Service difficulty report · Keelbeam · Boeing 74747UF

Difficulty date
July 31, 2020
Submitted
August 4, 2020
Operation
Air carrier
Aircraft
N498MC
Make and model
Boeing 74747UF
Aircraft serial
29259
Aircraft time
86,454 hours, 13,625 cycles
Part
Keelbeam
Condition
Corroded
Location
Bs 1020
Stage of operation
IN
How discovered
9
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

BS 1020, RBL 9, KEELBEAM LOWER FLANGE FOUND CORRODED. THE CORROSION WAS REMOVED AND THE KEELBEAM WAS REPROTECTED IAW SRM 51-10-02 AND SRM 51-20-01. CHECKED WITHIN SRM LIMITS.

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