# SDR ASAA2017032920293

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 29, 2017
- Submitted: April 3, 2017
- Operation: Air carrier
- Aircraft: [N559AS](https://openairdocs.org/aircraft/N559AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35178
- Aircraft time: 39,004 hours, 11,567 cycles
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Part number: 71211997101AC
- Part serial: 0111931
- Condition: Failed
- Location: Cabin Pressure
- Part time: 57,029 hours, 20,096 cycles
- Stage of operation: TX
- 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/ASAA2017032920293

## Discrepancy

PRESSURIZATION AUTO FAIL LIGHT ILLUMINATED AFTER LANDING.  ACFT GROUNDED.  ACCOMPLISHED GVI NR 2 CABIN PRESSURE CONTROLLER (CPC),  FOUND COPPER TAPE SEAL AT THE EDGES & FRONT OF THE CPC TORN & NUMEROUS HOLES. REMOVED & REPLACED THE NR 2 CPC IAW AMM 21-31-01.  A GROUND FUNCTIONAL CHECK WAS NORMAL IAW FIM 21-31, TASK 801 DCPC BITE PROCEDURE,  AND PRESSURIZATION SYSTEM GROUND TEST IAW AMM 21-31-00-700-802.

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