SDR SWAA2021072288586

Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date: June 2, 2020
Submitted: July 22, 2021
Operation: Air carrier
Aircraft: N500WR
Make and model: Boeing 7378H4
Aircraft serial: 36898
Aircraft time: 21,274 hours, 9,362 cycles
System (JASC): 5315 · Fuselage Main, Floor Beam
Part: Floorbeam
Condition: Corroded
Location: Bs 500i
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*** FWD CARGO BAY AFT BULKHEAD TO FLOOR SUPPORT HAS CORROSION AT STA 500I LBL 23 TO RBL 23 WL 157 / REMOVED DAMAGED FWD CARGO BAY AFT BULKHEAD TO FLOOR SUPPORT AT BS 500I LBL 23 TO RBL 23 WL 152. FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53 FIG 103 DETAIL D. INSTALLED REPLACEMET PART PO# 778494 FROM STA 500I LBL 23 TO RBL 23 WL 157 IAW SRM 51-40-02 AND BOEING DWG# 143A9481 + 143A7902. 57828U 6/5/2020

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