Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
June 17, 2021
Submitted
July 14, 2021
Operation
Air carrier
Aircraft
N226WN
Make and model
Boeing 7377H4
Aircraft serial
32494
Aircraft time
53,110 hours, 31,655 cycles
Part
Floorbeam
Condition
Corroded
Location
Bs 947
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 AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT AFT CARGO BAY BS947 LBL8 TO RBL15 WL180. ; / [01] NO ALLOWABLE DAMAGE FOUND AT SRM FOR THIS PART; PART REQUIRED TO BE REMOVED AND REPLACE IAW SRM 51-10-02-0G-0 PAR 9.; [02] VERIFIED; [03] REMOVED AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT ACB BS 947; LBL8 TO RBL 15 WL 180; IAW SRM 51-40-02-0G-0; [04] LOCATED AND DRILLED NEW AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT ACB BS 947; LBL8 TO RBL 15 WL 180 ITEM# 149A8118U29 LOT#1461545 IAW SRM 51-40-05-0G-0 ; OK TO INSTALL; [05] NO ALLOWABLE DAMAGE FOUND AT SRM FOR THIS PART; PART REQUIRED TO BE REMOVED AND REPLACE IAW SRM 51-10-02-0G-0 PAR 9.; [06] VERIFIED OK TO INSTALL.; [07] INSTALLED NEW AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT ACB BS 947; LBL8 TO RBL 15 WL 180 ITEM# 149A8118U29 LOT#1461545 ; IAW SRM 51-40-02-0G-0; DWG#149A8117; [08] UPDATED PARTS USAGE; [09] VERIFIED INSTALLED NEW AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT ACB BS 947; LBL8 TO RBL 15 WL 180 ITEM# 149A8118U29 LOT#1461545 ; IAW SRM 51-40-02-0G-0; DWG#149A8117.; [10] RE-VERIFIED INSTALLED NEW AFT BULKHEAD TO FLOOR SUPPORT ANGLE AT ACB BS 947; LBL8 TO RBL 15 WL 180 ITEM# 149A8118U29 LOT#1461545 ; IAW SRM 51-40-02-0G-0; DWG#149A8117.

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