# SDR ASAA2017113022741

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 30, 2017
- Submitted: December 4, 2017
- Operation: Air carrier
- Aircraft: [N557AS](https://openairdocs.org/aircraft/N557AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35176
- Aircraft time: 44,015 hours, 12,993 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Light
- Condition: Malfunctioned
- Location: Control Panel
- Part time: 10,070 hours, 3,245 cycles
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017113022741

## Discrepancy

PRESSURIZATION PANEL LIGHTS WILL NOT DIM. GROUNDED - YES. UPON CYCLING ACFT POWER, PRESSURIZATION CONTROL PANEL LIGHTING OPERATES NORMAL. BRIGHT, DIM & MASTER DIM AND TEST ALL NORMAL. AS PRECAUTIONARY, REMOVED AND REPLACED CABIN PRESSURE CONTROL PANEL PER B737-800 AMM 21-31-02. OPS CK'S NORMAL.

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