Service difficulty report · Stringer Clip · Boeing 7377H4

Difficulty date
January 27, 2026
Submitted
February 24, 2026
Operation
Air carrier
Aircraft
N922WN
Make and model
Boeing 7377H4
Aircraft serial
32461
Aircraft time
57,706 hours, 34,981 cycles
Part
Stringer Clip
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 CLIP, BS 727C, S7L. ACCOMPLISHED HFEC SURFACE SCAN OF STRINGER CLIP AREA IAW NDTM, PART 6, CHAPTER 51-00-00, PROCEDURE 23. VERIFIED CRACKED. REMOVED BS 727C; S-7L STRINGER CLIP PER SRM 51-40-02. LOCATED AND DRILLED NEW STRINGER CLIP PER SRM 51-40. FABRICATED NEW STRINGER CLIP IAW SRM 51-30-01, AND DWG 143A1010-1, REV C. TREATED, & APPLIED CHEMICAL CONVERSION COATING & PRIMED IAW AMM 51-21-41-370-802, & AMM 51-21-72-370-804. INSTALLED THE NEW STRINGER CLIP IAW SRM 51-40-02, DWG 146A1103 REV 05, AND DWG 146A1103, REV-.

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