Service difficulty report · Support · Boeing 737*

Difficulty date
March 1, 2022
Submitted
March 31, 2022
Operation
Air carrier
Aircraft
N763SW
Make and model
Boeing 737*
Aircraft serial
27877
Aircraft time
74,817 hours, 44,183 cycles
Part
Support
Condition
Corroded
Location
Aft Cargo
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 FLOOR TO SIDEWALL SUPPORT AT RBL 21 BS 907+6; BS 907+10; BS 907+13; BS 907+17. / [01] REMOVED CORROSION FROM ACB FLOOR TO SIDEWALL SUPPORT RBL21 BS 907+6 MEASURED 1.3'L X 1'W AND 0.005' DEEP FOUND OUT OF LIMITS<BR><BR>REMOVED CORROSION FROM ACB FLOOR TO SIDEWALL SUPPORT RBL21 BS 907+6 MEASURED 1'L X 1'W AND 0.0035' DEEP FOUND IN LIMITS<BR><BR>REMOVED CORROSION FROM ACB FLOOR TO SIDEWALL SUPPORT RBL21 BS 907+6 MEASURED 2'L X 1'W AND 0.0025' DEEP FOUND IN LIMITS<BR><BR>REMOVED CORROSION FROM ACB FLOOR TO SIDEWALL SUPPORT RBL21 BS 907+6 MEASURED 0.8'L X 0.5'W AND 0.0065' DEEP ORIGINAL THICKNESS OF 0.040' FOUND OUT OF LIMITS PER SRM 53-00-53-1A-2<BR><BR>CAL ID DIAL DEPTH GAUGE<BR>ATS1225<BR>S/N UNKNOWN<BR>DUE 07/2022;[05] FABRICATED REPLACEMENT FLOOR TO SIDEWALL SUPPORT USING ITEM: BAC1496-377#7075T62 LOT: 1477731-1 IAW SRM 51-40-02; SRM 51-40-08 SRM 51-40-05 AND DWG 147A7501 ID:0006 REV: A. APPLIED CHEMICAL CONVERSION COATING TO REPLACEMENT SIDEWALL SUPPORT IAW SOPM 20-41-02. OK TO APPLY PRIMER.;[06] FABRICATED REPLACEMENT FLOOR TO SIDEWALL SUPPORT USING ITEM: BAC1496-377#7075T62 LOT: 1477731-1 IAW SRM 53-60-53-0I-2 TABLE 2 ITEM 2; SRM 51-40-02; SRM 51-40-08 SRM 51-40-05 AND DWG 147A7501 ID:0006 REV: A. APPLIED CHEMICAL CONVERSION COATING TO REPLACEMENT SIDEWALL SUPPORT IAW SOPM 20-41-02. OK TO APPLY PRIMER.