# SDR ASOA20140822095

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 22, 2014
- Submitted: August 22, 2014
- Operation: Air carrier
- Aircraft: [N26549](https://openairdocs.org/aircraft/N26549), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145571
- Aircraft time: 29,329 hours, 22,723 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Valve
- Part number: 22250N03031
- Part serial: 375
- Condition: Stuck
- Location: Cabin Pressure
- Stage of operation: DE
- How discovered: O
- Nature of condition: S
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASOA20140822095

## Discrepancy

ACFT WAS BEING VECTORED WHEN THE PRESSURIZATION BECAME ERRATIC, COULDN'T GET IT UNDER CONTROL MANUALLY AND FINALLY PRESSURIZATION DEPRESSURIZED AT 5000 FEET. ACFT LANDED AND MAINTENANCE, R THE ELECTROMAGNETIC OUTFLOW VALVE IAW AMM 21-31-03; IPC 21-30-00, FIGURE 30, ITEM 160. R & R THE PNEUMATIC OUTFLOW VALVE IAW AMM 21-31-04;IPC 21-31-00, FIG 30 ITEM 1. ALSO. REPLACED THE DIGITAL CONTROLLER IAW AMM 21-31-01, FIG 04 ITEM 10.OPS CHECK GOOD AND WAS RELEASED.  PN OF DIGITAL CONTROLLER 2099L02110, SN 01668.  PNEUMMATIC OUTFLOW VALVE, PN 2097K011100 AND SN 01522.

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