Service difficulty report · Structure · Boeing 7378H4

Difficulty date
November 18, 2024
Submitted
December 16, 2024
Operation
Air carrier
Aircraft
N8517F
Make and model
Boeing 7378H4
Aircraft serial
63594
Aircraft time
26,450 hours, 13,157 cycles
Part
Structure
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

DOT#17 A-043 CABIN FLOOR STRUCTURE AFT WET AREA; CORROSION AROUND LAV MOUNT STA 947 LBL 25 WL 208<[01] 04 - REPAIRED CABIN FLOOR BEAM AT BSTA 947.5 BETWEEN LBL 8 TROUGH LBL 56 AND WL 208 PER [SRM 53-70-51-2R-5-B00675 (REPAIR 5 - SECTION 47 - LARGE CORROSION DAMAGE ON THE UPPER CHORD OF THE FLOOR BEAM AT STA 947.5 - PERMANENT)]<BR><BR>CABIN FLOOR STRUCTURE AFT WET AREA; FLOOR BEAM BSTA 947.5 AT WL 208 BETWEEN LBL 8 TO LBL 56;[02] VERIFIED STEP 1<BR>AUDIT CW

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