# SDR SWAA2023092609219

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 25, 2023
- Submitted: June 5, 2026
- Operation: Air carrier
- Aircraft: [N925WN](https://openairdocs.org/aircraft/N925WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36630
- Aircraft time: 50,322 hours, 30,478 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Part number: 887477
- Part serial: MX611989
- Condition: Leaking
- Location: Zone 100
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2023092609219

## Discrepancy

LOSS OF SYSTEM HYDRAULIC B;2 LOW-PRESSURE LTS AND QUANTITY ZERO.   REF #TTG8Q00NMN78 FOR JOB PERFORMED. R & R NR 2 ENG EDP PER AMM 29-11-11; R&R B SYS CASE DRAIN FILTERS PER AMM 29-11-41; R & R B HYD EMDP IAW AMM 29-11-21; R & R B SYS RETURN FILTER IAW AMM 29-11-61; R&R B SYS PRESSURE MODULE FILTER PER AMM 29-11-71.

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