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 727E, S5R, HFEC INSPECTED AREA IAW NDTM, PART 6; 51-00-00, PROCEDURE 23. CRACK NOTED. REMOVED THE STRINGER CLIP IAW SRM 51-40-02, LOCATED & DRILLED A NEW STRINGER CLIP IAW SRM 51-40-05, & DWG 146A1112, REV-. FABRICATED A NEW STRINGER CLIP FROM EXTRUSION BAC 1493-854, IAW SRM 51-30-01, & DWG 143A1010-1, REV C. OK TO TREAT AND PRIME APPLIED CHEMICAL CONVERSION COATING & PRIMED IAW AMM 51-21-41-370-802, AND AMM 51-21-72-370-804. INSTALLED A STRINGER CLIP IAW SRM 51-40-02, & DWG 146A1112, REV-.

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