# SDR YENA2022010400005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 26, 2021
- Submitted: January 4, 2022
- Operation: Air carrier
- Aircraft: N351JB
- 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: 549
- Aircraft time: 24,730 hours, 16,737 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Heat Exchanger
- Condition: Leaking
- Location: Bleed 1
- Stage of operation: CL
- How discovered: V
- Nature of condition: K
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YENA2022010400005

## Discrepancy

FLT 468, FLL-ATL (AIR TURN BACK TO FLL). BLEED 1 LEAK ON EICAS AFTER TAKEOFF AT ABOUT 13K FT ; ACCOMPLISHED FIM TASK 36-21-00-810-813-A FOUND DC4 GREASE (INCREASES CAPACITANCE CHANGES IMPEDANCE) ON LOOP3  L/H PACK CERAMIC PINS CHA & B . CLEANED & REPLACED CERAMIC PINS LOOP3 & FOUND SMALL LEAK AT HEAT EXCHANGER COUPLING REPLACED O-RINGS LEAK CK GOOD. OPS CK LOOPS 3 CHA &B & ENG IDLE RUN GOOD ALL LOOPS CONTINUITY CK GOOD 7.3 OHMS NO SHORTS.

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