# SDR AALA20170123024

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2017
- Submitted: January 25, 2017
- Operation: Air carrier
- Aircraft: [N108NN](https://openairdocs.org/aircraft/N108NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5946
- Aircraft time: 11,100 hours, 2,239 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: D2901010201200
- Condition: Leaking
- 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/AALA20170123024

## Discrepancy

DURING CLIMB THE CREW REPORTED A LOUD BANG ACCOMPANIED BY COMPLETE LOSS YELLOW HYDRAULIC SYSTEM QUANTITY.  AIRCRAFT WAS GROUNDED.  EMERGENCY DECLARED.  MAINTENANCE FOUND THE NR 2 ENGINE THRUST REVERSER HYDRAULIC PRESSURE LINE CHAFED AND LEAKING. REMOVED AND REPLACED LINE IAW AMM 29-13-49. SYSTEM CHECKS NORMAL.

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