Service difficulty report · Stringer · Boeing 7478

Difficulty date
September 9, 2025
Submitted
September 9, 2025
Operation
General aviation
Aircraft
N747US
Make and model
Boeing 7478
Aircraft serial
40905
Aircraft time
25,860 hours, 2,808 cycles
Part
Stringer
Condition
Multiple Fail
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

PERFORMED GENERAL VISUAL INSPECTIONS OF STINGER SPLICE JOINTS ON AIRCRAFT. THESE LOCATIONS FALL OUTSIDE OF THOSE CURRENTLY IDENTIFIED BY AD’S AND SB’S FOR INSPECTION. IDENTIFIED THE FOLLOWING STRINGER CRACKS: STA 1000: S-2L, S-2AL, S-13R STA 1480: S-14R, S-19L STA 2484: S-15L, S-16L, S-20L, S-15R, S-16R, S-18R, S-19R, S-20R

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