Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
June 21, 2022
Submitted
July 27, 2022
Operation
Air carrier
Aircraft
N486WN
Make and model
Boeing 7377H4
Aircraft serial
33852
Aircraft time
59,624 hours, 35,506 cycles
Part
Sidewall Support
Part number
146A75021
Condition
Corroded
Location
Aft Cargo Bay
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 AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727C+18; 727D+3; BS 727D+5; BS 727D+7; BS 727D+1; BS 727D+14; BS 727E+2; BS 727E+6; BS 727E+10. / [01] VERIFIED APPLICABILITY AS PER SRM 53-00-53-1A-2;[02] VERIFIED STEPS 1-6- OUT OF LIMITS.;[03] DUE TO OUT OF LIMITS STATEMENTS SIDEWALL SUPPORT TO BE REPLACE AT BS727 TO BS 847 AT LBL21 ON FAULT TTG8Q00D4XMT;[04] VERIFIED CORRECTIVE ACTION 3 AND MEASUREMENT TABLE

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