# SDR ASAA2020012401952

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 20, 2020
- Submitted: January 25, 2020
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 49,654 hours, 14,704 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Compensator
- Part number: 2020201
- Part serial: 6316
- Condition: Failed
- Location: Rt Main Fuel
- Part time: 51,612 hours, 15,072 cycles
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2020012401952

## Discrepancy

CHECK #2 (RIGHT) FUEL TANK UNIT VALUES. GROUNDED - YES. REPLACED ALL #2 TANK FQIS TANK UNITS AND COMPENSATOR UNITS ON TANK-TIGERS W/O 12046M84-R-0-8. #2 TANK COMPENSATOR RESISTANCE AND CAPACITANCE CKS GOOD IAW B737 800 AMM 28 41 21 710 801.

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