Service difficulty report · Rail · Boeing 737*

Difficulty date
February 4, 2022
Submitted
March 22, 2022
Operation
Air carrier
Aircraft
N216WR
Make and model
Boeing 737*
Aircraft serial
32488
Aircraft time
52,760 hours, 31,347 cycles
Part
Rail
Condition
Corroded
Location
Aft 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

ACB FLOOR RAIL RBL3. HAS VISIBLE TWIST BETWEEN BS767 AND BS787 / [01] SRM 53-00-53-1A-2 ALLOWABLE DAMAGE IS APPLICABLE FOR THIS AIRCRAFT.;[02] DAMAGE TO RAIL FOUND TO BE OUT OF ALLOWABLE DAMAGE LIMITS IAW SRM 53-00-53-1A-2.;[03] REMOVED DAMAGED PART OF RAIL IAW SRM 51-10-02.;[04] MATERIAL ID FOR CHANNEL FILLER: BAC1509-100146 7050-T76511 LOT 1459408-1 IAW SRM 53-00-53-2R-2; ALTERNATIVE 1; FIGURE 203/REPAIR 2; DETAIL A; TABLE 201.;[05] VERIFIED ACTION 1-4;[06] ACCOMPLISHED HFEC INSPECTION OF CUTOUT EDGES NO CRACK NOTED IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23 TOOL# ATS2353;[07] LOCATED AND DRILLED NEW RAIL AND SPLICES BETWEEN BS 767 TO BS 807; RBL 3 ; IAW SRM 53-00-53-2R-2; ALTERNATIVE 3 ; FIGURE 203; APPLIED CHEMICAL CONVERSION ON NEW RAIL AND SPLICES IAW AMM 51-21-41-370-802; OK TO APPLY PRIMER;[08] FABRICATED SPLICE -6 FROM MATERIAL ID BAC1510-1355#7050T76511 ; LOT# 1460992-1;[09] FABRICATED SPLICE -6 FROM MATERIAL ID BAC1510-1355#7050T76511 ; LOT# 1460992-1; IAW SRM 53-00-53-2R-2; ALTERNATIVE 3 ; FIGURE 203; DRILLED SPLICE -2 P/N 7530199;[10] VERIFIED CORRECTIVE ACTION STEPS 7;8 AND 9.;[11] APPLIED PRIMER ON NEW RAIL AND SPLICES IAW AMM 51-21-72-370-804; OK TO INSTALL PARTS;[12] VERIFIED CORRECTIVE ACTION STEP 11. VERIFIED OK TO INSTALL.;[13] INSTALLED RAIL REPAIR PARTS BETWEEN BS 767 TO BS 807; RBL 3 ; IAW SRM 53-00-53-2R-2; ALTERNATIVE 3 ; FIGURE 203;[14] VERIFIED CORRECTIVE ACTION 13.