Service difficulty report · Support · Boeing 7378H4

Difficulty date
October 31, 2023
Submitted
December 11, 2023
Operation
Air carrier
Aircraft
N8309C
Make and model
Boeing 7378H4
Aircraft serial
36985
Aircraft time
38,023 hours, 17,361 cycles
Part
Support
Part number
UNKNOWN
Condition
Corroded
Location
Zn 100 Fus Lower
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

FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT IS CORRODED AT BS 500D+8 - 500A; LBL 22; WL 155<[01] UPDATED STEP 7.;[02] UPDATED STEP 8;[03] UPDATED STEP 9;[04] REMOVED DAMAGED FLOOR TO SIDEWALL SUPPORT BS 480+8' TO BS 500I; LBL 22;WL 155 INSTALLED NEW SIDEWALL SUPPORT AT FCB BETWEEN BS 480+8' TO BS 500I; LBL 22;WL 155 IAW SRM 51-40-02 ;SRM 53-00-53-2R-5; DWG:143A7500 AND EA# M-22-153-01550. INSTALLED SPLICE REPAIR ON SIDEWALL SUPPORT BETWEEN BS 500D+4' TO BS 500D+15';[05] VERIFIED CORRECTIVE ACTION COMPLETE; WITH MEASUREMENTS.

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