Service difficulty report · Structure · Boeing 747200

Difficulty date
May 9, 2003
Submitted
June 4, 2003
Operation
Air carrier
Aircraft
N521UP
Make and model
Boeing 747200
Aircraft serial
21944
Aircraft time
70,081 hours, 16,930 cycles
Part
Structure
Condition
Corroded
Location
Keelbeam
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, FX - KEEL BEAM BOX INTERIOR LOWER STRUCTURE FOUND HEAVY CORROSION AT STA 1450 TO STA 1465 LBL 6 TO LBL 8. CORROSION BLEND OUT 0.149 X .75 X 1.5 INCH. REPAIRED CARRIED OUT AS PER HX RS R53-49-35025 UPS ENG'R FILE 747- 53-20139.

More about the Boeing 747-200