Aviation Accident Summaries

Aviation Accident Summary ATL85MA177

NASHVILLE, TN, USA

Aircraft #1

N181TG

GULFSTREAM G-159

Analysis

THE ACFT WAS BEING OPERATED AS GENERAL AVIATION FLT 115 & WAS DEPTG ON A ROUTINE NIGHT FLT. DRG TAKEOFF/INITIAL CLIMB, THE LEFT ENG LOST PWR. THE FLT CREW ATTEMPTED TO CONT THE CLIMB-OUT, BUT FOLLOWING THE APPLICATION OF WATER-METHANOL, THE PLT LOST DRCTNL CONTROL. SUBSEQUENTLY, THE ACFT BANKED TO THE LEFT, ENTERED A DSCNT & IMPACTED BETWEEN THE PARALLEL RWYS. AN INVESTIGATION DISCLOSED THAT THE LEFT PROPELLER'S BLADE ANGLE WAS 21 DEGS. NO PREIMPACT SYS MALFUNCTION OR FAILURE WAS FOUND. THE COCKPIT VOICE RECORDING INDICATED THAT THE FLT CREW DID NOT COMPLETE ALL OF THE ITEMS ON THE BEFORE TAXI/TAKEOFF CHECKLIST. ONE OF THE ITEMS (PRESUMABLY NOT COMPLETED) WAS A CHECK OF THE H.P. COCK LEVERS. THE CHECKLIST REQUIRED THAT THE H.P. COCK LEVERS BE IN 'CRUISE LOCKOUT' FOR TAKEOFF. THE LEFT H.P. COCK LEVER WAS FOUND BETWEEN THE 'FUEL OFF' & 'FEATHER' POSITIONS. MOVEMENT TO THIS POSITION WOULD HAVE DEACTIVATED THE AUTO-FEATHER SYS & SHUT DOWN THE LEFT ENG.

 

Source: NTSB Aviation Accident Database

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