# SDR GTIA2019062903444

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 29, 2019
- Submitted: July 1, 2019
- Operation: Air carrier
- Aircraft: [N685NK](https://openairdocs.org/aircraft/N685NK), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 8115
- Aircraft time: 4,879 hours, 5,793 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Unknown
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: UK
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA2019062903444

## Discrepancy

VENT AVNCS SYS FAULT AFTER TAKEOFF. OUTLET VALVE HAD AMBER X'S. LOUD SQUEAL HEARD. COULD NOT PRESSURIZE. RETURNED TO KIAH. BURNED FUEL TO LAND UNDER MGLW. TOUCHDOWN @ 170,900LBS ( SKIN AIR OUTLET VALVE ) PERFORMED OPS CK OF AEVC IAW AMM 21-26-00. FAULT CLEARED. OPS CK GOOD. THIS CLOSES DMI# 245229701. MOC NOTIFIED PLACARD REMOVED. LOG UPDATED

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