Service difficulty report · Floorbeam · Boeing 7377K9

Difficulty date
September 25, 2020
Submitted
July 21, 2021
Operation
Air carrier
Aircraft
N7878A
Make and model
Boeing 7377K9
Aircraft serial
34320
Aircraft time
46,793 hours, 22,683 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs887 Lbl8-Rbl20
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 SUPPORT SPLICE AT AFT CARGO BAY BS887 LBL8 TO RBL20 WL 168. / REPAIR BY REPLACEMENT FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS 887 LBL 8-RBL 20. LOCATED AND DRILLED HOLES; INSTALLED NUT PLATES; APPLIED CORROSION INHIBITING COMPOUND AND INSTALLED NEW T-ASSY PN7530863 PO# 8000028 IAW SRM 51-40-05-0G-0; SRM 51-40-08-0G-0; SRM 51-40-02-0G-0; AMM 51-21-91-620-802; AND DWG 146A7500 REV B 59581U 01OCT2020

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