Service difficulty report · Web · Boeing 7378H4

Difficulty date
July 19, 2022
Submitted
August 8, 2022
Operation
Air carrier
Aircraft
N8642E
Make and model
Boeing 7378H4
Aircraft serial
42525
Aircraft time
27,092 hours, 12,498 cycles
Part
Web
Condition
Corroded
Location
Fwd 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

FWD CARGO BAY CENTER THRESHOLD WEB HAS CORROSION BS462 RBL28 WL156 / [01] EVALUATED CORROSION ON SUBTHRESHOLD WEB BS 462 RBL 28 WL 156; FOUND 0.015 REMOVED FROM ORIG 0.045 IN 1'X1' AREA; FOUND TO BE OUT OF LIMITS PER SRM 53-30-15-1A-1 USING DIAL DEPTH GAUGE ATS 2678 DUE 04/2023;[02] VERIFIED ACTION #1;[03] REMOVED FCB SUBTHRESHOLD WEB BS 440-492 RBL 28; WL 156 PER SRM 51-40-02.;[04] LOCATED; DRILLED; AND DEBURRED NEW FCB CENTER SUB THRESHOLD WEB BS 440 TO BS 492; RBL 28; WL 156 IAW SRM 51-40-05-0G-0; DWG#143A8330; DWG#143A8120.;[05] VERIFIED CORRECTIVE ACTION 4 AND MEQSUREMENT TABLE.;[06] OK TO INSTALL;[07] INSTALLED FWD CARGO BAY CENTER THRESHOLD WEB HAS CORROSION BS462 RBL28 WL156 IAW SRM 51-40-02-0G-0 AND DWG 143A8330;[08] CORRECTION: INSTALLED NEW FWD CARGO BAY CENTER SUB THRESHOLD WEB BS 440 TO BS 492; RBL 28 WL 156 IAW SRM 51-40-02-0G-0 AND 143A8330;[09] VERIFIED CORRECTIVE ACTION 6.<BR>OK TO INSTALL.;[10] UPDATED PARTS TABLE;[11] VERIFIED CORRECTIVE ACTION 8;[12] VERIFIED MEASUREMENT TABLE

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