# SDR ASAA2016021415413

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2016
- Submitted: February 17, 2016
- Operation: Air carrier
- Aircraft: [N531AS](https://openairdocs.org/aircraft/N531AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35199
- Aircraft time: 22,481 hours, 6,747 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Control Panel
- Part number: 8243921002
- Part serial: 00061210
- Condition: Failed
- Location: Cabin Pressure
- Part time: 53,520 hours, 19,203 cycles
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2016021415413

## Discrepancy

LANDING ALTITUDE READOUT ON PRESSURIZATION CONTROL PANEL VERY DIM.  WHEN LIGHTS TEST SWITCH IN DIM MODE. OPS NORMAL IN BRIGHT MODE.  ACFT GROUNDED.  R & R CABIN PRESS CONTROL MODULE REFAMM 21-31-02, 400/801.  OPS & GROUND VERIFICATION TEST PASSED.

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