Service difficulty report · Beam · Boeing 7378H4

Difficulty date
February 6, 2023
Submitted
March 10, 2023
Operation
Air carrier
Aircraft
N8524Z
Make and model
Boeing 7378H4
Aircraft serial
36970
Aircraft time
20,203 hours, 9,817 cycles
Part
Beam
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 ON 947 FLOORBEAM; FWD FLANGE UPPER SURFACE AT RBL 23.5; RBL 52; WL 208.<[01] REMOVED CORROSION ON 947 FLOORBEAM; FWD FLANGE UPPER SURFACE AT RBL23.5; IN AN AREA OF 0.55'X1'X0.035; AT RBL52; IN AREA OF 0.6'X1.4'X0.051'; AREAS FOUND TO BE OUT OF LIMITS; IAW SRM 53-70-51-1A-1;;[24] COMPLETED REMOVED;REPAIRED ON 947 LBL 44-RBL58.6 FLOORBEAM TASK I.A.W SRM 53-70-51-2R-5 REP. 5 ALT.2

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