# SDR ASAA2018080865700

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2018
- Submitted: August 8, 2018
- Operation: Air carrier
- Aircraft: [N579AS](https://openairdocs.org/aircraft/N579AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35187
- Aircraft time: 43,739 hours, 13,028 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Module
- Condition: Malfunctioned
- Location: Fuel System
- Part time: 43,753 hours, 13,034 cycles
- Stage of operation: TX
- 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/ASAA2018080865700

## Discrepancy

DURING PREFLIGHT, THE RIGHT SIDE FWD FUEL LOW PRESSURE LIGHT ILLUMINATED.  ACFT GROUNDED.  OPS CHECKED THE RIGHT SIDE FWD FUEL BOOST PUMP,  OPS NORMAL IAW AMM 28-22-41.  REMOVED AND REPLACED R21 GFI RELAY AND P5-2 FUEL SYS MODULE AS PRECAUTION IAW AMM 28-22-18/401, AND 28-22-43/401.  PERFORMED AN OPS CHECKS FOR THE PRESS SWITCH, BOOST PUMP, GFI RELAY, AND P5-2 FUEL SYS MODULE, ALL CHECKED GOOD IAW AMM 28-42-11, 28-22-41, AND 28-22-43.

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