# SDR USAA2014091200001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 8, 2014
- Submitted: September 12, 2014
- Operation: Air carrier
- Aircraft: [N155UW](https://openairdocs.org/aircraft/N155UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 5659
- Aircraft time: 4,165 hours, 1,786 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Seal
- Condition: Leaking
- Location: R4 Assist Bottle
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2014091200001

## Discrepancy

EXCESSIVE R4 DOOR ASSIST BOTTLE SERVICING, TECHNICAL SERVICE ITEM.  PERFORMED LEAK CHECK OF R4 EMER OPERATION CYLINDER IAW AMM 52-10-00-790-001A & FOUND FILLING VLV LEAKING AT BASE.  R & R FILLING VLV SEAL & CLEANED DEBRIS FROM VLV BASE AREA.  RECHARGED CYLINDER IAW AMM 52-10-00-614-001A.  LEAK CHECKED AFTER SEVERAL HOURS GOOD.

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