Service difficulty report · Floor Support · Boeing 737

Difficulty date
March 31, 2022
Submitted
April 21, 2022
Operation
Air carrier
Aircraft
N769SW
Make and model
Boeing 737
Aircraft serial
30588
Aircraft time
74,146 hours, 43,614 cycles
Part
Floor Support
Part number
146A750125
Condition
Corroded
Location
Aft Cargo Bay
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 ACB FLOOR SUPPORT AT STA 727A+10; 727B+10; 727D+4 ; RBL 14; WL 156. / RBL 14; WL 156 FOUND TO OUT OF LIMITS WITH REMAINING OF .053' OF ORIGINAL THICKNESS .063'. IAW SRM 53-60-53-0I-2; SRM 53-00-53-1A-2 AND BAC1509-100146<BR><BR>DEPTH GAUGE USED ID:ATS2473 DUE:07:2022;[02] VERIFIED CORRECTIVE ACTION 1;[03] REMOVED DAMAGED TIE DOWN TRACK AT BS 727 TO SLICE AT BS 747+9'; RBL 14; WL 156 IAW SRM 51-40-02;[ REMOVED CARGO TRACK AT BS 747+9 TO BS 887 ; RBL 14; WL 156 IAW SRM 51-40-02-0G-0 LOCATED AND DRILLED TRACK ASSY PN 146A7501-25 COMMON TO FRAMES AND BAFFLE FROM BS727 TO BS887 IAW SRM 51-40-05; DWG 146A7500; DWG 146A7501. LOCATED AND DRILLED TRACK ASSY PN 146A7501-25 COMMON TO FRAMES AND BAFFLE FROM BS727 TO BS 747 AND BS 767 TO BS 887;RBL 14; WL156 IAW SRM 51-40-05; DWG 146A7500; DWG 146A7501;ID: 27;REV:A;OK TO INSTALL NEW CARGO TRACK ON ACB BS 727 TO BS 747 AND BS 787 TO BS 887 ; RBL 14; WL 156 INSTALLED NEW TRACK ASSY ACB FROM BS727 TO BS 747 AND BS 767 TO BS 887;RBL 14; WL156 IAW SRM 51-40-02-0G-0; DWG 146A7500;ID:0027;REV:A; DWG 146A7501;ID:0027;REV: LOCATED AND DRILLED SPLICE BETWEEN BS 747 TO BS 767; RBL 14; WL 156 IAW SRM 53-00-53-2R-3; OK TO INSTALL SPLICE; LOCATED AND DRILLED SPLICE P/N 146A7506-20 BETWEEN BS 747 TO BS 767; RBL 14; WL 156 IAW SRM 53-00-53-2R-3; OK TO INSTALL SPLICE; INSTALLED SPLICE BETWEEN BS 747 TO BS 767 ; RBL 14; WL 156 IAW SRM 53-00-53-2R-3;