What was found
FOUND CRACK VERTICAL STIFFENER, MLG WW, STA 663.15, LBL 6.15. REMOVED DAMAGE, INSTALLED CHANNEL, ANGLE AND STRAP REPAIR PARTS PER TR 57-10-03B DEFECT SIZE: 1.0".
- Difficulty date
- April 18, 2007
- Submitted
- April 18, 2007
- Operation
- Air carrier
- Aircraft
- N421US
- Make and model
- Boeing 737401
- Aircraft serial
- 23988
- Aircraft time
- 49,912 hours, 49,912 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Stiffener
- Condition
- Cracked
- Location
- Bs 663
- 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.