# SDR SIMA20190114001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 14, 2019
- Submitted: January 15, 2019
- Operation: Air carrier
- Aircraft: [N259NN](https://openairdocs.org/aircraft/N259NN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000682
- Aircraft time: 3,799 hours, 2,539 cycles
- System (JASC): [3830 · Waste Disposal System](https://openairdocs.org/jasc/3830)
- Part: Drain Mast
- Condition: Defective
- Location: Waste Water
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20190114001

## Discrepancy

CABIN PRESSURIZATION STARTED TO CLIMB @ 1000 FPM AT FL 310-C/A-FOUND NO PRESSURIZATION FAULTS ON CMC.  PERFORMED CABIN PRESSURIZATION LEAKAGE FUNCTIONAL TEST IAW AMM 21-31-00-720-802, OPC GOOD NO LEAKAGE FOUND AT 2L DOOR. ITEM DEFERRED PER MEL. GOT ACCESS TO FORWARD AUTO DRAIN VALVE IN RT FWD GALLEY IAW AMM 25-23-10 & 38-31-04 AND REMOVED TRASH FROM DRAIN VALVE ASSY, NO MORE LEAKS NOTED. REMOVED AND REPLACED  FWD DRAIN MASK IAW AMM 38-31-03, OPC GOOD

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