acft damage included engine mount beams and the wing spar through the engine nacelle. AD 75-23-08 R5 does not apply to the fractured component.

Aircraft

Registration
N6250Q
Reported as
Cessna 401A
Category
Airplane
Serial number
401-A-0050
Airframe hours
4,730
Engine
Continental TSIO-520-E, 300 horsepower, reciprocating
Damage
Substantial damage
Fire
In-Flight
Flight
Business · Part 91
Operator
Montgomery Air Service
Registered owner
C. O. Williams, Jr.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 3, 1987 · 98 hours before
Departed
BFM · Mobile, AL
Destination
MGM · Montgomery, AL

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
68
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
26,922 total · 13 in this make and model · 26,922 as pilot in command · 31 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
9 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 19 °F
Altimeter
30.00 inHg
Observed at
MGM

FAA reports on this event · 1

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