Service difficulty report · Web · Boeing 737*

Difficulty date
February 4, 2022
Submitted
March 21, 2022
Operation
Air carrier
Aircraft
N216WR
Make and model
Boeing 737*
Aircraft serial
32488
Aircraft time
52,760 hours, 31,347 cycles
Part
Web
Condition
Corroded
Location
Fwd Cargo
Stage of operation
UK
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 FCB DOOR CUT-OUT SUB-THRESHOLD WEB FROM STA 460 TO STA 480+4; RBL 28; WL 156. / [01] REMOVED CORROSION ON FCB DOOR CUT-OUT SUB-THRESHOLD WEB AT AREA 1 BS460 RBL 28 L=1' X W=1' D= 0.009' REMAINING THICKNESS = 0.036 FROM ORIGINAL THICKNESS= 0.45'. AREA 2 BS480+4 RBL28 L=0.5' W=0.5' D= 0.006 REMAINING THICKNESS =0.039 BOTH FOUND TO BE OUT OF LIMITS IAW SRM 53-30-15-0I-1 AND SRM 53-30-15-1A-1<BR>TOOL USED<BR>DIAL DEPTH GAUGE<BR>ID:ATS2473<BR>S/N: UNKNOWN;[02] UPDATED MEASUREMENTS;[03] UPDATED MEASUREMENTS;[04] VERIFIED CORRECTIVE ACTION 1; OUT OF LIMITS;[05] RECEIVED NEW WEB FROM STORES; PO 852090;PN 143A8122-10<BR>LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG 143A8330.<BR>INSTALLED NUTPLATES IAW SRM 51-40-02.<BR>COUNTERSINKING OF FASTENER HOLES ACCOMPLISHED IAW SRM 51-40-08.;[06] UPDATED MEASUREMENTS;[07] UPDATED MEASUREMENTS;[08] VERIFIED APPLICABLY OF SRM 53-30-15-1A-1;[09] VERIFIED CORRECTIVE ACTION #5; 8