# SDR AALA202605208658

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2026
- Submitted: May 21, 2026
- Operation: Air carrier
- Aircraft: [N821NN](https://openairdocs.org/aircraft/N821NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30912
- Aircraft time: 48,799 hours, 20,693 cycles
- System (JASC): [2820 · Aircraft Fuel Distribution System](https://openairdocs.org/jasc/2820)
- Part: Warning Message
- Condition: Illuminated
- Location: Fuel Sys
- Stage of operation: TO
- 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/AALA202605208658

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: DURING THE INITIATION OF THE TAKEOFF LOW PRESSURE LIGHT ON THE RIGHT CENTER TANK ILLUMINATED, FOLLOWED BY A MASTER CAUTION. THERE WAS 1,800LBS OF FUEL IN THE CENTER TANK.   TROUBLESHOT RIGHT HAND CENTER FUEL LOW PRESSURE LIGHT PER FIM 28-22-00-810-802. GVI OF R55 GFI CHECKS GOOD. CONTINUED TROUBLESHOOTING S155 CONNECTOR PIN 2 GROUND GOOD PIN 3 41.3 VDC CONNECTOR GOOD. CONTINUED TROUBLESHOOTING BY TRANSFERRING 3000LB OF FUEL FROM CENTER TANK USING RIGHT HAND CENTER PUMP UNABLE TO DUPLICATE FAULT. PER FIM 28-22-00-810-802 SUB TASK 810-007 (6) SUSPECTED INTERMEDIATE FAULT, NO FAULT FOUND.

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