# SDR ASAA0752105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2007
- Submitted: October 16, 2007
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 5,075 hours, 1,464 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Processor
- Part number: 3012803
- Condition: Intermittent
- Location: Fuel Qty
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0752105

## Discrepancy

IN CRUISE AT FL390 CTR TANK QUANTITY & TOTAL FUEL QUANTITY DISPLAYS BLANKED.  FMC AMBER P RST LIGHT ILLUMINATED.  FMC SCRATCH PAD NOTE "VERIFY GW & FUEL QTY" ILLUMINATED.  DISPLAY RETURNED TO NORMAL AFTER ABOUT 60 MINUTES.  FQIS FFR SHOWS 2 FLTS WITH CENTER QTY BLANK.  ONE OR MORE TANK UNITS OPEN FAULT.  CENTER TANK INDICATOR CURRENTLY GOOD.  CURRENT STATUS AND GROUND TEST GOOD.

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