What was found
NUMBER 1 PYLON INBOARD STRUT SKIN IS FOUND CRACKED AT 452ER PANEL, CUTOUT LENGTH 1.2". NR 1 PYLON INBOARD STRUT SKIN CRACK AT 452ER PANEL CUTOUT AREA, REPAIRED IAW RI-54-50-17774 REV A. NO FURTHER DEFECTS NOTED.
- Difficulty date
- July 14, 2025
- Submitted
- July 17, 2025
- Operation
- Air carrier
- Aircraft
- N489MC
- Make and model
- Boeing 747412F
- Aircraft serial
- 26553
- Aircraft time
- 118,648 hours, 20,715 cycles
- System (JASC)
- 5410 · Nacelle/Pylon, Main Frame
- Part
- Strut
- 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.