Service difficulty report · Stringer · Boeing 7478F

Difficulty date
September 8, 2025
Submitted
September 22, 2025
Operation
Air carrier
Aircraft
N608UP
Make and model
Boeing 7478F
Aircraft serial
64255
Aircraft time
30,199 hours, 4,418 cycles
Part
Stringer
Part number
146U771343
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, FWD AND AFT SIDE OF STA 2180 S-22L (LEVEL1) (REPAIR)FABRICATED REPAIR SPLICE I.A.W. EGAT WORK SHEET NO. 50696 STEP 14 (SRM 53-60-03-2R-12 REV.46/TR:53-160).PERFORMED THE HEAT TREATMENT FROM 7075-O TO T62 CONDITION I.A.W. EGAT WORK SHEET NO.:50696 STEP 15. (SRM 53-60-03-2R-12 REV.46 / TR:53-160) AND SPWPS-HT-008 REV.35 AND SPDS-HT-005 REV.37.PERFORMED EO-95232-REQ1 REV.1 AND EI NO.F2025A53M-2149 REV.0 AND EGAT WORK SHEET NO.50696.

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