Service difficulty report · Intercostal · Boeing 7377H4

Difficulty date
December 3, 2021
Submitted
January 4, 2022
Operation
Air carrier
Aircraft
N234WN
Make and model
Boeing 7377H4
Aircraft serial
32502
Aircraft time
52,359 hours, 31,270 cycles
Part
Intercostal
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; AFT CARGO FLOOR TO SIDEWALL SUPPORT INTERCOSTAL; BS 747 TO BS 767; RBL 21 ; / [01] EVALUATED CORROSION ON INTERCOSTAL; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; INTERCOSTAL WILL BE REPLACED UPON REPLACEMENT OF R/H FLOOR TO SIDEWALL SUPPORT ASSY FROM BS 727-767 ACCOMPLISHED ON CUST CARD TTG8Q009MXHF; [02] VERIFIED CORRECTIVE ACTIONS STEP 1.; [03] VERIFIED WORK CARD COMPLETE.

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