What was found
CORROSION FOUND ON THE UPPER CHORD OF THE MAIN DECK FLOOR STRUCTURE BETWEEN BS 1320 AND 1340, LBL 75.92. REPAIRED THE FLOOR SUPPORT IAW EO B747-5310-70012-A.
- Difficulty date
- August 7, 2018
- Submitted
- September 24, 2018
- Operation
- Air carrier
- Aircraft
- N583UP
- Make and model
- Boeing 7474R7F
- Aircraft serial
- 25867
- Aircraft time
- 116,253 hours, 19,596 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Floor Support
- Part number
- 144U80043
- Condition
- Corroded
- Location
- Bs 1320-1340
- 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.