Service difficulty report · Web · Boeing 7377H4

Difficulty date
June 9, 2021
Submitted
July 16, 2021
Operation
Air carrier
Aircraft
N489WN
Make and model
Boeing 7377H4
Aircraft serial
33855
Aircraft time
54,253 hours, 32,244 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 WEB AT AFT CARGO BAY BS773 RBL20 WL157. ; / [01] UPDATED MEASUREMENT TABLE; [02] EVALUATED CORROSION ON WEB; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0 REMOVED WEB FROM BS 767 TO BS 787 RBL19 PER SRM 51-40-02; [03] VERIFIED PART OUT OF LIMITS AND REMOVAL PER SRM 51-10-02 AND SRM 51-40-02; [04] LOCATED; DRILLED; AND DEBURRED NEW WEB IN ACB BS 773 RBL20 WL157; PO#825756 IAW SRM 51-40-05 AND DWG #146A8123. OK TO INSTALL.; [05] VERIFIED LOCATED; DRILLED; AND DEBURRED NEW WEB IN ACB BS 773 RBL20 WL157; PO#825756 IAW SRM 51-40-05 AND DWG #146A8123. OK TO INSTALL.; [06] INSTALLED NEW WEB ACB BS767 TO 787 RBL 20 IAW SRM 51-40-02-0G-0 DWG 146A8123 DWG 146A0081; [07] INSTALLED NEW WEB ACB BS767 TO 787 RBL 20 IAW SRM 51-40-02-0G-0 DWG 146A8123 DWG 146A0081; VERIFIED INSTALLATION COMPLETED.; [08] INSTALLED NEW WEB ACB BS767 TO 787 RBL 20 IAW SRM 51-40-02-0G-0 DWG 146A8123 DWG 146A0081; VERIFIED INSTALLATION COMPLETED.

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