Service difficulty report · Web · Boeing 7378H4

Difficulty date
March 22, 2022
Submitted
April 20, 2022
Operation
Air carrier
Aircraft
N8628A
Make and model
Boeing 7378H4
Aircraft serial
42384
Aircraft time
27,196 hours, 12,448 cycles
Part
Web
Condition
Corroded
Location
Aft Cargo
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

AFT CARGO BAY SUBTHRESHOLD WEB HAS CORROSION BS 8007+18 RBL25 WL 156 / [01] EVALUATED CORROSION ON SUBTHRESHOLD WEB BS 807+18 RBL 25 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.045 IN 1'X1' AREAS FOUND TO BE OUT OF LIMITS PER SRM 53-60-15-1A-1 USING DIAL DEPTH GAUGE ATS 1225;[02] VERIFIED CORRECTIVE ACTION 1.;[03] REMOVED AFT CARGO BAY; SUBTHRESHOLD WEB BS794 TO 847 RBL25 WL156; PER SRM 51-40-02-0G-0.;[04] LOCATED; DRILLED; COUNTERSUNK; AND DEBURRED NEW ACB SUBTHRESHOLD WEB BS 794 TO BS 847; RBL 25; WL 156 IAW SRM 51-40-05-0G-0; DWG# 146A8340.;[05] VERIFIED CORRECTION ACTION 4;[06] OK TO INSTALL ACB SUBTHRESHOLD WEB.;[07] VERIFIED CORRECTIVE ACTION 6.OK TO INSTALL GIVEN.;[08] INSTALLED NEW ACB SUBTHRESHOLD WEB BS 794 TO BS 847; RBL 25; WL 156 IAW SRM 51-40-02-0G-0; DWG# 146A8340.;[09] VERIFIED CORRECTIVE ACTION 8.

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