# SDR AALA202510021275

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 2025
- Submitted: October 2, 2025
- Operation: Air carrier
- Aircraft: [N973NN](https://openairdocs.org/aircraft/N973NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31219
- Aircraft time: 30,620 hours, 13,085 cycles
- Engine: Cfmint CFM567B20
- Engine time: 30,632 hours, 13,089 cycles
- System (JASC): [7314 · Engine Fuel Pump](https://openairdocs.org/jasc/7314)
- Part: Pump
- Part number: 8283005
- Part serial: YA057986
- Condition: Inoperative
- Location: Nr 1 Engine
- Part time: 30,620 hours, 13,085 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: R, J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202510021275

## Discrepancy

AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: AFTER TAKEOFF N1 HAD A 7 PERCENT SPLIT AND ENGINE SHUTDOWN ON ITSELF. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT ORD.  REMOVED AND REPLACED ENGINE FUEL PUMP PACKAGE (AALA202509307020). ALSO, NUMBER 1 ENGINE REQUIRES NEW FUEL PUMP, INSTALLED FUEL PUMP (AALA202510021275). PER AMM 73-11-11 AND JC 08L40073001. OPERATIONAL AND LEAK CHECK GOOD.

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