Service difficulty report · Support · Boeing 7377H4

Difficulty date
June 16, 2021
Submitted
July 14, 2021
Operation
Air carrier
Aircraft
N226WN
Make and model
Boeing 7377H4
Aircraft serial
32494
Aircraft time
53,110 hours, 31,655 cycles
Part
Support
Condition
Corroded
Location
Bs 400-480
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 FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS400- BS480 LBL23 WL156. ; / [01] REMOVED SIDEWALL SUPPORT ANGLE AT BS400-480; LBL23; WL156 IAW SRM 51-40-02 <BR>REMOVED CORROSION ON SIDEWALL SUPPORT ANGLE L:1'; W:1'; D:0.008';WAS FOUND OUT OF LIMIT DUE MATERIAL LOSS EXCEED 10% OF THICKNESS IAW SRM 53-00-53-1A-2.; [02] VERIFIED; [03] FABRICATED; LOCATED AND DRILLED NEW FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS 400-BS500D LBL23 WL156 MADE FROM EXTRUSION BAC1496-444#7075T62; LOT#1457306-1 AND FABRICATED SPLICE ANGLE AT BS 480+9 LBL 23 WL 156 MADE FROM EXTRUSION BAC1496-444#7075T62; LOT#1457306-1 IAW SRM 51-40-05-0G-0 ;SRM 53-00-53-2R-5 REPAIR-5 AND DWG# 143A7501

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