Service difficulty report · Support · Boeing 7377H4

Difficulty date
September 28, 2021
Submitted
October 27, 2021
Operation
Air carrier
Aircraft
N263WN
Make and model
Boeing 7377H4
Aircraft serial
32520
Aircraft time
46,043 hours, 27,465 cycles
Part
Support
Condition
Corroded
Location
Fuselage
Stage of operation
UK
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 FLOOR TO SIDEWALL SUPPORT AT STATION 747+18; RBL 21; WL 154 ; / [01] REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT RBL21, WL 154, BS 747E+18, MEASURES L=0.600'; W=0.500'; D=0.007'. ORIGINAL THICKNESS=0.040', MATERIAL REMOVED, 0.007', REMAINING MATERIALTHICKNESS 0.033'. THE SIDEWALL SUPPORT IS OUT OF LIMITS. I.A.W. SRM 53-00-53-1A-2; ALLOWABLE DAMAGE 2; STEP 4.2A. TOOL USED MICROMETER ID:ATS1671; DUE DATE: 01/2022.; [02] INSPECTED AND VERIFIED ACTION 1; [03] THIS DISCREPANCY WILL ACCOMPLISHED ON CARD TTG8Q006Q898..

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