# SDR USAA2014100100005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 30, 2014
- Submitted: October 1, 2014
- Operation: Air carrier
- Aircraft: [N167US](https://openairdocs.org/aircraft/N167US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1442
- Aircraft time: 46,104 hours, 16,925 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Ptu
- Part number: 971600
- Part serial: MX632593
- Condition: Unserviceable
- Location: Hydraulic Sys
- Part time: 46,952 hours, 17,374 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014100100005

## Discrepancy

HYDRAULIC SYS YELLOW OVERHEAT EN ROUTE.  DECLARED AN EMER INBD TO INSURE PRIORITY HANDLING.  FLIGHT LANDED WITHOUT INCIDENT.  TROUBLE SHOT IAW TSM 29-13-00-810-802-A & TSM 29-23-00-810-801-A.  R & R PTU.  R & R RELAY 3816G, 6MJ2, 3811GX & SYS PRESS SWITCH 3151GN & 1151GN.  REPLACED LOW PRESS FILTER.  SYS OPERATIONS CHECKED NORMAL IAW AMM 29-23-41-400-001-A.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.