Service difficulty report · Support · Boeing 737*

Difficulty date
October 27, 2021
Submitted
November 15, 2021
Operation
Air carrier
Aircraft
N915WN
Make and model
Boeing 737*
Aircraft serial
36888
Aircraft time
45,503 hours, 27,299 cycles
Part
Support
Part number
146A750227
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 TO SIDEWALL SUPPORT AT WL 153; STA 767+10; LBL 22; STA 767+14; LBL 22; STA 787+10; LBL 22; STA 787+14; LBL 22. ; / [01] CORRECTED MEASUREMENTS; [02] VERIFIED ACCOMPLISHMENT OF STEPS 1-4.; [03] FABRICATED ACB FLOOR TO SIDE WALL SUPPORT ANGLE BS 727 TO BS 847 LBL 22 WL 153 WITH SPLICER ANGLE AT BS 727E+10 MADE FROM EXTRUSION BAC1496-377#7075T62 LOT#5095753-1 IAW SRM 51-40-05-0G-0 AND DWG# 146A7502 OK TO TREAT AND PRIME; [04] VERIFIED FABRICATED ACB FLOOR TO SIDE WALL SUPPORT ANGLE BS 727 TO BS 847 LBL 22 WL 153 WITH SPLICER ANGLE AT BS 727E+10 MADE FROM EXTRUSION BAC1496-377#7075T62 LOT#5095753-1 IAW SRM 51-40-05-0G-0 AND DWG# 146A7502.<BR>VERIFIED OK TO TREAT AND PRIME.; [05] APPLIED CHEMICAL CONVERSION COATING AND PRIMED ACB FLOOR TO SIDE WALL SUPPORT AND SPLICE ANGLE BS 727 TO BS 847 LBL 22 IAW SRM 51-20-01-0G-0 AND SOPM 20-41-02 AND WILL BE INSTALLED WITH CUSTOMER MOC CARD# TTG8Q004E68F; [06] VERIFIED APPLIED CHEMICAL CONVERSION COATING AND PRIMED ACB FLOOR TO SIDE WALL SUPPORT AND SPLICE ANGLE BS 727 TO BS 847 LBL 22 IAW SRM 51-20-01-0G-0 AND SOPM 20-41-02. <BR>VERIFIED WILL BE INSTALLED WITH CUSTOMER MOC CARD# TTG8Q004E68F.