Service difficulty report · Spar · Boeing 747409F

Difficulty date
August 19, 2025
Submitted
August 19, 2025
Operation
Air carrier
Aircraft
N438GT
Make and model
Boeing 747409F
Aircraft serial
30766
Aircraft time
92,759 hours, 17,063 cycles
System (JASC)
5711 · Wing Spar
Part
Spar
Condition
Cracked
Location
Zone 600
Stage of operation
IN
How discovered
V
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

RHW I/B T/E REAR SPAR UPPER CHORD AT WS 540 AREA FOUND CRACKED(<P>CRACKED AT RHW I/B T/E REAR SPAR UPPER CHORD AT WS 540 AREA REPAIRED AS PER EN #3398-25 REV 0 REPAIR CATEGORIZED AS €ŒCATEGORY A€? PERMANENT REPAIR AND REPAIR CLASSIFIED AS €ŒMAJOR REPAIR€? AS PER EN #3398-25 REV 0. NO FURTHER DEFECTS NOTED. PN 65B11614-28</P>)