# SDR AALA2019081219008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 10, 2019
- Submitted: August 12, 2019
- Operation: Air carrier
- Aircraft: [N179UW](https://openairdocs.org/aircraft/N179UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1521
- Aircraft time: 61,128 hours, 22,941 cycles
- System (JASC): [2920 · Hydraulic System, Auxiliary](https://openairdocs.org/jasc/2920)
- Part: Ptu
- Part number: 971600
- Part serial: MX641008
- Condition: Overtemp
- Location: Hyd System
- Part time: 61,128 hours, 22,941 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2019081219008

## Discrepancy

AIRCRAFT WAS GROUNDED: PILOT DECLARED EMERGENCY ON ACCOUNT OF GREEN HYDRAULIC SYSTEM OVERHEAT. MAINTENANCE REMOVED AND REPLACED HYDRAULIC POWER TRANSFER UNIT IAW AMM 29-23-41. OPS AND LEAK CHECK GOOD.

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