What was found
Q4 CHECK - LEVEL 2 FRETTING CORROSION ON STIFFENER AT BS1126, WL230, RBL15 AT AFT EDGE OF APU INLET CUTOUT IN TORQUE BOX. REPLACED STIFFENER AT BS1126, WL230, RBL15 IAW SRM 51-10-02 & DWG 69-68939.
- Difficulty date
- June 6, 2013
- Submitted
- July 11, 2013
- Operation
- Air carrier
- Aircraft
- N444US
- Make and model
- Boeing 7374B7
- Aircraft serial
- 24862
- Aircraft time
- 60,268 hours, 41,089 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Stiffener
- Part number
- 6546579531
- Condition
- Corroded
- Location
- Corrosion On Str
- 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.