Narrative:

Flight planning and standard WX briefing with forecast of winds at our cruising altitude used in our calculations, showed we should have up to 2 extra hours of fuel past our refueling point, at economy cruise. We encountered turbulence and increased headwinds beyond predictions and some windshear . At our last check point, a VOR near an alternate airport with fuel, I decided to go on based on a fuel gauge reading, that seemed to be right based on fuel burn for economy cruise speeds. The plane ran out of fuel 4 mi east of the airport, and we didn't have enough altitude to glide to the airport. We landed on a highway just outside of town, with no damage and no injuries to anyone! Factors: 1) turbulence combined with efforts to maintain altitude burned fuel at a faster rate. 2) a sticking fuel gauge needle gave a false reading, we could have landed at a closer airport, if the gauge read right. Future: 1) add '1/3 plus' to the burn rate calculations when moderate turbulence is encountered. 2) don't trust gas gauges, only trust time at burn rate and add in 1/3 factor for turbulence, and 3) really monitor ground speeds.

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Original NASA ASRS Text

Title: PA28 PLT HAS FUEL STARVATION DURING CRUISE AND EXECUTES AN OFF FIELD LNDG.

Narrative: FLT PLANNING AND STANDARD WX BRIEFING WITH FORECAST OF WINDS AT OUR CRUISING ALT USED IN OUR CALCULATIONS, SHOWED WE SHOULD HAVE UP TO 2 EXTRA HRS OF FUEL PAST OUR REFUELING POINT, AT ECONOMY CRUISE. WE ENCOUNTERED TURB AND INCREASED HEADWINDS BEYOND PREDICTIONS AND SOME WINDSHEAR . AT OUR LAST CHK POINT, A VOR NEAR AN ALTERNATE ARPT WITH FUEL, I DECIDED TO GO ON BASED ON A FUEL GAUGE READING, THAT SEEMED TO BE RIGHT BASED ON FUEL BURN FOR ECONOMY CRUISE SPDS. THE PLANE RAN OUT OF FUEL 4 MI E OF THE ARPT, AND WE DIDN'T HAVE ENOUGH ALT TO GLIDE TO THE ARPT. WE LANDED ON A HWY JUST OUTSIDE OF TOWN, WITH NO DAMAGE AND NO INJURIES TO ANYONE! FACTORS: 1) TURB COMBINED WITH EFFORTS TO MAINTAIN ALT BURNED FUEL AT A FASTER RATE. 2) A STICKING FUEL GAUGE NEEDLE GAVE A FALSE READING, WE COULD HAVE LANDED AT A CLOSER ARPT, IF THE GAUGE READ RIGHT. FUTURE: 1) ADD '1/3 PLUS' TO THE BURN RATE CALCULATIONS WHEN MODERATE TURB IS ENCOUNTERED. 2) DON'T TRUST GAS GAUGES, ONLY TRUST TIME AT BURN RATE AND ADD IN 1/3 FACTOR FOR TURB, AND 3) REALLY MONITOR GND SPDS.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.