Service difficulty report · Support · Boeing 7377H4

Difficulty date
July 9, 2020
Submitted
August 17, 2021
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
54,363 hours, 32,167 cycles
Part
Support
Condition
Corroded
Location
Bs 400-420
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 - BS420 RBL23 WL157. / REMOVED. CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY B.S 400-B.S.420 RBL.23.WL.157 IAW. SRM 53-00-53-1A-2.BLEND FOUND TO BE OUT OF LIMIT IAW. SRM.53-00-53-1A-2.REMOVED.FCB.FLOOR TO SIDEWALL SUPPORT.IAW SRM.51-40-02-0G-0 FABRICATED.NEW.FLOOR TO SIDEWALL SUPPORT BS400-B.S.420 RBL23 WL.157 IAW. BOING DWG143A7501 REV.LOT142.6090-1 AND SRM 51-40-05 AND.INSTALLED NEW.FLOOR TO SIDE WALL SUPPORT IAW.SRM.51-40-02-0G-1 AND DWG.143A7501 59826U 07-14-2020 AND DWG143A7500

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