# SDR CALA2013122693951

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 24, 2013
- Submitted: December 27, 2013
- Operation: Air carrier
- Aircraft: [N463UA](https://openairdocs.org/aircraft/N463UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1282
- Aircraft time: 46,996 hours, 18,206 cycles
- Engine: Iae V2527A5
- System (JASC): [7920 · Engine Oil Distribution (Airframe Furnished)](https://openairdocs.org/jasc/7920)
- Part: Modulating Valve
- Part number: TY155852
- Condition: Faulty
- Location: Oil System
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2013122693951

## Discrepancy

AIR EXCHANGER FAULT DISPLAYED ON UPPER ECAM SCREEN, AIR VLV CLOSED ENG 2.  IAW TOMC SHUTDOWN ENGINE, RESET A05, Q40, Q07 & F01, NO HELP.  REPLACED ACOC MODULATING VLV IAW AMM79-21-51401.  TESTED SYS IAW AMM79-21-51-400-010-A PARA 5AB, ALL OPERATIONS & LEAK CHECKED NORMAL.  REMOVED ACOC MODULATING VLV MR 79218 DID NOT HAVE A DASH, ONLY SN1384.

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