# SDR SIMA200808118

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 20, 2008
- Submitted: March 24, 2008
- Operation: Air carrier
- Aircraft: [N696AE](https://openairdocs.org/aircraft/N696AE), registered now
- Make and model: Emb EMB-145LR
- Registry model: [EMB EMB-145LR](https://openairdocs.org/model/embraer-emb-145lr) (OpenAirDocs)
- Aircraft serial: 14500874
- Aircraft time: 8,174 hours, 7,260 cycles
- Engine: Allsn AE3007A
- Engine time: 15,656 hours, 14,357 cycles
- System (JASC): [7261 · Turbine Engine Oil System](https://openairdocs.org/jasc/7261)
- Part: Carbon Seal
- Part number: 23071880
- Condition: Faulty
- Location: Nr 1 Engine
- Part time: 15,656 hours, 14,357 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SIMA200808118

## Discrepancy

ON FLIGHT 3799, CREW REPORTED SMOKE IN CABIN AND COCKPIT WHEN POWER WAS APPLIED FOR TAKEOFF.  ABORTED TAKEOFF AND EMERGENCY WAS DECLARED.  AIRCRAFT RETURNED TO GATE UNEVENTFULLY.  AIRCRAFT REMOVED FROM SERVICE.  REMOVED AND REPLACED NR 1 ENGINE ASSEMBLY IAW WORK CARD 71-000-00.  REMOVED AND REPLACED THE NR 4 CARBON SEAL.  UPON DISASSEMBLY THE NR 4 CARBON SEAL WAS NOTED WITH SEVERAL INDICATIONS IN THE CARBON SEALS.  THE OUTER CARBON SEAL HOUSING WAS ALSO NOTED WITH OIL STAINING AND COKING DUE TO OIL LEAKING PAST THE CARBON SEAL SEGMENTS.  OPERATIONAL CHECKS GOOD AT THIS TIME.  AIRCRAFT WAS RETURNED TO SERVICE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.