Service difficulty report · Floorbeam · Boeing 747212B

Difficulty date
July 10, 2007
Submitted
July 27, 2007
Operation
Air carrier
Aircraft
N522UP
Make and model
Boeing 747212B
Aircraft serial
21936
Aircraft time
74,820 hours, 17,560 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 1920
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

INSPECTION TYPE:C AFT CARGO COMPT CARGO FLOORBEAM UPPER TEE FOUND CORROSION AT STA 1920 CARGO NET ATT HOOK RBL4 TO LBL4. CORROSION BLEND OUT 0.045" BY 1.5" BY 2". AFT CARGO COMPT BS 1920 LBL 42 TO RBL 42 FLOORBEAM UPPER CHORD REPLACED AND INSTALLED AS PER SRM 51-10-01 PG 9 AND 51-30-02.

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