# SDR SWAA2018052122119

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2018
- Submitted: May 21, 2018
- Operation: Air carrier
- Aircraft: N732SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27864
- Aircraft time: 66,969 hours, 39,095 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Line
- Part number: SA417A2042001
- Condition: Leaking
- Location: Ac Bay
- Stage of operation: UK
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018052122119

## Discrepancy

DIVERSION/DECLARED EMERGENCY, AUTO FAIL LIGHT ON PRESS CONTROLLER, SWITCHED TO ALT AND AGAIN AUTOFAIL, SWITCHED TO MAN AND CONTROLLED FOR ABOUT 5 MIN AND THEN CABIN ALT STARTED CLIMBING.  FOUND WATER FILTER SUPPLY LINER LEAKING ABOVE OUTFLOW VALVE.  R&R LINE IAW MM.

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