# SDR SWAA2021122756023

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 23, 2021
- Submitted: December 27, 2021
- Operation: Air carrier
- Aircraft: [N7732A](https://openairdocs.org/aircraft/N7732A), registered now
- Make and model: Boeing 737-7BD
- Registry model: [Boeing 737-7BD](https://openairdocs.org/model/boeing-737-7bd) (OpenAirDocs)
- Aircraft serial: 34861
- Aircraft time: 50,691 hours, 29,929 cycles
- System (JASC): [7100 · Powerplant System](https://openairdocs.org/jasc/7100)
- Part: Pump
- Condition: Failed
- Location: #1 Eng
- Stage of operation: UK
- 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/SWAA2021122756023

## Discrepancy

NO1 ENG HYDRAULIC LOW PRESS LIGHT ; / [01] REPLACED #1 ENGINE HYDRAULIOC PUMP PER M/M 29-11-11. REPLACED #1 ENGINE HYDRAULIC SUPPLY AND PRESSURE LINES AS PRECAUTIONARY PER M/M 20-10-52. REPLACED #1 ENGINE ?A? SYSTEM CASE DRAIN FILTER; ?A? SYSTEM ENGINE PRESSURE FILTER AND ?A? SYSTEM ELECTRIC PRISSURE FILTER PER M/M 29-11-41. OPS CHECKS OK.

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