Service difficulty report · Plate · Boeing 7378H4

Difficulty date
November 12, 2024
Submitted
January 3, 2025
Operation
Air carrier
Aircraft
N8621A
Make and model
Boeing 7378H4
Aircraft serial
36917
Aircraft time
36,708 hours, 17,583 cycles
Part
Plate
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

CORROSION FORWARD CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT PLATE HAS MULTIPLE AREAS AROUND NUT PLATE HOLES BS 500B TO BS 500I RBL24 WL156<[01] CORROSION ON FORWARD CARGO BAY R/H FLOOR TO SIDEWALL SUPPORT PLATE FOUND TO BE OUT OF LIMITS. REMOVED; REPLACED AND ISTALLED NEW FLOOR TO SIDEWALL SUPPORT PLATE AT BS 500A RBL 24 WL 156 PER SRM 53-00-53-1A-2; SRM 51-40-02-0G-0; DWG 143A7500 REV: -. AND DWG 143A7505 REV: -.;[02] VERIFIED CORRECTIVE ACTION 1

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