Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
June 13, 2022
Submitted
July 14, 2022
Operation
Air carrier
Aircraft
N488WN
Make and model
Boeing 7377H4
Aircraft serial
33853
Aircraft time
59,468 hours, 35,169 cycles
Part
Sidewall Support
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

CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 867+19. / [01] REMOVED FLOOR SUPPORT SPLICE ON AFT CARGO BAY BS887 LBL4 TO RBL20 WL168 IAW SRM 51-40-02;[02] UPON FURTHER INVESTIGATION FOUND TO BE NO ALLOWABLE LIMITS FOR DAMAGE IN SRM. PART TO BE REPLACED PER SRM 51-10-02-0G-0 PARAGRAPH 9.;[03] VERIFIED CORRECTIVE ACTION 3.;[04] RECEIVED ON AFT CARGO BAY FLOOR SUPPORT SPLICE BS 887 LBL 21 ITEM146A7506-17 PO#872160. LOCATED AND DRILLED IAW SRM 51-40-05 AND DWG146A7502.<BR>OK TO INSTALL;[05] VERIFIED CORRECTIVE ACTION 4. OK TO INSTALL SPLICE;[06] INSTALLED ON AFT CARGO BAY FLOOR SUPPORT SPLICE BS 887 LBL 21 IAW SRM 51-40-02 AND DWG 146A7502;[07] VERIFIED CORRECTIVE ACTION 6.

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