Service difficulty report · None · Boeing 747

Difficulty date
April 30, 2022
Submitted
May 4, 2022
Operation
Air carrier
Aircraft
N477MC
Make and model
Boeing 747
Aircraft serial
29255
Aircraft time
94,642 hours, 16,669 cycles
Part
None
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- LOWER FRAMES. AFT CGO DOOR LOWER LOBE STRUCTURE BETWEEN STA 1810/ STA 1920(<P>1) BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 94 2) PFM NDT INSP REFER TO JOB CARD ATTACHING SHEET NO 0225742 3) MEASURED REWORK AREA DEPTH = 0-01'', LENGTH = 1.2'' WIDTH = 1'' IT WAS ALLOWABLE IAW SRM 52-30-02 IA-1 REV 94 DETAIL XIZ FIGURE 101 4) APPLY PROTECTIVE COATING AT REWORK AREA IAW SRM 51-20-01 REV 94 5) CONDITION CHECK NORMAL AND JOB COMPLETED.</P>)