SDR EIAA20090020

Service difficulty report · Frame · Boeing 747230F

Difficulty date: February 1, 2009
Submitted: February 18, 2009
Operation: Air carrier
Aircraft: N490EV
Make and model: Boeing 747230F
Aircraft serial: 24138
Aircraft time: 84,284 hours, 15,044 cycles
System (JASC): 5311 · Fuselage Main, Frame
Part: Frame
Condition: Cracked
Location: Fuselage
Stage of operation: IN
How discovered: V
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 INCORPORATION OF SB 747-53A2450, 2 CRACKS FOUND ON STA 2231 FRAME I/B FLANGE INNER STRAP AND 1 CRACK FOUND ON FRAME AFT CHORD. AN EXISTING REPAIR WAS FOUND INSTALLED ON STA 2231 FRAME FWD INNER CHORD ALSO. TRIMMED OUT CRACKS AND PERFORMED HFEC INSPECTION, LOCALLY FABRICATED PARTS AND ADD LOCAL FILLERS/SHIMS FROM 7075-T6 PER ECRA 490-51-021-1. INSTALLED FASTENERS AND ASSOCIATED COLLARS PER 747-100/200/300 SRM 51-30.