# SDR AUS20011177

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2001
- Submitted: December 4, 2001
- Operation: Air carrier
- Make and model: Boeing 747-400
- Registry model: [Boeing 747-400](https://openairdocs.org/model/boeing-747-400) (OpenAirDocs)
- System (JASC): [2131 · Cabin Pressure Controller](https://openairdocs.org/jasc/2131)
- Part: Controller
- Condition: Failed
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AUS20011177

## Discrepancy

(AUS) CABIN PRESSURISATION SYSTEM FAILED. AIRCRAFT MADE AND EMERGENCY DESCENT AND OVERWEIGHT LANDING. AIRCRAFT IS SINGAPORE REGISTERED.

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