B737-300 contacts truck while taxiing to gate at phx.

Attributes
ACN	444480
Time
Date	199907
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phx.airport
State Reference	AZ
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 3000
ASRS Report	444480
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 220 flight time total : 6700 flight time type : 1850
ASRS Report	444479
Events
Anomaly	conflict : ground critical ground encounters : vehicle
Independent Detector	other flight crewa other flight crewb other other : 4
Resolutory Action	none taken : anomaly accepted
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Airport Company
Primary Problem	Ambiguous

Narrative:

In phx, I had completed normal taxi on taxiway C with ground control, and first officer had secured permission from ramp control 131.77 to enter and proceed to taxiway K for gate X. At normal taxi speed and with no visible obstacles, left or right, had entered taxiway K on centerline when approximately abeam gate Y. I was completely surprised by impact of unknown origin to aircraft. Brakes were applied at a full stop accomplished. With stop complete, I looked under left wing and saw an overturned truck. First officer advised cabin crew to remain seated and both engines were shut down normally. Advised by ground personnel of no fuel spill from aircraft or truck. Cabin crew assured no injuries to crew or passenger. Mins later, aircraft was towed to gate X for normal deplaning.

Original NASA ASRS Text

Title: B737-300 CONTACTS TRUCK WHILE TAXIING TO GATE AT PHX.

Narrative: IN PHX, I HAD COMPLETED NORMAL TAXI ON TXWY C WITH GND CTL, AND FO HAD SECURED PERMISSION FROM RAMP CTL 131.77 TO ENTER AND PROCEED TO TXWY K FOR GATE X. AT NORMAL TAXI SPD AND WITH NO VISIBLE OBSTACLES, L OR R, HAD ENTERED TXWY K ON CTRLINE WHEN APPROX ABEAM GATE Y. I WAS COMPLETELY SURPRISED BY IMPACT OF UNKNOWN ORIGIN TO ACFT. BRAKES WERE APPLIED AT A FULL STOP ACCOMPLISHED. WITH STOP COMPLETE, I LOOKED UNDER L WING AND SAW AN OVERTURNED TRUCK. FO ADVISED CABIN CREW TO REMAIN SEATED AND BOTH ENGS WERE SHUT DOWN NORMALLY. ADVISED BY GND PERSONNEL OF NO FUEL SPILL FROM ACFT OR TRUCK. CABIN CREW ASSURED NO INJURIES TO CREW OR PAX. MINS LATER, ACFT WAS TOWED TO GATE X FOR NORMAL DEPLANING.

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.