# SDR AALA202501159236

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2025
- Submitted: January 15, 2025
- Operation: Air carrier
- Aircraft: [N816NN](https://openairdocs.org/aircraft/N816NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31081
- Aircraft time: 45,312 hours, 18,954 cycles
- System (JASC): [2840 · Fuel Indicating System](https://openairdocs.org/jasc/2840)
- Part: Compensator
- Part number: 2020201
- Condition: Inoperative
- Location: Zone 100
- Stage of operation: NR
- 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/AALA202501159236

## Discrepancy

AIRCRAFT WAS GROUNDED: CENTER FUEL TANK WILL NOT BURN BELOW 0.11 LBS, TRIED CYCLING LEFT AND RIGHT FUEL PUMPS ON AND OFF, QUANTITY INCREASED TO 0.21 AND WOULD NOT BURN DOWN. DURING TROUBLESHOOTING, TRANSFERRED 5,000 LBS FUEL TO CENTER TANK. ATEMPTED TO TRANSFER 5,000 LBS OF FUEL FROM CENTER TANK TO LEFT AND RIGHT WINGS, AND CENTER TANK STOPS TRANSFERRING 920LBS OR .92 PN LOWER EICAS DISPLAY. CONFIRMED FUEL QUANTITY FOR CENTER TANK INACCURATE, PER AMM 28-41-00. **SUPPLEMENTAL REPORT FOR (AALA202501137877): REMOVED AND REPLACED TANK COMPENSATOR, TANK NUMBER 4 (AALA202501137877) AND 5 (AALA202501159236). PER AMM 28-41-21-401. BITE CHECKS GOOD**(CLOSED).

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