Service difficulty report · Support · Boeing 7377BX

Difficulty date
February 25, 2020
Submitted
March 24, 2020
Operation
Air carrier
Aircraft
N552WN
Make and model
Boeing 7377BX
Aircraft serial
30744
Aircraft time
59,169 hours, 33,658 cycles
Part
Support
Part number
143A7501
Condition
Corroded
Location
Fuselage
Stage of operation
IN
How discovered
V
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 FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT B.S. 400-500D, L.B.L. 22, W.L. 155. SIDE PLATE CHANNEL FOUND IT OUT OF LIMITS IAW SRM 53-00-53 IN MULTIPLES AREAS 1 X 1 OVER 50% MATERIAL LOSS. FABRICATED FLOOR TO SIDEWALL SUPPORT AT BS 400-500D LBL 22 FROM BAC 1496-444 #7075 T62 LOT # 1426040-1 LOCATED AND DRILLED IAW DWG 143A7501 REV B AND FABRICATED ZEE CHANNEL SPLICE BS 490 LBL 22 FROM BAC 1496-444 # 7075 T62 CLAD LOT # 1426040-1 LOCATED AND DRILLED IAW SRM 53-00-53-2R-6 REPAIR 6. APPLI

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