Narrative:

Aircraft xyz arrived in ZZZ with #2 fuel qty indicator deferred inoperative. Inbound to ZZZ #1 fuel qty indicator malfunctioned. Drain #2 main tank to center tank and metered known amount of fuel into #2 main tank. Dripped both main tanks all figures matched. Cleared deferred for #2 main and deferred #1 main as inoperative. Both main tank indicators failed in-flight. Aircraft diverted, and was ferried to YYY for repair.

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Original NASA ASRS Text

Title: A B737-300 WAS DISPATCHED IN NON COMPLIANCE WITH 2 MAIN TANK FUEL QUANTITY INDICATORS INOP IN CONFLICT WITH THE MEL.

Narrative: ACFT XYZ ARRIVED IN ZZZ WITH #2 FUEL QTY INDICATOR DEFERRED INOP. INBOUND TO ZZZ #1 FUEL QTY INDICATOR MALFUNCTIONED. DRAIN #2 MAIN TANK TO CTR TANK AND METERED KNOWN AMOUNT OF FUEL INTO #2 MAIN TANK. DRIPPED BOTH MAIN TANKS ALL FIGURES MATCHED. CLRED DEFERRED FOR #2 MAIN AND DEFERRED #1 MAIN AS INOP. BOTH MAIN TANK INDICATORS FAILED INFLT. ACFT DIVERTED, AND WAS FERRIED TO YYY FOR REPAIR.

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.