# SDR AALA201907119017

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2019
- Submitted: July 12, 2019
- Operation: Air carrier
- Aircraft: [N927NN](https://openairdocs.org/aircraft/N927NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31171
- Aircraft time: 19,717 hours, 8,062 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic Line
- Part number: 272A4451158
- Condition: Leaking
- Location: Zone 100
- 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/AALA201907119017

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT RETURNED TO ORD ON ACCOUNT OF NUMBER 2 HYDRAULIC SYSTEM FAILURE. EMERGENCY WAS DECLARED. MAINTENANCE FOUND A LEAKING HYDRAULIC LINE. REMOVED AND REPLACED THE HYDRAULIC LINE IAW AMM.

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