What was found
U/D STA 680 - 700 STR 12R - STR 13R, FLOOR WEB ATTACHED STIFFENER FOUND HEAVY CORROSION.(<P>U/D STA 685 RBL 80 - RBL 95 WL 307.5 STIFFENER P/N : 65B06144-882 REPLACED AND INSTALLED IAW SRM 51-10-02 AND SRM 51-40-02.</P>)
- Difficulty date
- April 29, 2022
- Submitted
- May 3, 2022
- Operation
- Air carrier
- Aircraft
- N473MC
- Make and model
- Boeing 747
- Aircraft serial
- 27174
- Aircraft time
- 111,020 hours, 19,942 cycles
- System (JASC)
- 5300 · Fuselage Structure (General)
- Part
- None
- Part number
- 65B06144882
- Part serial
- NSN
- Condition
- None
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.