Service difficulty report · Sidewall Support · Boeing 7377H4

Difficulty date
May 12, 2023
Submitted
June 20, 2023
Operation
Air carrier
Aircraft
N429WN
Make and model
Boeing 7377H4
Aircraft serial
33658
Aircraft time
66,602 hours, 39,316 cycles
Part
Sidewall Support
Part number
UNKNOWN
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

FORWARD CARGO COMPARTMENT - MULTIPLE AREA OF CORROSION ON AFT BULKHEAD SIDE WALL SUPPORT BS500C+18.25 STRG 19L TO STR 25L. (MARKED)<[01] REMOVED CORROSION ON AFT BULKHEAD SIDE WALL SUPPORT BS500C+18.25 STRG 19L TO STR 25L. PER REF SRM 53-30-08-1A-1 L=1;W=1<BR><BR>BLEND OUT EVALUATION ORIGINAL MATERIAL IS .071'' REMAINING THICKNESS IS .040'' .THEREFORE FOUND TO BE OUT OF LIMITS PER REF SRM 53-30-08-1A-1;[02] SRM 53-30-08-0I-1 IDENTIFICATION AND SRM 53-30-08-1A-1 ALLOWABLE DAMAGE ARE APPLICABLE;[03] RECEIVED NEW ON FORWARD CARGO COMPARTMENT AFT BULKHEAD SIDEWALL SUPPORT BS500C+18.25 STR19L TO STR 25L P/N 143A9485-30 PO#921400;[04] VERIFIED CORRECTIVE ACTION 3;[05] PART WILL BE INSTALLED IN COSTUMNER CARD #5330-E-16461-NG;[06] VERIFIED CORRECTIVE ACTION 5

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