# SDR ASAA0954295

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2009
- Submitted: January 28, 2009
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 7,433 hours, 2,194 cycles
- System (JASC): [2842 · Fuel Quantity Sensor](https://openairdocs.org/jasc/2842)
- Part: Probe
- Part number: 2020201
- Condition: Faulty
- Location: Nr 1 Tank
- Stage of operation: CL
- 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/ASAA0954295

## Discrepancy

SHORTLY AFTER T/O THE LT FUEL QTY WAS NOTED TO BE 8.18 AND REMAINED STEADY THRU SEVERAL CLIMBS AND LEVEL OFFS UNTIL APPROX 33,000.  WHILE CLIMBING THE LT FUEL QTY BEGAN INCREASING AT A RATE OF ABOUT 10 POUNDS PER SECOND UP TO 8.65.  WE REBALANCED LT AND RT TANKS AT 8.12 WHERE IT REMAINED FOR THE NEXT SEVERAL HOURS UNTIL EMPTY.  GROUNDED YES.  R&R NR 1 TANK COMPENSATOR PROBE.  OPS AND SYSTEM TEST OK REF AMM 28 41 21/401.

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