# SDR SIMA20261102001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 2, 2026
- Submitted: November 4, 2026
- Operation: Air carrier
- Aircraft: [N284JN](https://openairdocs.org/aircraft/N284JN), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000822
- Aircraft time: 18,769 hours, 12,633 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA20261102001

## Discrepancy

ON TAKEOFF ROLL AT APPROXIMATELY 120KTS STRONG SMELL OF DIRTY SOCKS / BURNING OIL PRESENT IN FLIGHT DECK SMELL CONTINUED UNTIL APPROXIMATELY 5000 FT AT WHICH POINT IT DISAPPEARED.  EMERGENCY DECLARED. RESULTS OF BORESCOPE  REQUIRE LT ENGINE CHANGE.   INSPECTION OF COCKPIT FLASHLIGHTS WITH NO BURNING ODOR NOTED, INSPECTION OF RELAY K0016 AND BASE XK0016 WITH NO DEFECTS NOTED,  INSPECTION OF LT & RT ACM ROTORS,  PERFORMING FIM TASK 21-20-00-810-801-A BLOCK DIAGRAMS 4 AND 5 PAGES 11, 12, AND 13 WITH NO DEFECTED , INSPECTED LT AND RT HEAT EXCHANGERS AND FOUND THEM TO BE DIRTY AND SEE NRWC  084-DFW-04238 FOR HEAT EXCHANGER CLEANING, & PERFORMED ENGINE POWER RUNS WITH PACKS RUNNING FROM ENGINE BLEEDS WITH NO FURTHER ODORS NOTED IAW LMM 72-00-00.

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