# SDR JIKA2013090301

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 3, 2013
- Submitted: September 5, 2013
- Operation: Air carrier
- Aircraft: [N266AS](https://openairdocs.org/aircraft/N266AS), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120188
- Aircraft time: 39,280 hours, 41,069 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Duct
- Condition: Leaking
- Location: Bleed Air
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/JIKA2013090301

## Discrepancy

PILOT REPORTED DURING CLIMBOUT, LT "DUCT LEAK" LIGHT ILLUMINATED.  LT BLEED AIR WAS SHUTOFF. AFTER 3 MINUTES LIGHT NEVER EXTINGUISHED.  LT ENGINE WAS SHUTDOWN, DECLARED AN EMERGENCY, RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT.  FOUND THE SEAL FOR OVERBOARD EXHAUST RECEIVER ON THE LT DE-ICE PRESSURE REGULATOR BLOWN OUT ALLOWING THE HOT EXHAUST AIR INTO THE L/E FAIRING CAUSING THE LT DUCT LIGHT TO ILLUMINATE.  PRESSURIZED LT DE-ICING SYS FOUND THAT THE PRESSURE REGULATOR, PN 38E96-5A WAS ALLOWING TOO MUCH EXHAUST AIR INTO THE RECEIVER CAUSING THE SEAL TO BLOW OUT.  R & R THE LT DE-ICE PRESSURE REGULATOR.  GROUND RUN LEFT ENGINE OPS CHECKED NORMAL.

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