# SDR KCSA11021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2011
- Submitted: April 18, 2011
- Operation: Air carrier
- Aircraft: [N740CK](https://openairdocs.org/aircraft/N740CK), registered now
- Make and model: Boeing 747-4H6F
- Registry model: [Boeing 747-4H6F](https://openairdocs.org/model/boeing-747-4h6f) (OpenAirDocs)
- Aircraft serial: 24405
- Aircraft time: 58,704 hours, 10,619 cycles
- Engine: Ge CF680C2B1F
- Engine time: 42,898 hours, 7,712 cycles
- System (JASC): [7200 · Engine (Turbine/Turboprop)](https://openairdocs.org/jasc/7200)
- Part: Engine
- Part number: CF680C2B1F
- Part serial: 702595
- Condition: Leaking
- Location: Nr 4
- Part time: 42,898 hours, 7,712 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/KCSA11021

## Discrepancy

SMOKE IN FLT DECK & CABIN DURING CRUISE.  DECLARED EMERGENCY AND DIVERTED TO EDDF.  PERFORMED FIM TASK 21-00 TASK 810 & 71-03 TASK 854.  FOUND OIL (ENG) IN TAIL PIPE.  REMOVED & REPLACED THE NR 4 ENG IAW B747-400 MM 71-00-02, PERFORMED ENG TEST NR 7 IAW B747-400 MM 71-00-00 OPS LEAK CHECKS GOOD.

---
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.