What was found
INSPECTION TYPE:C NWW TOP PANEL LBL20 INTERCOSTAL FOUND CRACK AT 1 FASTENER LOCATION AT BS290 AS MARKED, CRACK LENGTH 1/2". NWW TOP PANEL AT BS 290 LBL20 INTERCOSTAL REPLACED AS PER SRM 51-10-01 PG 9 AND INSTALLED AS PER SRM 51-30-02.
- Difficulty date
- July 6, 2007
- Submitted
- July 27, 2007
- Operation
- Air carrier
- Aircraft
- N522UP
- Make and model
- Boeing 747212B
- Aircraft serial
- 21936
- Aircraft time
- 74,820 hours, 17,560 cycles
- System (JASC)
- 5320 · Fuselage Miscellaneous Structure
- Part
- Intercostal
- Part number
- 65B079413
- Condition
- Cracked
- Location
- Bs 290
- 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.