Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
November 8, 2022
Submitted
December 6, 2022
Operation
Air carrier
Aircraft
N954WN
Make and model
Boeing 7377H4
Aircraft serial
36669
Aircraft time
38,324 hours, 23,332 cycles
Part
Stringer
Condition
Corroded
Location
Bs 540 S23r
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

CORROSION ON FWD CARGO BAY END OF STRINGER 23R, BS 540. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-03-1A-1 ALLOWABLE DAMAGE 1. CUT AND REMOVED THE DAMAGE PART OF STRINGER FROM BS 500D+11.5 TO 540 IAW SRM 53-00-03-2R-1 REPAIR 1. HFEC INSPECTED REPAIR AREA IAW NDTM PART 6 51-00-00, PROCEDURE 23. NO CRACKS NOTED. FABRICATED A REPLACEMENT STRINGER SECTION AND HAT SECTION SPLICE. TREATED IAW EA 22-153-03347-WIP1 AND SRM 53-00-03-2R-1, REPAIR 1. PRIMED REPAIR PARTS AND REWORKED AREAS IAW SRM 53-00-03-2R-1 REPAIR 1 AND IAW SOPM 20-41-02. THE DAMAGE WAS REPAIRED IAW SRM 53-00-03-2R-1, REPAIR 1, AND EA 22-153-03350.

More about the Boeing 737-7H4