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NTSB Report
August 30, 1986 · Great Lakes 2T-1A-2 · N6198L
Houston, TX
Overview
Report Status
Preliminary report
Event Type
Accident
Date
August 30, 1986
Injury Outcomes
1 injury (1 fatality)
Location
Houston, TX
Aircraft
Great Lakes 2T-1A-2
Tail Number
N6198L
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
FTW86FA156
THE ENDS OF THE OUTER STRING AND THE INNER REINFORCING WIRE OF THE ENGINE AIR INTAKE DUCT WERE NOT PROPERLY POSITIONED UNDER THE DUCT CLAMP DURING INSTALLATION. AS A RESULT, THEY UNWOUND DURING ENGINE OPERATION AND MOVED OUT OF THEIR NORMAL POSITION ON AND IN THE DUCT RESPECTIVELY. THIS ALLOWED THE WALL OF THE DUCT TO LOSE ITS RIGIDITY AND COLLAPSE WHICH RESULTED IN A LOSS OF ENGINE INTAKE AIR AND SUBSEQUENT POWER FAILURE. THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT WITH ONLY 100 FEET OF ALTITUDE. THE ACFT STALLED DURING THE TURN WITH INSUFFICIENT ALT TO RECOVER BEFORE IMPACT OCCURRED.
Full Narrative
THE ENDS OF THE OUTER STRING AND THE INNER REINFORCING WIRE OF THE ENGINE AIR INTAKE DUCT WERE NOT PROPERLY POSITIONED UNDER THE DUCT CLAMP DURING INSTALLATION. AS A RESULT, THEY UNWOUND DURING ENGINE OPERATION AND MOVED OUT OF THEIR NORMAL POSITION ON AND IN THE DUCT RESPECTIVELY. THIS ALLOWED THE WALL OF THE DUCT TO LOSE ITS RIGIDITY AND COLLAPSE WHICH RESULTED IN A LOSS OF ENGINE INTAKE AIR AND SUBSEQUENT POWER FAILURE. THE PILOT ATTEMPTED TO RETURN TO THE AIRPORT WITH ONLY 100 FEET OF ALTITUDE. THE ACFT STALLED DURING THE TURN WITH INSUFFICIENT ALT TO RECOVER BEFORE IMPACT OCCURRED.
Flight
Event TypeAccident
Event Time14:00 CDT
Nearest AirportLAKESIDE (0nm SE)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftGreat Lakes 2T-1A-2
Tail NumberN6198L
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · AEIO-360-B1G6 · Reciprocating · 180
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 60 · Third Class
Conditions
ConditionsVMC
LightDaylight
Wind50° @ 6 kt
Visibility12 sm
CeilingNone
Temperature / Dew Point68 F
Altimeter30.00 inHg
Observation Time18:51
Weather SourceWFAC