Service difficulty report · Support Angle · Boeing 7377L9

Difficulty date
November 19, 2021
Submitted
January 10, 2022
Operation
Air carrier
Aircraft
N7817J
Make and model
Boeing 7377L9
Aircraft serial
28013
Aircraft time
55,382 hours, 27,558 cycles
Part
Support Angle
Condition
Corroded
Location
Bs 947 Rbl 12-14
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

CORROSION ON AFT BULKHEAD TO FLOOR SUPPORT AT AFT CARGO BAY BS947 LBL6; RBL12; RBL14; RBL20. MARKED. ; / [01] CORROSION ON SUPPORT FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.; [02] VERIFIED CORROSION FOUND OUT OF LIMITS DUE TO NO LIMITS STATED IN SRM; [03] REMOVED AFT BULKHEAD TO FLOOR SUPPORT AT ACB BS947; RBL23-LBL10; WL173 PER SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED AFT BULKHEAD TO FLOOR SUPPORT AT ACB BS947; RBL23-LBL10; WL173 PER SRM 51-40-05-0G-0 AND DWG 147A7500; DWG 149A8117; [05] VERIFIED CORRECTIVE ACTION 4; [06] OK TO INSTALL AFT BULKHEAD TO FLOOR SUPPORT; [07] VERIFIED OK TO INSTALL; [08] INSTALLED AFT BULKHEAD TO FLOOR SUPPORT AT ACB BS947; RBL23-LBL10; WL173 PER SRM 51-40-02-0G-0 AND DWG 147A7500; DWG 149A8117; DWG 1498110; [09] UPDATED PARTS TABLE; [10] REJECTED CORRECTIVE ACTION ENTRY 8.<BR><BR>IMPROPERLY INSTALLED DOME NUTPLATE ON FLOOR SUPPORT. FAULT CREATED; [11] PROPERLY INSTALLED DOME NUT PER SRM 51-40-02-0G-0 AND DWG 149A8117; [12] VERIFIED CORRECTIVE ACTIONS STEP 11.

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