Service difficulty report · Web · Boeing 737*

Difficulty date
October 7, 2021
Submitted
November 19, 2021
Operation
Air carrier
Aircraft
N780SW
Make and model
Boeing 737*
Aircraft serial
27885
Aircraft time
68,861 hours, 40,837 cycles
Part
Web
Condition
Corroded
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

CORROSION ON 1016 BULKHEAD WEB AT B.S. 1016; L.B.L. 2; W.L. 190. ; / [01] EVALUATED CORROSION ON BS 1016 BULKHEAD WEB LBL2 WL190 REMOVED .005' IN A AREA OF 1'X1' ORIGINAL THICKNESS 0.032' FOUND OUT OF LIMITS PER SRM 53-80-08-1A-1 USING ATS TOOL ID # ATS1225 S/N UNKNOWN;[10] FABRICATED REPAIR PARTS; APPLIED CHEMICAL CONVERSION COATING AND PRIMER PER EA 21-153-03150. REQUEST OK TO INSTALL.; [11] VERIFIED CORRECTIVE ACTIONS STEP 10 AND OK TO INSTALL GIVEN.; [12] INSTALLED PERMANENT FASTENERS BEFORE SQUEEZE OUT TIME; APPLIED SEALANT AT 8:30AM UTC TIME (1:30AM LOCAL TIME) 10/27/2021.; [13] VERIFIED CORRECTIVE ACTIONS STEP 12.; [14] REPAIRED PER SWA EA # 21-153-03150; [15] VERIFIED REPAIRED PER SWA EA # 21-153-03150.; [16] VERIFIED ALL STEPS COMPLETE.