MIAMI, FL, USA
N40790
PIPER PA-31-350
PLT JUDGED BY REFERENCE TO ACFT GAGES THAT HE HAD 156 GALS OF FUEL REMAINING WHEN INFACT ONLY 120 GALS OF FUEL REMAINED.ON APPROACH FOR LNDG, WHILE OPERATING ON AUX TANKS, LOW FUEL FLOW WARNING LIGHT ILLUMINATED. PLT SWITCHED TO MAIN TANKS AND BOTH ENGINES LOST POWER SHORTLY THEREAFTER WHILE ACFT WAS ON FINAL APPROACH. PLT DID NOT ATTEMPT TO REGAIN POWER BY SWITCHING BACK TO AUX TANKS SINCE WARNING LIGHT ILLUMINATION INITIATED DURING AUX TANK OPERATION. RIGHT MAIN GEAR COLLAPSED, OTHER GEAR SEPARATED ON FORCED LANDING SHORT OF THE RUNWAY IN ROUGH TERRAIN. ACFT MANUAL STATES LOW FUEL FLOW WARNING LIGHTS INDICATE CONDITION OF MAIN TANKS ONLY. PLT DID NOT UNDERSTAND THIS TO BE TRUE REGARDLESS OF TANK SELECTION. INVESTIGATION REVEALED MAIN TANKS CONTAINED ONLY RESIDUAL FUEL; AUX TANKS HAD APPROX 6 GALS EACH.
Source: NTSB Aviation Accident Database
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