Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
July 31, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N491WN
Make and model
Boeing 7377H4
Aircraft serial
33867
Aircraft time
53,758 hours, 31,898 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 887 L-Rbl 17
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 FLOOR SUPPORT SPLICE AT AFT CARGO BAY BS887 LBL7 TO RBL17 WL168. ; / [01] EVALUATED CORROSION; FOUND TO BE OUT OF LIMITS DUE TO NO LIMITS IN THE SRM AND REQUIRES REPLACEMENT PER SRM 51-10-02-0G-0; [02] VERIFIED CORRECTIVE ACTION ENTRY 1.; [03] REMOVED FLOOR SUPPORT SPLICE IN ACB BS 887; RBL 17 TO LBL 7; WL 168 IAW SRM 51-40-02-0G-0.; [04] LOCATED AND DRILLED NEW FLOOR SUPPORT SPLICE PER SRM 51-40-05 AND DWG 147A7500; [05] VERIFIED LOCATED AND DRILLED NEW FLOOR SUPPORT SPLICE PER SRM 51-40-05 AND DWG 147A7500; [06] OK TO INSTALL FLOOR SUPPORT SPLICE AT ACB BS887 LBL17 -RBL17 WL168; [07] OK TO INSTALL; [08] INSTALLED NEW FLOOR SUPPORT SPLICE AT ACB BS887 LBL17 -RBL17 WL168 PER SRM 51-40-02-0G AND DWG 147A7500; [09] VERIFIED INSTALLATION OF FLOOR SUPPORT SPLICE AT ACB BS887 LBL17 -RBL17 WL168 PER SRM 51-40-02-0G AND DWG 147A7500; [10] VERIFIED ALL WORK COMPLETE THIS TASK

More about the Boeing 737-7H4