Service difficulty report · Doubler · Boeing 747428

Difficulty date
March 9, 2026
Submitted
May 12, 2026
Operation
Air carrier
Aircraft
N952CA
Make and model
Boeing 747428
Aircraft serial
25238
Aircraft time
18,511 hours, 18,018 cycles
Part
Doubler
Condition
Cracked
Location
Zone 300
Part time
118,511 hours, 18,018 cycles
Stage of operation
IN
How discovered
U
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

FINDING 002002 DOCUMENT FCD 744-53-0057-DURING C-CHECK 0.7" CRACK HAS EXTENDED FROM THE STOP HOLE OF THE PREVIOUS CRACK AT R/H STABILIZER UPPER LOBE DOUBLER. REPAIR WAS COMPLTED PER FAA 8100-9 DATED 0/21/2006 ON BOEING SERVICE REQUEST 202603060065-0011.