MIA97LA003

NTSB accident investigation · Socata TB-20 · Mobile, AL · October 7, 1996

Accident · Minor injuriesLimited investigationFinal report
Date
October 7, 1996, 17:53 local (22:53 UTC)
Place
Mobile, AL
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N59TBSocata TB-20
Weather
Visual (VMC) · Day
Status
Completed · report April 3, 1997
Report
Approved by Office Director
FAA report
19961007043989A
Case key
38167

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 pilot's improper management of fuel, which resulted in fuel exhaustion and loss of engine power during a go-around, and subsequent collision with trees and terrain during a forced landing.

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) - nonmechanicalGo-around (vfr)
Fuel management - improperPilot in commandCause
Fluid,fuel - exhaustionCause
Forced landingEmergency descent/landing
In flight collision with objectEmergency landing
Object - tree(s)

Analysis

The pilot stated that after completing an ILS approach, he made a go-around. Shortly thereafter the engine began to sputter. The pilot reversed course and attempted a forced landing; however, the airplane collided with trees and terrain. Examination of the crash site revealed the left fuel tank was ruptured. There was no odor of fuel or evidence of any leakage of fuel. The right fuel tank was not ruptured, and no fuel was present in the right fuel tank. Also, no fuel was present in the fuel filter or fuel distributor valve. The engine was placed in an engine test cell. The engine started, developed power, and was operated for 20 minutes before being shut down.

Factual narrative

On October 7, 1996, about 1753 central daylight time, a Socata TB-20, N59TB, registered to Socata Aircraft, operating as a 14 CFR Part 91 corporate flight, crashed during a go-around in the vicinity of Mobile, Alabama. Visual meteorological conditions prevailed and an instrument flight plan was filed. The airplane sustained substantial damage. The airline transport pilot and one passenger reported minor injuries. The flight originated from Grand Prairie, Texas, about 4 hours 37 minutes before the accident.

The pilot stated he made an ILS approach to runway 32 at the Mobile Regional Airport. The airplane landed hard and started to porpoise down the runway. He initiated a go-around by adding full power and raising the flaps to 10 degrees. Upon establishing a positive rate of climb the landing gear and flaps were retracted, and the fuel pump was turned off. The engine started to sputter and lose power. He turned the fuel pump on and verified the mixture was full rich. He then moved the mixture lever aft about 1 inch and turned the fuel pump on and off with negative results. He started a turn to the left, the stall warning horn sounded, he pushed the nose down, and moved the landing gear selector to the down position. The left wing collided with a tree and the airplane impacted the ground.

Review of radio communication between N59TB, Grand Prairie Ground Control and Mobile Local Control revealed that N59TB requested to taxi from American Eurocopter at 1141 to Howell Aircraft Service for fuel N59TB departed Howell's ramp at 1209, taxied to runway 35, and departed on a VFR flight at 1215. N59TB landed at Grand Prairie at 1236 and taxied to parking. At 1348, N59TB requested to taxi, and picked up his IFR clearance to Mobile, Alabama. N59TB taxied to runway 35 and was cleared for take off at 1357. At 1742, N59TB was cleared for the ILS approach runway 32 at the Mobile Regional Airport, and reported initiating a go-around at 1749. N59TB informed the controller at 1750:45, "our engine is uh cutting out nine tango bravo." The controller cleared N59TB to land on any runway. The last recorded communication with N59TB was at 1752:49.

Examination of the crash site by the FAA revealed no evidence of a precrash mechanical failure of the airframe, flight controls, engine assembly and accessories. The left fuel tank was ruptured, and there was no browning of vegetation. The right fuel tank was not ruptured and no fuel was present. No fuel was present in the fuel filter or the fuel distributor. The propeller was bent aft with no evidence of torsional twisting. Fire and police officers who responded to the crash site reported no odor of fuel or evidence of leakage of fuel at the crash site.

The airplane wreckage was released to the Mobile Department of Public Safety Police Services on October 8, 1996.

The airplane wreckage was transported to Air Salvage of Dallas. The engine was placed in an engine test cell. The started, developed power and was operated for about 20 minutes.

Aircraft

Registration
N59TB
Reported as
Socata TB-20
Category
Airplane
Serial number
501
Airframe hours
2,163
Engine
Lycoming IO-540-C4D5D, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Executive/Corporate · Part 91
Registered owner
Socata Aircraft
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 10, 1996 · 7 hours before
Departed
GPM · Grand Prairie, TX
Destination
MOB
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
32
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
4,671 total · 255 in this make and model · 1,629 as pilot in command · 258 in the last 90 days · 81 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 17 knots
Visibility
10 statute miles
Lowest ceiling
2,100 ft overcast
Temperature
63 °F, dew point 55 °F
Altimeter
29.00 inHg
Observed at
MOB, 1 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.