Service difficulty report · Web · Boeing 7377H4

Difficulty date
September 26, 2022
Submitted
November 9, 2022
Operation
Air carrier
Aircraft
N201LV
Make and model
Boeing 7377H4
Aircraft serial
29854
Aircraft time
59,586 hours, 35,374 cycles
Part
Web
Condition
Corroded
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

CORROSION ON 1016 WEB AT AFT PASSENGER CABIN BS1016+12 LBL6 TO LBL14. MARKED. / [01] SRM 53-70-51-1A-1 ALLOWABLE DAMAGE 1 IS APPLICABLE TO THIS A/C<BR>REMOVED CORROSION ON ON 1016 WEB AT AFT PASSENGER CABIN BS1016+12 LBL6 TO LBL14.WL 208.1 IAW SRM 51-10-02. REWORKED AREA L=6'XW=8'MAX MATERIAL LOSS 0.008' REMAINING THICKNESS IS 0.032' ORIGINAL THICHNESS IS 0.040' PER DWG 147A5600.-FOUND TO BE OUT LIMITS AW SRM 53-70-51-1A-1 ALLOWABE DAMAGE 1. <BR>TOOL ID USED: ATS 1671<BR>S/N: 65093024<BR>DATE: 01/2022<BR>DUE: 01/2023;[02] VERIFIED APPLICABILITY OF SRM 53-70-51-1A-1 FOR ALLOWABLE DAMAGE;[03] REMOVED WEB AT AFT PASSENGER CABIN BS1016+12 LBL6 TO LBL14 WL 208.1 SRM 51-40-02.-;[04] RECIVED NEW SHEAR WEB LOT: 1504798-1 PO: 885522 LOCATED AND DRILLED NEW SHEAR WEB AT BS BS 1016 LBL6 TO LBL14 WL 208.1; IAW 737-700 SRM 51-40-05-0G-0 DWG 157A5600. OK TO INTALL.-;[05] REQUIRES CLEANING TO REMOVE SHEET METAL SHAVINGS IN REPAIR AREA;[06] CLEANED AND REMOVED FOD AROUND REPAIR AREA IAW SOPM 20-30-03 OK TO INSTALL WEB;[07] VERIFIED CORRECTIVE ACTION 4 AND 6 OK TO INSTALL GIVEN;[08] INSTALLED AFT PASSENGER CABIN WEB AT BS 1016 TO BS 1031; LBL 0 TO LBL 37; WL 208 IAW SRM 51-40-02-0G-0 AND DWG#147A5600 REV-B;[09] VERIFIED CORRECTIVE ACTION #8<BR>VERIFIED MEASUREMENTS

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