Service difficulty report · Stiffener · Boeing 74747UF

Difficulty date
March 8, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N476MC
Make and model
Boeing 74747UF
Aircraft serial
29256
Aircraft time
93,201 hours, 17,179 cycles
Part
Stiffener
Part number
65B0182821
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

CORROSION ON LWR FUSELAGE KEEL BEAM STIFFENER AT STA 1000 WL 90 LBL9(<P>1. REMOVE DAMAGE PARTS IAW SRM 51-40-02-OG-0 REV96 2. INSTALL NEW PARTS IAW SRM 51-40-02-0G-0 REV96 AND DWG NO: 65B01828 SH34 REV-A AND DWG NO: 65B01828 SH44 REV-C 3. JOB COMPLETED AND COND CHK NML</P>)

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