Service difficulty report · None · Boeing 747

Difficulty date
April 29, 2022
Submitted
May 3, 2022
Operation
Air carrier
Aircraft
N473MC
Make and model
Boeing 747
Aircraft serial
27174
Aircraft time
111,020 hours, 19,942 cycles
Part
None
Part number
69B10098148
Part serial
NSN
Condition
None
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
O

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

What was found

FX - KEEL BEAM PANEL SUPPORT CORROSION CRACK FOUND AT STA 1000 LBL 10" TO RBL 10"(<P>FX - STA 1000 LBL 127" TO RBL 127" KEEL BEAM PANEL ATT SUPPORT CHORD P/N : 69B10098-148 REPLACED AND INSTALLED IAW SRM 51-10-02 AND SRM 51-40-02.</P>)