SDR DALA1229666306

Service difficulty report · Floor Support · Boeing 747451

Difficulty date: May 4, 2012
Submitted: May 8, 2012
Operation: Air carrier
Aircraft: N666US
Make and model: Boeing 747451
Aircraft serial: 23821
Aircraft time: 95,648 hours, 11,953 cycles
System (JASC): 5320 · Fuselage Miscellaneous Structure
Part: Floor Support
Condition: Cracked
Location: Bs 500-520
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING INSPECTION FOUND CRACK AT THE FLOOR SUPPORT WEB UPPER CHORD AT STA 500 TO STATION 520, RBL7.0 AREA REMOVED AS PER SRM 51-40-02. NEW UPPER CHORD ANGLE FABRICATED AS PER DWG 69B1965. INSTALLED NEW UPPER CHORD ANGLE AT CABIN STA 500 TO STA 520 RBL 7.0 AREA PER SRM 51-40-02.