What was found
NWW TOP PANEL BS280-300 RBL 10 STIFFENER RADIUS AREA FOUND CRACK APP 3/4". NWW TOP PANEL BS280-300 RBL10 STIFFENER REPLACED AS PER SRM 51-10-01 PG9 AND INSTALLED AS PER SRM 51-30-02.
- Difficulty date
- May 5, 2006
- Submitted
- May 22, 2006
- Operation
- Air carrier
- Aircraft
- N521UP
- Make and model
- Boeing 747211B
- Aircraft serial
- 21944
- Aircraft time
- 77,205 hours, 18,330 cycles
- System (JASC)
- 5310 · Fuselage Main, Structure
- Part
- Stiffener
- Part number
- 65B0794114
- Condition
- Cracked
- Location
- Bs 280-300
- 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.