CHI94LA198

NTSB accident investigation · Beech 18 · Belleville, MI · June 13, 1994

Accident · No injuriesLimited investigationFinal report
Date
June 13, 1994, 17:43 local (21:43 UTC)
Place
Belleville, MI
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N231LJBeech 18
Weather
Visual (VMC) · Day
Status
Completed · report January 26, 1995
Report
Approved by Office Director
FAA report
19940613015299A
Case key
9567

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 the fuel line on the unique STC'd engine installation. A related factor is the improper installation of a fuel line by company maintenance personnel.

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.

FireLanding - roll
Fuel system,line - failure,totalCause
Maintenance,installation - improperCompany maintenance personnelFactor

Analysis

The pilots stated they noticed the left engine fuel pressure gauge indicated below normal while in the traffic pattern for landing. The fuel boost pump was activated and fuel pressure increased to the normal range. The pilots reported after landing the left engine compressor stalled several times and then the engine caught fire. Postaccident investigation revealed the left engine #3 fuel line failed. Photos revealed the bends in the #3 fuel line had been modified for the unique installation on the accident airplane. The fuel line was discarded before further examination was accomplished.

Factual narrative

On June 13, 1994, at 1743 eastern daylight time, a Beech BE18, N231LJ, operated as a Part 91 positioning flight, sustained substantial damage when the left engine caught fire during the landing roll on Runway 27L at the Willow Run Airport in Belleville, Michigan. The pilot and the copilot reported no injuries. Visual meteorological conditions prevailed for the flight, an IFR flight plan was filed. The flight originated from Chesterfield, Missouri approximately 1530.

The pilots reported the flight was normal until they were on the downwind leg in the traffic pattern. At that point they observed the left engine fuel pressure gauge was indicating below normal. The fuel boost pump was activated and the fuel pressure climbed back up into the green. The pilots continued the approach and made a normal landing, with both engines running. They stated as the airplane decelerated on the runway, the left engine backfired 2 or 3 times, then caught fire. The pilots brought the airplane to a stop on the runway and exited. Crash Fire Rescue personnel arrived and extinguished the fire.

The accident airplane was a one-of-a-kind modification, a turbine engine conversion using Garrett TPE 331-6 engines, as described in Supplemental Type Certificate (STC) Number SA2958WE, appended. Postaccident investigation revealed the left engine #3 fuel line (P/N 869518-1), which runs between the fuel control unit and the oil/fuel heat exchanger, failed near the heat exchanger. Photographs were taken, then the fuel line was removed and discarded by the operator.

The engine manufacturer's engineering department examined the photographs in an attempt to determine how the fuel line (P/N 869518-1) failed. The examination revealed the fuel line installed on the accident airplane appeared to have the same span, but "significantly different bends" when compared to P/N 869518-1 blueprints. The engineer's report indicated due to the unique STC installation, "...a dimensional 'stack' to check the fit of the customized tube on the engine was not performed." The engineer's report is appended.

Aircraft

Registration
N231LJ
Reported as
Beech 18
Category
Airplane
Serial number
23835
Airframe hours
24,892
Engine
Garrett TPE 331-6-252, 715 horsepower, turbo prop
Damage
Substantial damage
Fire
On-Ground
Flight
Positioning · Part 91
Operator
Kalitta Flying Service, Inc.
Registered owner
Kalitta Flying Service, Inc.
Airworthiness certificate
Standard, Normal; Special, Provisional (Special)
Last inspection
AAIP · May 22, 1994 · 94 hours before
Departed
SUS · St. Louis, MO
Flight plan
IFR
Airport
YIP · Detroit-Willow Run, runway 27L, 6,511 × 160 ft, asphalt

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
26
Certificates
Flight instructor, Airline transport, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
4,650 total · 1,900 in this make and model · 4,150 as pilot in command · 280 in the last 90 days · 95 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 15 knots, gusting 25
Visibility
4 statute miles
Temperature
88 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

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

Other investigations on N231LJ · 1

Matched to the same aircraft by N-number and date.