# SDR SIMA20181216002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2018
- Submitted: December 17, 2018
- Operation: Air carrier
- Aircraft: [N840AE](https://openairdocs.org/aircraft/N840AE), registered now
- Make and model: Emb EMB-135KL
- Registry model: [EMB EMB-135KL](https://openairdocs.org/model/embraer-emb-135kl) (OpenAirDocs)
- Aircraft serial: 145656
- Aircraft time: 30,282 hours, 26,600 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20181216002

## Discrepancy

ODOR OF DECOMPOSING VARMIT IN COCKPIT. FOUND MUFFLER DUCT DISCONNECTED FROM LT RECIRC FAN. SECURED MUFFLER DUCT IAW AMM 21-24-01. RAN BOTH ENGS AT IDLE, MAX POWER, & 75 TLA.   INSPECTED IAW ETN-EM-72-034.  ODOR INTERMITTENT AT HIGH POWER & NON-EXISTENT AT IDLE. COULDN`T DETERMINE LOCATION OR CAUSE OF ODOR.  ODOR ALSO DETECTED AT ENG. SHUTDOWN. PERFORMED GVI OF EICAS DISPLAY, PFD'S, AND MFD'S & SMELLED DISPLAY AREA. COULDN`T LOCATE SOURCE OF ODOR.  PERFORMED GVI OF FWD LOWER E/E BAY.  NO DEFECTS NOTED. COULDN`T LOCATE SOURCE OF ODOR.  PERFORMED NR 1 & 2 ENGINE IDLE RUNS. PERFORMED OPS CHECK IAW ETN-EM-72-034.  OPS CHECKED GOOD.  PERFORMED TROUBLESHOOTING IAW FIM 21-20-00-810-801-A, AMM 25-12-07, & AMM 36-00-00.

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