# SDR AALA201510169001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 15, 2015
- Submitted: October 16, 2015
- Operation: Air carrier
- Aircraft: [N519UW](https://openairdocs.org/aircraft/N519UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3881
- Aircraft time: 23,888 hours, 8,033 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Packing
- Condition: Damaged
- Location: Hydraulic Sys
- Stage of operation: DE
- How discovered: O
- Nature of condition: K
- Precautionary procedure: B
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA201510169001

## Discrepancy

INBOUND, THE YELLOW HYD SYS WAS LOST AT 9000 FEET.  THE CAPTAIN DECLARED AN EMER & LANDED ON RUNWAY 36C.  THE ACFT WAS TOWED TO THE GATE AS THE LOSS OF THE YELLOW SYS RESULTS IN THE LOSS OF NOSE WHEEL STEERING.  FOUND A DAMAGED PACKING FOR THE UNION ATTACHING THE TEE FITTING TO THE TOP OF THE MAIN HYD PRESS MANIFOLD IN THE WW AREA.  THE DAMAGED PACKING WAS REPLACED & A SATISFACTORY LEAK & OPERATIONAL CHECK WAS ACCOMPLISHED IAW AMM 29-13-14-400.

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