# SDR DALA2017081406242

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2017
- Submitted: August 14, 2017
- Operation: Air carrier
- Aircraft: N1608
- Make and model: Boeing 767332
- Aircraft serial: 30573
- Aircraft time: 74,397 hours, 9,821 cycles
- System (JASC): [2133 · Pressure Regulator/Outflow Valve](https://openairdocs.org/jasc/2133)
- Part: Outflow Valve
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CL
- 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/DALA2017081406242

## Discrepancy

PERFORMED AN AIR TURNBACK DUE TO A LHR FOLLOWING LOSS OF BOTH AUTO CABIN PRESS CONTROL SYSTEMS.   REPLACED BOTH AUTO 1 AND AUTO 2 CONTROLLERS AND OUTFLOW VALVES.  SYS CHECKED NORMAL.

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