Service difficulty report · Stringer · Boeing 7478F

Difficulty date
July 30, 2026
Submitted
August 21, 2026
Operation
Air carrier
Aircraft
N612UP
Make and model
Boeing 7478F
Aircraft serial
64258
Aircraft time
30,661 hours, 4,488 cycles
Part
Stringer
Condition
Cracked
Location
Zone 200
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

STRINGER CRACK, AFT SIDE OF STA 2360 AT S-3R. COMPLETED FOR PERFORM EGAT EI NO.2026A53M-1623 SEQUENCE B STEP 8. HEAT TREAT FROM 7075-O TO T62 CONDITION. 9. DYE PENETRANT INSPECT THE -6 AFT REPAIR STRINGER TO ENSURE A CRACK FREE CONDITION PER SOPM 20-20-02.RESULT:NO CRACK WAS FOUND. INSPECTION COMPLETED FOR PERFORMED EGAT EI NO.F2026A53M-1623 SEQUENCE B STEP 17. RESPECTIVELY PART MARK THE REPAIR PARTS RII COMPLETED FOR PERFORM EGAT EI NO.2026A53M-1623 SEQUENCE B STEP 18. VALIDATE SPECIALIZED PROCESS OUTLINED IN REPAIR INSTRUCTIONS WERE ACCOMPLISHED. 19. OK TO INSTALL.

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