# SDR AALA202605200683

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2026
- Submitted: May 21, 2026
- Operation: Air carrier
- Aircraft: [N886NN](https://openairdocs.org/aircraft/N886NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33223
- Aircraft time: 41,687 hours, 17,949 cycles
- System (JASC): [2841 · Fuel Quantity Indicator](https://openairdocs.org/jasc/2841)
- Part: Comparator
- Part number: 2020201
- Condition: Failed
- Location: Zone 600
- Stage of operation: CR
- 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/AALA202605200683

## Discrepancy

AIRCRAFT WAS GROUNDED: AT FL400 RIGHT FUEL REMAINING STARTED DROPPING FROM 7.0 REMAINING TO ABOUT 4.0 REMOVED AND REPLACED NUMBER 2 MAIN TANK FUEL COMPENSATOR PROBE. PER 28-41-21-401. PERFORMED B737 AMM 28-41-00-730-801 AND 28-41-21-710-801 DRY CAP AND RESISTANCE CAPACITY CHECK AND BITE CHECK GOOD.

---
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.