What was found
FOUND CRACK, LOWER CHORD OF LT WBL 135.5 INSPAR RIB. REMOVED DAMAGED AREA AND INSTALLED REPAIR PARTS PER EA 98574, DEFECT SIZE: .05".
- Difficulty date
- April 25, 2007
- Submitted
- April 25, 2007
- Operation
- Air carrier
- Aircraft
- N421US
- Make and model
- Boeing 737401
- Aircraft serial
- 23988
- Aircraft time
- 49,912 hours, 49,912 cycles
- System (JASC)
- 5712 · Wing, Rib/Bulkhead
- Part
- Rib
- Condition
- Cracked
- Location
- Lt Wing
- 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.