Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
September 20, 2021
Submitted
November 1, 2021
Operation
Air carrier
Aircraft
N414WN
Make and model
Boeing 7377H4
Aircraft serial
29820
Aircraft time
67,826 hours, 39,808 cycles
Part
Stringer
Condition
Cracked
Location
Fuselage
Stage of operation
IN
How discovered
9
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

CRACK STRINGER 25R LOCATED BS540 AT FWD CARGO COMPARTMENT ; 2021-431835 / [23] STEP 22 CERTIFIED RII COMPLETE; [24] APPLIED PROTECTIVE TREATMENT ON REPAIR PARTS AND CUT AREA LOCATED AT STR 25R AND BTW BS 500C TO BS 540 (-7 REPLACEMENT STRINGER SECTION; -2 CHANNEL; -3 ANGLES 2EA) I.A.W SRM B737-700 51-20-01; [25] OK TO INSTALL TIE CLIP (5 E/A) LOC BS 500C TO 520 AND STR 23R TO 25R ; SHEAR TIE (5 E/A ) LOC BS 500C TO 520 BTW STR 22R TO STR 25R ; FRAME SPLICE LOC BS 500C STR 25R; WEB LOC BS 500D TO BS 520 STR 25,NG,NRC,2021-10-14 16:51:22,20Y,Y,MX,0,0,,CRACK STRINGER 25R LOCATED BS540 AT FWD CARGO COMPARTMENT ; 2021-431835"

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