Service difficulty report · Support · Boeing 737*

Difficulty date
February 10, 2022
Submitted
March 15, 2022
Operation
Air carrier
Aircraft
N465WN
Make and model
Boeing 737*
Aircraft serial
33829
Aircraft time
59,870 hours, 35,575 cycles
Part
Support
Condition
Corroded
Location
Fwd Cargo
Stage of operation
UK
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 FORWARD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT B.S. 500A-500D; R.B.L. 24. / [01] VERIFIED APPLICABILITY AS PER SRM 53-00-53-1A-2.<BR><BR>REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT AT BS500A+2 REWORKED AREA: L=1.4'; W=1'; MAX. MATERIAL LOSS=0.023' WAS FOUND OUT IAW SRM 53-00-53-1A-2 ITEM 4.A(2)A FIG. 103; DETAIL D.<BR><BR>TOOL USED:<BR>ID: ATS1672<BR>S/N: 65092939<BR>DUE: 03/2022;[02] VERIFIED CORRECTIVE ACTION 1 OUT OF LIMITS;[03] FABRICATED NEW FLOOR TO SIDEWALL SUPPORT AT BS500A - BS500D; WITH EXTRUSION BAC1496-444 7075T62; LOT# 1467644-1; IAW SRM 51-40-05 AND DWG 143A7501.;[04] VERIFIED CORRECTIVE ACTION 3;[05] APPLIED CHEMICAL CONVERSION COATING AND ONE LAYER OF PRIMER TO SURFACES OF FLOOR TO SIDEWALL SUPPORT IAW SRM 51-20-01 AND SOPM 20-41-02.;[06] VERIFIED CORRECTIVE ACTION ENTRY 5.;[07] OK TO INSTALL;[08] REMOVED FWD CARGO BAY SIDEWALL SUPPORT AT BS 500A-500D;RBL 24 WITH CUSTOMER CARD #5330-E-16461-NG (AD) ALSO APPLIED BMS 10-11 TYPE II ENAMEL P/N BAC702GL;PER REFERENCE SOPM 20-41-02 (SEE STEP17) APPLIED BMS3-35 CIC PER REFERENCE AMM 51-00-59;51-21-91 SEE STEP 27.OK TO INSTALL;[09] VERIFIED CORRECTIVE ACTION ENTRY 8.<BR><BR>OK TO INSTALL;[10] INSTALLED FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT AT BS 500D;RBL 24;IAW SRM 51-40-02-OG-0;AND DWG#143A7500.ALL MAINTENANCE ACTION ARE COMPLETED REQUIRE FINAL BUY OFF.;[11] VERIFIED CORRECTIVE ACTION #10;[12] VERIFIED TASK COMPLETE