What was found
NR 4 ENG EXHAUST NOZZLE ASSY FOUND 3 LOCATIONS CRACKED AT FWD FLANGE AREA. NR 4 ENG EXHAUST ASSY 3 LOCATIONS CRACK REPAIR CARRIED OUT AS PER EM CF6-50 REPAIR O2 PROCEDURE B (1) AND EO 4778A148.
- Difficulty date
- February 4, 2010
- Submitted
- June 28, 2010
- Operation
- Air carrier
- Aircraft
- N523MC
- Make and model
- Boeing 7472D7B
- Aircraft serial
- 21782
- Aircraft time
- 100,297 hours, 20,498 cycles
- System (JASC)
- 7810 · Engine Collector/Tailpipe/Nozzle
- Part
- Nozzle
- Condition
- Cracked
- Location
- Nr 4 Engine
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.