Service difficulty report · Floorbeam · Boeing 7378H4

Difficulty date
April 23, 2024
Submitted
May 23, 2024
Operation
Air carrier
Aircraft
N8573Z
Make and model
Boeing 7378H4
Aircraft serial
64250
Aircraft time
19,244 hours, 9,887 cycles
Part
Floorbeam
Part number
UNKNOWN
Condition
Corroded
Location
Bs 948 Lbl 24
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

FOUND ADDITIONAL CORROSION AT A DEEPER DEPTH ON FLOOR BEAM 947.5 LBL 24 UPPER CHORD AT LAV MOUNT LOCATION.<[01] REMOVED ADDITIONAL CORROSION PER SRM 51-10-02. REMAINING THICKNESS IS .125';[02] C/W C.A. STEP 1. VERIFIED REMOVAL OF CORROSION AND REMAINING THICKNESS OF UPPER FLOOR BEAM CHORD IS .125'.;[03] REPAIRED PER EA 24-153-01064;[04] RII: VERIFIED CORRECTIVE ACTION #1 AND #3

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