Service difficulty report · Stringer · Boeing 7478F

Difficulty date
October 14, 2025
Submitted
November 21, 2025
Operation
Air carrier
Aircraft
N609UP
Make and model
Boeing 7478F
Aircraft serial
64254
Aircraft time
30,059 hours, 4,417 cycles
Part
Stringer
Part number
142U774443
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

STRINGER CRACKED, FWD SIDE OF STA 740 S-47L. ACCOMPLISHED REPAIR I.A.W UPS EO-95679-REQ1 REV.2 AND SRM 53-20-03-2R-5 TR 53-161 AND EGAT WORK SHEET NO.50753 AND EGAT EI NO.F2025A53M-2689 REV.0.

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