# SDR AALA202601228764

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 21, 2026
- Submitted: January 22, 2026
- Operation: Air carrier
- Aircraft: [N865NN](https://openairdocs.org/aircraft/N865NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 29554
- Aircraft time: 44,687 hours, 19,095 cycles
- Engine: Cfmint CFM567B242
- System (JASC): [7320 · Fuel Controlling System](https://openairdocs.org/jasc/7320)
- Part: Fuel
- Condition: Out Of Balance
- Location: Nr 1 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202601228764

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AT CRUISE NOTICED ENGINE #1 WAS IMBALANCED; EXPECTED FUEL AT DESTINATION WAS INDICATING 11K LBS AND WAS DROPPING FAST TO 10KLBS. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT PHX. VERIFIED LEFT HAND FUEL QUANTITY INOPERATIVE.  (OPEN).

---
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.