# SDR ASMF202106009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2021
- Submitted: June 23, 2021
- Operation: Air carrier
- Aircraft: [N377AR](https://openairdocs.org/aircraft/N377AR), registered now
- Make and model: Boeing 737-86J
- Registry model: [Boeing 737-86J](https://openairdocs.org/model/boeing-737-86j) (OpenAirDocs)
- Aircraft serial: 37753
- Aircraft time: 35,126 hours, 16,071 cycles
- System (JASC): [2913 · Hydraulic Pump (Electric/Engine), Main](https://openairdocs.org/jasc/2913)
- Part: Pump
- Condition: Leaking
- Location: Hyd System
- Stage of operation: IN
- How discovered: 9
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASMF202106009

## Discrepancy

DURING TRANSIT CHECK, A HYDRAULIC LEAK WAS DETECTED AT LEFT ENGINE. MAINTENANCE PERSONNEL PERFORMED REVISION, DETECTING A HYDRAULIC LEAK AT LEFT ENGINE ELECTRICAL HYDRAULIC PUMP (EDP); SO THE LEFT ENGINE EDP WAS REPLACED IAW AMM 29-11-11, TESTED CORRECT.

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