# SDR ASAA2013022694000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 26, 2013
- Submitted: February 28, 2013
- Operation: Air carrier
- Aircraft: [N586AS](https://openairdocs.org/aircraft/N586AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35189
- Aircraft time: 20,694 hours, 6,514 cycles
- System (JASC): [2810 · Fuel Storage](https://openairdocs.org/jasc/2810)
- Part: Fuel Cell
- Condition: Contaminated
- Location: Nr 2
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2013022694000

## Discrepancy

AT THE GATE IN OAK BOTH FUEL TANKS NR 1 & NR 2 READ 8.54 (FULL).  DURING CLIMB NR 2 TANK INDICATED 8.18 (DROP OF APPROX 400 LBS) WHILE STILL BURNING FROM CENTER TANK. IMMEDIATELY UPON LEVEL OFF AT CRUISE ALT NR 2 TANK QTY STEADILY INCREASED TO 8.66.  NR 1 FUEL TANK INDICATION WAS STEADY AT 8.54 UNTIL AFTER A SHORT TIME AT CRUISE THEN WENT FROM 8.54 TO 8.94 (400 LB INCREASE).  FQIS BITE INDICATES ATA 28-41108 NR 1 TANK DEGRADED COMPENSATOR DATA BAD.  ACCESSED TANK AND REMOVED ICE AND RESIDUAL WATER FROM NR 1 TANK.  NR 1 FQIS OP CHECKED NORMAL REF AMM 28-41-00-730-801. ACCESSED TANK AND REMOVED ICE AND RESIDUAL WATER FROM NR 2 TANK. NR 2 FQIS OPS NORMAL REF AMM 28-41-00-730-801.

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