NTSB Identification: MKC88LA177.
The docket is stored on NTSB microfiche number 37698.
Accident occurred Sunday, September 25, 1988 in OMAHA, NE
Probable Cause Approval Date: 07/12/1989
Aircraft: AEROSPATIALE TB-20, registration: N31TB
Injuries: 4 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PLT RPRTD THAT WHEN THE ACFT WAS AT APRX 150' TO 200' AGL ON FINAL APCH, THE ENG LOST PWR & WOULD NOT RESTART. UNABLE TO RCH THE RWY, HE LNDD ABOUT 50' SHORT ON SOFT TRRN, WHERE THE GEAR COLLAPSED & THE ACFT WAS DMGD. ONLY ABOUT 12 OUNCES OF FUEL WAS REMAINING IN THE LEFT TANK, BUT 13 GAL WAS FND IN THE RGT TANK. DRG POST-ACDNT CHECKS, 3 GAL OF FUEL WAS ADDED TO THE LEFT TANK. HOWEVER, THE ENG WOULD NOT START IRREGARDLESS OF THE FUEL SELECTOR PSN. WHEN AN INDEPENDENT FUEL SOURCE WAS CONNECTED TO THE INLET FUEL LINE, THE ENG STARTED & OPERATED NORMALLY. HOWEVER, WHEN THE ENG WAS RECONNECTED TO THE ACFT FUEL SYS, IT RAN ONLY BRIEFLY & WOULD NOT RESTART, EVEN THOUGH FUEL IN THE TANKS EXCEEDED THE UNUSABLE LVL OF 1.3 GAL/TANK. A TEST OF THE BOOST PUMP SHOWED THAT AT 23 PSI, ITS FLOW RATE WAS 9 GPH; THE PUMP SPECIFICATION WAS FOR 35 GPH AT 23 PSI.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FLUID,FUEL..STARVATION

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FUEL TANK SELECTOR POSITION..IMPROPER..PILOT IN COMMAND


Contributing Factors

FUEL SYSTEM,ELECTRIC BOOST PUMP..OUTPUT LOW


Contributing Factors

FLUID,FUEL..LOW LEVEL


Contributing Factors

TERRAIN CONDITION..SOFT

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