Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
September 26, 2021
Submitted
November 1, 2021
Operation
Air carrier
Aircraft
N420WN
Make and model
Boeing 7377H4
Aircraft serial
29825
Aircraft time
66,751 hours, 39,284 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 27L LOCATED ON BS 540 AT FWD CARGO COMPARTMENT ; 2021-436057 / [28] INSTALLED NEW STRINGER SECTION ;CHANNEL (1 E/A); ANGLES (2 E/A); TIE CLIP ( 1 E/A ) AND FASTENER LOCATED ON STRINGER 27L BETWEEN STA 500D+10' TO STA 540. ON FWD CARGO COMPARTMENT I.A.W. B737-700 SRM 53-00-03-2R-1 REPAIR 1 PARAGRAPH 4.K AND SRM 51-40-02 AND DRAWING 143A3230 REV - AND DRAWING 143A1215 REV D; [29] REMOVED EWIS PROTECTION B,NG,NRC,2021-10-13 20:33:50,20Y,Y,MX,0,0,,CRACK STRINGER 27L LOCATED ON BS 540 AT FWD CARGO COMPARTMENT ; 2021-436057"

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