# SDR AALA202405162453

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2024
- Submitted: May 16, 2024
- Operation: Air carrier
- Aircraft: [N904NN](https://openairdocs.org/aircraft/N904NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33317
- Aircraft time: 34,007 hours, 14,758 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Processor
- Part number: 3012803
- Part serial: 4326
- Condition: Faulty
- Location: Fuel Qty
- Part time: 9,467 hours, 4,511 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202405162453

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING CRUISE AT FL340 CENTER FUEL DISPLAY AND TOTAL DISPLAY BOTH WENT BLANK. REPLACED THE (FQPU)-PROCESSOR. ACCOMPLISHED FQPU BITE NO FAULTS, ALL TESTS  PASS. FQIS CHECKS NORMAL. PER AMM 28-41-81.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.