# SDR CHQA200900208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 24, 2009
- Submitted: September 25, 2009
- Operation: Air carrier
- Aircraft: N287SK
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 145460
- Aircraft time: 21,074 hours, 17,192 cycles
- Engine: Allsn AE3007A
- Engine time: 12,687 hours, 10,102 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: O-Ring
- Part number: 40303920SD
- Condition: Damaged
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CHQA200900208

## Discrepancy

FLIGHT 5516, ATL TO CLE.  AIRCRAFT RETURNED TO FIELD DUE TO A BLEED 1 LEAK MESSAGE ON EICAS AND LANDED WITHOUT INCIDENT.  MAINTENANCE FOUND A DAMAGED O-RING IN THE BLEED SYSTEM 1 DUCTING AT JOINT 19 BEHIND THE CARGO COMPARTMENT WALL.  THE O-RINGS IN THE AFFECTED JOINT WERE REPLACED AND THERE WERE NO FURTHER LEAK MESSAGES.

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