# SDR F3LA200100100

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 21, 2001
- Submitted: August 24, 2001
- Operation: Air carrier
- Aircraft: N271FL
- Make and model: Boeing 737-2L9
- Registry model: [Boeing 737-2L9](https://openairdocs.org/model/boeing-737-2l9) (OpenAirDocs)
- Aircraft serial: 22734
- Aircraft time: 48,525 hours, 29,751 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: B-Nut
- Condition: Loose
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA200100100

## Discrepancy

AIR TURNBACK, FLIGHT CREW REPORTED LOSS OF A-SYSTEM HYDRAULIC PRESSURE AND QUANTITY.  TIGHTENED NR 1 ENGINE SUPPLY LINE B-NUT, REPLACED NR 1 ENGINE CASE DRAIN FILTER.  PERFORMED LEAK CHECK AND OPERATIONAL CHECK AND CHECKED OKAY.

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