Service difficulty report · Frame · Boeing 74747UF

Difficulty date
March 25, 2026
Submitted
March 25, 2026
Operation
Air carrier
Aircraft
N496MC
Make and model
Boeing 74747UF
Aircraft serial
29257
Aircraft time
104,584 hours, 17,583 cycles
Part
Frame
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
E
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

DURING HFEC OPEN HOLE INSPECTION AT NON STRETCHED UPPER DECK TENSION TIE AND FRAMES, STATION 820 LHS FOUND 01 EA HOLE CRACKED AT AROUND 6 O'CLOCK POSITION AS MARKED.(<P>REPAIR CARRIED OUT ON CRACKED TENSION TIE AT STATION 820 IAW B747-400F SRM 53-20-302R REPAIR 1 FIG 201 REV 106. NO FURTHER DEFECTS NOTED.</P>)

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