Service difficulty report · Stringer · Boeing 7377H4

Difficulty date
April 28, 2023
Submitted
May 25, 2023
Operation
Air carrier
Aircraft
N416WN
Make and model
Boeing 7377H4
Aircraft serial
32453
Aircraft time
70,967 hours, 42,001 cycles
Part
Stringer
Condition
Cracked
Location
Zn 100 Fus Lower
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

MAIN DISTRIBUTION BAY CRACK ON END OF STR 23R BS 540. PERFORMED GVI ON REPAIR AREA AND NO ADDITIONAL DAMAGE FOUND IAW EA 23-153-01413 AND SRM 53-00-03-2R-1 REP.1 PAR 4 B(1). INSTALLED ALL FASTENERS COMMON TO SKIN AND STRINGER SECTION STR-23R BS 500D+11'-540 EXCEPT FASTENER COMMON TO SPLICE IAW SRM 53-00-03-2R-1 REP. 1 PAR. 4K; EA 23-153-01413 AND DWG 143A3230;[13] VERIFIED CORRECTIVE ACTION STEP 12.;[14] OK TO INSTALL REPAIR SPLICE AND PARTS REMOVED FOR ACCESS;[15] VERIFIED CORRECTIVE ACTION ITEM 14; OK TO INSTALL.;[16] COMPLETED INSTALLATION OF REPAIR PARTS AT STR-23R BS500D+11'-540 IAW SRM 53-00-03-2R-1 REP. 1 PAR. 4K; EA 23-153-01413 AND DWG 143A3230.

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