# SDR ASAA2018012623307

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 26, 2018
- Submitted: January 29, 2018
- Operation: Air carrier
- Aircraft: [N518AS](https://openairdocs.org/aircraft/N518AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35693
- Aircraft time: 34,472 hours, 10,295 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Probe
- Part number: 2020002120208020
- Condition: Out Of Tolerance
- Location: Nr 1 Fuel Tank
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018012623307

## Discrepancy

DURING A FUEL QTY INDICATING SYSTEM CHECK,  FOUR  NR 1 FUEL TANK PROBES IDENTIFIED AS CAPACITANCE OUT OF LIMITS.  TANK UNITS ARE F1, F6, F8 AND F10.   ACFT GROUNDED.  NR 1 FUEL TANK DEFUELED AND SUMPED.  REPLACED THE TANK PROBES F1, F6, F8 AND F10 IAW AMM 28-41-21-400-801, OPS NORMAL IAW AMM 28-41-00-730-801.  ACCOMPLISHED A FUEL QUANITY INDICATOR OPERATIONAL TEST, OPS NORMAL.  ACCOMPLISHED ACCESS PANEL LEAK CHECK, NO LEAKS, OPS NORMAL IAW AMM 28-22-41-420-801.

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