# SDR SWAA2023102615188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 23, 2023
- Submitted: October 26, 2023
- Operation: Air carrier
- Aircraft: [N218WN](https://openairdocs.org/aircraft/N218WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 32489
- Aircraft time: 60,633 hours, 36,559 cycles
- System (JASC): [7314 · Engine Fuel Pump](https://openairdocs.org/jasc/7314)
- Part: Pump
- Part number: UNKNOWN
- Condition: Slow
- Location: Zn 400 Nacelle/P
- Stage of operation: TO
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023102615188

## Discrepancy

NUMBER 1 ENGINE NOTICEABLY SLOW TO SPOOL UP WITH THROTTLES IN SAME POSITION. FMC COMMANDED TAKEOFF N1 SETTINGS APPROXIMATELY 1% DIFFERENT DURING TAKEOFF (#1=87.1; #2=86.3).<[01] REMOVED AND REPLACED #1 ENG HMU AND FUEL PUMP PER AMM 73-11-11;[02] COMPLIED WITH RII AS PER MT 773-11-00

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