Small aircraft experiences fuel siphoning emergency landing.

Attributes
ACN	182203
Time
Date	199106
Day	Sun
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : lns
State Reference	PA
Altitude	agl bound lower : 0 agl bound upper : 7500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	descent other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 30
ASRS Report	182203
Events
Anomaly	aircraft equipment problem : critical conflict : ground critical other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	flight crew : declared emergency none taken : unable
Consequence	other Other
Supplementary
Primary Problem	Aircraft

Narrative:

I departed tifton, GA, at xx pm with full fuel, 61 gals, 60 usable gallons. While descending into lns at xx + 4:00, my engine began to miss. While on approach power surged several times and then the engine failed completely. I performed my emergency engine failure checklist to no avail. I executed an emergency landing on us route 222, north of lancaster. During landing on route 222, my right wing and tail contacted a medium blue colored van. The van was on my right side in my blind spot, and was not seen by me. It was determined the right wing fuel filler cap was siphoning fuel out of the tank. I should have had over 1 hour of fuel remaining after landing at lns. A suggestion might be to have fuel tank caps be pressure checked on annuals.

Original NASA ASRS Text

Title: SMA EXPERIENCES FUEL SIPHONING EMERGENCY LNDG.

Narrative: I DEPARTED TIFTON, GA, AT XX PM WITH FULL FUEL, 61 GALS, 60 USABLE GALLONS. WHILE DSNDING INTO LNS AT XX + 4:00, MY ENG BEGAN TO MISS. WHILE ON APCH PWR SURGED SEVERAL TIMES AND THEN THE ENG FAILED COMPLETELY. I PERFORMED MY EMER ENG FAILURE CHKLIST TO NO AVAIL. I EXECUTED AN EMER LNDG ON US RTE 222, N OF LANCASTER. DURING LNDG ON RTE 222, MY RIGHT WING AND TAIL CONTACTED A MEDIUM BLUE COLORED VAN. THE VAN WAS ON MY RIGHT SIDE IN MY BLIND SPOT, AND WAS NOT SEEN BY ME. IT WAS DETERMINED THE RIGHT WING FUEL FILLER CAP WAS SIPHONING FUEL OUT OF THE TANK. I SHOULD HAVE HAD OVER 1 HR OF FUEL REMAINING AFTER LNDG AT LNS. A SUGGESTION MIGHT BE TO HAVE FUEL TANK CAPS BE PRESSURE CHKED ON ANNUALS.

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.