SDR AU981533

Service difficulty report · Frame · Boeing 747312

Difficulty date: September 11, 1998
Submitted: March 26, 2000
Operation: General aviation
Make and model: Boeing 747312
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Bs 2598
Stage of operation: IN
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

(AUS) LEFT SIDE INNER CHORD LOCATED AT BULKHEAD STA 2598 CONTAINED TWO CRACKS IN THE FOLLOWING LOCATIONS: 1. CRACK RUNNING FROM EDGE OF FASTENER - CRACK LENGTH 6.35 MM (0.25 INCH). 2. CRACK RUNNING FROM THE EDGE THROUGH THE INBOARD FASTENER HOLE AND STOPPING AT THE EDGE OF THE RADIUS - CRACK LENGTH 46.482 MM (1.83 INCH) FOUND DURING INSPECTION IAW ER B747-53-10-25 (BSB53A2423).