# SDR USAA2014072500008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 24, 2014
- Submitted: July 25, 2014
- Operation: Air carrier
- Aircraft: [N542UW](https://openairdocs.org/aircraft/N542UW), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4134
- Aircraft time: 17,883 hours, 5,976 cycles
- System (JASC): [2912 · Hydraulic Filter, Main](https://openairdocs.org/jasc/2912)
- Part: Filter
- Part number: HYDRAULIC
- Condition: Restricted
- Location: Hydraulic Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014072500008

## Discrepancy

AIRCRAFT RETURNED TO FIELD & PILOT DECLARED AN EMER DUE TO YELLOW HYD SYS OVERHEAT AFTER DEPARTING.  RETURNED FOR PRECAUTIONARY LANDING.  SERVICED YELLOW HYD SERVER IAW MM 12-12-29 & REPLACED NR 2 ENG YELLOW HYD SYS PUMP HP FILTER IAW AMM 29-13-45.  RAN NR 2 ENG & PERFORMED OPERATIONAL TEST OF YELLOW HYD SYS IAW MM 29-13-00-710-002.

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