# SDR AALA201603289004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 25, 2016
- Submitted: March 28, 2016
- Operation: Air carrier
- Aircraft: [N957UW](https://openairdocs.org/aircraft/N957UW), registered now
- 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: 19000161
- Aircraft time: 17,866 hours, 14,903 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Duct
- Condition: Leaking
- Location: Zone 400
- 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/AALA201603289004

## Discrepancy

AIRCRAFT WAS GNDED.  AFTER DEPARTURE WHILE CLIMBING, THE NR 1 BLEED SYS FAILED, RESULTING IN A PRESSURIZATION ISSUE AS THE NR 2 BLEED AIR SYS WAS ALREADY ON MEL.  DECLARED AN EMER & RETURNED WHERE THE ACFT LANDED SAFELY WITH NO FURTHER INCIDENT.  FOUND A BLEED AIR LEAK COMING FROM THE STARTER DUCT IN THE NR 1 PYLON FWD SECTION & REPLACED THE STARTER DUCT IAW AMM 36-11-4 400.  NO FAULTS WERE NOTED DURING AN OPERATIONAL CHECK OF THE SYS.

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