Service difficulty report · Bracket · Boeing 73776Q

Difficulty date
January 13, 2023
Submitted
February 16, 2023
Operation
Air carrier
Aircraft
N565WN
Make and model
Boeing 73776Q
Aircraft serial
30282
Aircraft time
56,383 hours, 37,305 cycles
Part
Bracket
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 BRACKET AT BS 947+1 LBL 2.<[01] THE STRUCTURAL ITEM DOES NOT HAVE ALLOWABLE DAMAGE ENTRIES .THEREFORE HAS TO BE REPAIRED BY REPLACEMENT PER REF SRM 51-10-02-0G-0;[02] REMOVED BRACKET LOCATED BETWEEN BS 947 - RBL3; LBL3 IAW SRM 51-40-02.<BR>BRACKET FORMED FROM MATERIAL 7075T0# 0.063' LOT: 1477375-1 IAW SRM 51-30-01 AND DWG#147A9100 REV: D. FORMED BRACKET IT WILL BE SENT TO O.S.S FOR HEAT TREATMENT AT T62.;[03] VERIFIED CORRECTIVE ACTION STEPS 1 AND 2.;[04] RECEIVED BRACKET HFAB53-BR-011 FROM OSS PO NBR 903477<BR><BR>LOCATED AND DRILLED NEW BRACKET PER REF SRM 51-40-05<BR><BR>OK TO APPLY CHEMICAL CONVERSION COATING AND PRIME ON BRACKET;[05] VERIFIED CORRECTIVE ACTION STEP 4. VERIFIED OK TO CHEMICAL CONVERT AND PRIME.;[06] APPLIED CHEMICAL CONVERSION COATING AND PRIMER AT DISCREPANCY AREA PER REF SRM 51-20-01 AND SOPM 20-41-02 <BR><BR>OK TO INSTALL NEW BRACKET.;[07] VERIFIED CORRECTIVE ACTION STEP 6. VERIFIED OK TO INSTALL NEW BRACKET.;[08] INSTALLED BRACKET AT BS 947+1 LBL 2. PER REF SRM 51-40-02 AND DWG NBR 147A7500;[09] VERIFIED CORRECTION ACTION STEP 8.;[10] VERIFIED MEASUREMENT TABLE AND TASK CARD COMPLETE.

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