# SDR ASAA2019020828137

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2019
- Submitted: February 12, 2019
- Operation: Air carrier
- Aircraft: [N592AS](https://openairdocs.org/aircraft/N592AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35190
- Aircraft time: 42,187 hours, 12,772 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Compensator
- Part number: 2020201
- Part serial: 4467
- Condition: Failed
- Location: Fuel Tank
- Part time: 8,247 hours, 2,369 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2019020828137

## Discrepancy

TECH SERVICES REQUEST, DUE TO RECENT FUEL IMBALANCE ISSUE, CHECK NR 1 (LEFT) FUEL TANK UNIT VALUES. GROUNDED - YES. PERFORMED CAPACITANCE CHECK IAW AMM 28-41-21-710-801. ALL CHECKS GOOD. WILL REQUIRE FQIS BITE AFTER LEAK CHECK. REPLACED COMP PROBE AND TANK UNITS F1-F9. ALL OPS NML, REF AMM 28-41-21, 28-11-11. LEAK CHECK GOOD. FQIS BITE SHOWS NO FAULTS, GROUND TEST GOOD.

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