Service difficulty report · Stringer · Boeing 7377CT

Difficulty date
October 27, 2025
Submitted
December 1, 2025
Operation
Air carrier
Aircraft
N7881A
Make and model
Boeing 7377CT
Aircraft serial
35084
Aircraft time
56,447 hours, 30,369 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

CRACKED STRINGER 7L, BS 296, LBL 41, WL 274. THE DAMAGE WAS REPAIRED IAW SRM 53-00-03-2R-1, REPAIR 1, AND EA 25-153-02976 WITH AN INSPECTION PROGRAM DEFINED IN 25-153-02976-INSP. HFEC INSPECTED AREA IAW NDTM PART 6, 51-00-00, PROCEDURE 23. CRACK NOTED. NO ALLOWABLE LIMIT FOUND FOR SPECIFIC LOCATION ON SRM 53-00-03-1A-1, ALLOWABLE DAMAGE 1, THEREFORE REPAIR IS NEEDED. REPAIR PROVIDED IAW SRM IS NOT APPLICABLE DUE TO LIMITATION GIVEN SRM 53-00-03-2R-1, REPAIR 1, PAR 1.C.(2) INITIAL STRINGER ON FWD AND AFT DIRECTIONS IS LESS THEN 20'. ENGINEERING WILL BE CONTACTED TO FURTHER REPAIR INSTRUCTIONS.

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