What was found
DURING AN ENGINE CHANGE AT AN A-CHECK, MX FOUND 3 EA CRACKS ON THE NR 4 ENGINE FIXED COWL EXHAUST NOZZLE FOWARD FLANGE CORE COWL SUPPORT ASSY (REF FIGURE 1). REPAIRED IAW EO 4778A148.
- Difficulty date
- August 4, 2011
- Submitted
- August 6, 2011
- Operation
- Air carrier
- Aircraft
- N524MC
- Make and model
- Boeing 7472D7B
- Aircraft serial
- 21784
- Aircraft time
- 105,635 hours, 21,872 cycles
- Engine
- Ge CF650*
- System (JASC)
- 7810 · Engine Collector/Tailpipe/Nozzle
- Part
- Nozzle
- Condition
- Cracked
- Location
- Exhaust
- 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.