SDR SWAA2020050542865

Service difficulty report · Support · Boeing 7377H4

Difficulty date: April 15, 2020
Submitted: May 5, 2020
Operation: Air carrier
Aircraft: N460WN
Make and model: Boeing 7377H4
Aircraft serial: 32464
Aircraft time: 56,047 hours, 33,294 cycles
System (JASC): 5312 · Fuselage Main, Bulkhead
Part: Support
Condition: Corroded
Location: Fuselage
Stage of operation: IN
How discovered: V
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 FLOOR TO BULKHEAD PANEL SUPPORT AT FCB BS500D WL157 LBL21 TO RBL21. MARKED / DAMAGE FOUND ON FCB AFT BULKHEAD LOWER SUPPORT BS500D LBL21 - RBL-21 WL-157 FOUND TO BE OUT OF LIMIT DUE TO NO LIMIT ON SRM PARTS REPAIRED BY REPLACMENT IAW SRM 51-10-02-0G-0 PAR 9.C LOCATED AND DRILLED IAW SRM 51-40-05-0G-0 AND DWG# 143A9481 REV.A ITEM# 7530142 AND INSTALLED IAW SRM 51-40-02-0G-0 AND DWG# 143A7902

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