# SDR USAA2011072600005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2011
- Submitted: July 26, 2011
- Operation: Air carrier
- Aircraft: N946UW
- Make and model: Emb ERJ 190-100 IGW
- Registry model: [EMB ERJ 190-100 IGW](https://openairdocs.org/model/embraer-erj-190-100-igw) (OpenAirDocs)
- Aircraft serial: 19000072
- Aircraft time: 9,720 hours, 8,024 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Disconnected
- Location: Ac Bay
- Stage of operation: DE
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2011072600005

## Discrepancy

FLIGHT 1829, DFW-PHL - DESCENDING TO 30,000FT LOUD BANG REPORTED.  CABIN ALTITUTE STARTED CLIMBING BUT CABIN ALTITUDE LEVEL AT 9000FT.  SOUNDED AS A DUCT LEAK OR DUCT DISCONNECTED.   THE CREW DECLARED AND EMERGENCY AND LANDED UNEVENTFULLY.  MAINTENANCE FOUND BOOT ON ACM DUCT DISCONNECTED.  REINSTALLED AS REQUIRED AND PERFORMED LEAK CHECK PER AMM 21-30-00.  OPERATIONAL CHECK IS SATISFACTORY.

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