# SDR DXTA2018032400758

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 23, 2018
- Submitted: March 24, 2018
- Operation: Air carrier
- Aircraft: [N395QS](https://openairdocs.org/aircraft/N395QS), registered now
- Make and model: Emb EMB-505
- Registry model: [EMB EMB-505](https://openairdocs.org/model/embraer-executive-emb-505) (OpenAirDocs)
- Aircraft serial: 50500365
- Aircraft time: 1,286 hours, 983 cycles
- System (JASC): [7520 · Engine Cooling System](https://openairdocs.org/jasc/7520)
- Part: Precooler
- Condition: Failed
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DXTA2018032400758

## Discrepancy

BLEED 1 FAIL YELLOW CAS ILLUMINATED, CLIMBING THROUGH APPROXIMATELY 16,000 FT IN ICING CONDITIONS WITH WING AND ENGINE ANTI-ICE SWITCHES SELECTED ON.  AFFECTED BLEED FAIL CONDITION DID NOT INITIALLY RESET.  BLEED 2  FAIL YELLOW CAS MESSAGE ILLUMINATED CLIMBING THROUGH APPROXIMATELY 16,000 FEET.   COMPLIED WITH SERVICE LETTER SL 505-36-0003 AND FOUND THE PRECOOLER INTERNAL VANES BROKEN OFF AND BLOCKING AIR FLOW.  R & R THE PRECOOLER WITH OVERHAULED UNIT AND OPS CHECKED GOOD IAW AMM 36-11-05-000-801-A/400, 36-11-05-400-801-A/400, 36-00-00-710-801-A/500.

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