Service difficulty report · Floorbeam · Boeing 7377H4

Difficulty date
July 9, 2021
Submitted
August 2, 2021
Operation
Air carrier
Aircraft
N962WN
Make and model
Boeing 7377H4
Aircraft serial
36963
Aircraft time
33,006 hours, 20,057 cycles
Part
Floorbeam
Condition
Cracked
Location
Bs 540
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

FLOOR SUPPORT BS 540; LBL 25 - BL 0; WL 208 CRACKED AT I/B FASTENER HOLE ; / [01] REMOVED AND INSTALLED FLOOR SUPPORT AT BS540 LBL 25 TO BL 0 WL 208 PER SRM 51-40-02 AND BOEING DWG 143A0060. FLOOR SUPPORT STILL REQUIRES MATCH DRILL OF FLOOR PANEL FASTENER HOLE.; [02] VERIFIED; [03] VERIFIED CORRECTIVE ACTION ITEMS 1 AND 2 REMOVAL AND INSTALLATION OF FLOOR SUPPORT AT BS 540 LBL 25 TO BL 0 WL 208 PER SRM 51-40-02 AND BOEING DWG 143A0060.<BR><BR>**FLOOR SUPPORT STILL REQUIRES MATCH DRILL OF FLOOR PANEL FASTENER HOLE.**; [04] LOCATED AND DRILLED FLOORPANEL HOLES ON FLOOR SUPPORT AT BS 540; LBL 25 - BL 0; WL 208 IAW SRM 51-40-05-OG-0.; [05] VERIFIED FLOOR PANEL HOLES IN THE NEW FLOOR SUPPORTS PER SRM 51-40-05-OG-0

More about the Boeing 737-7H4