Service difficulty report · Bulkhead Web · Boeing 747412F

Difficulty date
September 1, 2026
Submitted
September 1, 2026
Operation
Air carrier
Aircraft
N489MC
Make and model
Boeing 747412F
Aircraft serial
26553
Aircraft time
122,398 hours, 21,317 cycles
Part
Bulkhead Web
Condition
Cracked
Location
Zone 100
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

LT WING LG WW FWD BULKHEAD LWR INBD WEB FOUND CRACKED. THE LT WLG WW FWD BULKHEAD LWR WEB REPAIRED IAW RI-52-49-18450, REV A. NO FURTHER DEFECTS NOTED.