What was found
INSPECTION TYPE:C1, DISCOLORATION AND CORROSION ON THE INBD LWR PANEL (P/N:323U8740-1) OF THE NR 4 PYLON. REPAIR IAW SRID 3-4768900785, AND EO B747-5450-77180-A.
- Difficulty date
- July 7, 2020
- Submitted
- July 13, 2020
- Operation
- Air carrier
- Aircraft
- N611UP
- Make and model
- Boeing 7478F
- Aircraft serial
- 64257
- Aircraft time
- 8,218 hours, 1,153 cycles
- System (JASC)
- 5410 · Nacelle/Pylon, Main Frame
- Part
- Panel
- Part number
- 323U87401
- Condition
- Discolored
- Location
- Nr 4 Nacelle
- Stage of operation
- IN
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.