Service difficulty report · Support Angle · Boeing 73773V

Difficulty date
August 10, 2021
Submitted
September 3, 2021
Operation
Air carrier
Aircraft
N7839A
Make and model
Boeing 73773V
Aircraft serial
30243
Aircraft time
57,802 hours, 35,522 cycles
Part
Support Angle
Condition
Cracked
Location
Bs 663 Bulkhead
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

CRACKED VERTICAL SUPPORT ANGLE ON AFT SIDE OF B.S. 663 LOWER COMPOSITE BULKHEAD AT L.B.L. 26; W.L. 150. ; / REMOVED VERTICAL SUPPORT ANGLE AFT SIDE BS 663 LOWER BULKHEAD LBL 26; WL 150 PER SRM 51-40-02; DAMAGE FOUND ON VERTICAL SUPPORT ANGLE ON AFT SIDE OF BS663 LOWER COMPOSITE BULKHEAD AT LBL26; WL150 P/N111A1308U15; FOUND TO BE OUT OF LIMITS ON SRM PART WILL BE REPAIRED BY REPLACEMENT IAW SRM 51-10-02-0G-0 PAR. 9.C. LOCATED AND DRILLED NEW VERTICAL SUPPORT ANGLE ON AFT SIDE OF BS663 COMPOSITE BULKHEAD AT LBL26 WL150; ITEM:111A1308U15; LOT #1459516-1; IAW SRM 51-40-05-0G-0 AND DWG#111A1000CORRECTION: LOCATED AND DRILLED NEW VERTICAL SUPPORT ANGLE ON AFT SIDE OF BS663 COMPOSITE BULKHEAD AT LBL26 WL150; ITEM:111A1308U15; LOT #1459516-1; IAW SRM 51-40-05-0G-0 AND DWG#111A1000; OK TO INSTALL.; [05] ADDED PART REQUIREMENT; VERIFIED CORRECTIVE ACTION STEP 4. OK TO INSTALL GIVEN C20 SEALANT USED MIX 18/AUG/21 AT 01:00AM; 100% TEMP. 0 PERMANENT FASTENER INSTALLED WITHIN SEALANT SQUEEZE OUT TIME REF. SOPM20-50-19; [08] C20 SEALANT USED MIX 18-AUG-2021 08:29 UTC; 100% TEMP. OR PERMANENT FASTENER INSTALLED WITHIN SEALANT SQUEEZE OUT TIME REF. SOPM20-50-19 INSTALLED NEW VERTICAL SUPPORT ANGLE ON AFT SIDE OF BS663 COMPOSITE BULKHEAD AT LBL26 WL150; ITEM:111A1308U15; LOT #1459516-1; IAW SRM 51-40-02-0G-0 AND DWG#111A1000

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