# SDR USAA20101217BB091

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2010
- Submitted: December 17, 2010
- Operation: Air carrier
- Aircraft: N205UW
- Make and model: Boeing 757-23N
- Registry model: [Boeing 757-23N](https://openairdocs.org/model/boeing-757-23n) (OpenAirDocs)
- Aircraft serial: 30887
- System (JASC): [2134 · Cabin Pressure Sensor](https://openairdocs.org/jasc/2134)
- Part: Warning Switch
- Part number: 214C40171
- Condition: Malfunctioned
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA20101217BB091

## Discrepancy

FLL  FLT 921  EN-ROUTE AUA TO PHL.  DURING CRUISE, THE COCKPIT CREW OBSERVED A CABIN ALTITUDE WARNING.  THE FLIGHT DESCENDED DOWN TO 10,000 FEET AND DIVERTED TO FLL.  THE FLIGHT LANDED WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED A CABIN ALTITUDE WARNING SWITCH.

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