# SDR AALA2019121099009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 7, 2019
- Submitted: December 10, 2019
- Operation: Air carrier
- Aircraft: [N753US](https://openairdocs.org/aircraft/N753US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1326
- Aircraft time: 46,021 hours, 32,718 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: O-Ring
- Condition: Leaking
- Location: Hyd System
- Stage of operation: AP
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA2019121099009

## Discrepancy

AIRCRAFT WAS GROUNDED: FIVE MINUTES PRIOR TO LANDING DIRTY SOCK SMELL (ODOR) LIGHT THROUGH CABIN. F/A REPORTED COMMUTING F/A IN ROW 13 REPORTED TO #1 F/A ELECTRICAL ODOR IN CABIN. MAINTENANCE FOUND APU PLENUM WET WITH SKYDROL. YELLOW HYDRAULIC HP-MANIFOLD LINE LEAKING. REMOVED AND REPLACED YELLOW HYDRAULIC HP MANIFOLD LINE UNION O-RING. OPS AND LEAK CHECK GOOD. STEAM CLEANED APU COMPARTMENT AS REQUIRED.

---
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.