What was found
DURING SCHEDULED 10Y CHECK, FOUND CENTER WING BOX HORIZONTAL STIFFENER NR 4 CRACKED. REMOVED AND REPLACED STIFFENER PER SRM.
- Difficulty date
- April 18, 2011
- Submitted
- April 19, 2011
- Operation
- Air carrier
- Aircraft
- N406WN
- Make and model
- Boeing 7377H4
- Aircraft serial
- 27894
- Aircraft time
- 36,004 hours, 20,981 cycles
- System (JASC)
- 5714 · Wing, Center Box
- Part
- Stiffener
- Part number
- BAC1506
- Condition
- Cracked
- Location
- Center Wing Box
- 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.