# SDR AALA2019030419001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2019
- Submitted: March 4, 2019
- Operation: Air carrier
- Aircraft: [N988NN](https://openairdocs.org/aircraft/N988NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31237
- Aircraft time: 9,730 hours, 3,912 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Unknown
- Condition: Unknown
- Location: Cabin Pressure
- Stage of operation: NR
- 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/AALA2019030419001

## Discrepancy

CABIN PRESSURIZATION WAS FLUCTUATING, WENT TO ZERO ON FINAL UNDER 500 FT ALTITUDE.  MAINTENANCE ACCOMPLISHED BITE CHECK OF DCPC NR 1 AND 2.  NO FAULTS NOTED IAW FIM 21-31-00.

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