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SDR SWAA2021112227909

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Service difficulty report · Frame Splice · Boeing 737*

FAA SDR system

Difficulty date
October 7, 2021
Submitted
November 22, 2021
Operation
Air carrier
Aircraft
N450WN
Make and model
Boeing 737*
Aircraft serial
32470
Aircraft time
58,641 hours, 34,716 cycles
System (JASC)
5311 · Fuselage Main, Frame
Part
Frame Splice
Condition
Corroded
Location
Fuselage
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 FRAME SPLICE AT AFT CARGO BAY BS787 RBL25 WL158. ; / [01] CORROSION ON SPLICE WAS FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS ARE GIVEN IN THE SRM.; [02] VERIFIED CORRECTIVE ACTION STEP 1.; [03] REMOVED ACB FRAME SPLICE BS787; RBL25; WL158. PER SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW ACB FRAME SPLICE BS787; RBL25; WL158. PER DWG 146A1262 AND SRM 51-40-05-0G-0. OK TO INSTALL.; [05] VERIFIED LOCATED AND DRILLED NEW ACB FRAME SPLICE BS787; RBL25; WL158. PER DWG 146A1262 AND SRM 51-40-05-0G-0. OK TO INSTALL.; [06] INSTALLED NEW ACB FRAME SPLICE BS787; RBL25; WL158. PER DWG 146A1262 AND SRM 51-40-02-0G-0.; [07] VERIFIED INSTALLED NEW ACB FRAME SPLICE BS787; RBL25; WL158. PER DWG 146A1262 AND SRM 51-40-02-0G-0.