Service difficulty report · Floor Support · Boeing 7378H4

Difficulty date
December 30, 2023
Submitted
January 29, 2024
Operation
Air carrier
Aircraft
N8677A
Make and model
Boeing 7378H4
Aircraft serial
36650
Aircraft time
27,106 hours, 13,052 cycles
Part
Floor Support
Part number
UNKNOWN
Condition
Corroded
Location
Bs 747-
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

AFT CARGO COMPARTMENT FLOOR STRUCTURE; RIGHT SIDE PLATE HAS AREAS OF UPPER AND LOWER SURFACE CORROSION FROM STA747+2 - STA747+18<[01] REMOVED CORROSION FROM AFT CARGO R/H SIDE PLATE FROM STA 747+2 TO STA 747+18. ORIGINAL MATERIAL THICKNESS IS 0.040?; MAX MATERIAL LOSS IS 0.008?; MAX ALLOWED IS 0.004?; FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2.<BR><BR>AFT CARGO R/H TRANSITION ANGLE WILL BE REPLACED FROM STA 727+4 TO STA 767 REF TTG8Q00QRRH4;[02] AFT CARGO R/H TRANSITION ANGLE WILL BE REPLACED FROM STA 727+4 TO STA 767 REF TTG8Q00QRRH4

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