What was found
NHR 3 ENG RH CORE COWL PRECOOLER OUTLET DUCT INNER GILL FOUND CRACKED.(<P>NEW PRECOOLER DUCT REPAIRED AND INSTALLED AS PER ATLAS AIR EA-1971A274 REV 0. NO FURTHER DEFECTS NOTED</P>)
- Difficulty date
- May 23, 2026
- Submitted
- May 27, 2026
- Operation
- Air carrier
- Aircraft
- N477MC
- Make and model
- Boeing 74747UF
- Aircraft serial
- 29255
- Aircraft time
- 108,821 hours, 19,065 cycles
- System (JASC)
- 5410 · Nacelle/Pylon, Main Frame
- Part
- Duct
- Condition
- Cracked
- Location
- Zone 400
- 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.