Service difficulty report · Support · Boeing 7377CT

Difficulty date
October 13, 2022
Submitted
November 17, 2022
Operation
Air carrier
Aircraft
N569WN
Make and model
Boeing 7377CT
Aircraft serial
33656
Aircraft time
66,340 hours, 34,395 cycles
Part
Support
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

CORROSION ON AFT CARGO BAY AFT LOWER BULKHEAD SUPPORT AT RBL 20 BS 947. / [01] REMOVED AFT LOWER BULKHEAD SUPPORT IAW SRM 51-40-02-0G-0.<BR><BR>NO ALLOWABLE DAMAGE AND SO PART IS REPAIRABLE BY REPLACEMENT; IAW SRM 51-10-02-0G-0 STEP 9.;[02] VERIFIED CORRECTIVE ACTION STEP 1.;[03] RECEIVED; LOCATED AND DRILLED NEW LOWER BULKHEAD SUPPORT P/N:149A8118U29 LOT#1507725-1; PO#889509 PER SRM 51-40-05-0G-0; OK TO INSTALL;[04] VERIFIED ITEM 3 CORRECTIVE ACTIONS. OK TO INSTALL.;[05] PARTS INFO;[06] INSTALLED NEW LOWER BULKHEAD SUPPORT P/N:149A8118U29 LOT#1507725-1; PO#889509 PER SRM 51-40-02-0G-0; AIPC 53-11-51-01; DWG#149A8117;[07] MEASURMENT TABLE NEEDS TO BE CORRECTED FROM MAJOR REPAIR TO MINOR REPAIR FOR PRIMARY STRUCTURE REMOVE AND REPLACE.;[08] UPDATED MEASUREMENT 19;[09] RII VERIFIED CORRECTIVE ACTION ITEM 5-8.;[10] MEASUREMENT FIELD ITEM 20 IS INCORRECT; PHOTO IS ATTACHED DUE TO LEVEL 2.;[11] UPDATED MEASUREMENT 20;[12] VERIFIED CORRECTIVE ACTION ITEMS AND MEASUREMENT FIELDS; CARD COMPLETE.

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