Service difficulty report · Support Bracket · Boeing 7377H4

Difficulty date
December 19, 2024
Submitted
January 23, 2025
Operation
Air carrier
Aircraft
N275WN
Make and model
Boeing 7377H4
Aircraft serial
36153
Aircraft time
57,230 hours, 34,436 cycles
Part
Support Bracket
Condition
Cracked
Location
Zone 100
Stage of operation
IN
How discovered
V
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

CRACK SUPPORT BRACKET ON PNEUMATIC DUCT BS 540 AND LBL 6 AT AIR CONDITIONING BAY 2024-767104<[01] REPLACED SUPPORT BRACKET ON PNEUMATIC DUCT BS 540 AND LBL 6 AT AIR CONDITIONING BA I.A.W B737-700 SRM 51-40-02-0G-0 AND SOPM 20-50-01. LOCKING TORQUE IS 18 IN-LB AND 30 IN-LB. TOOL USED. DIGITAL CALIPER P/N: 500-197-30 S/N: A23355868 DUE DATE: 09-NOV-25 AND TORQUE P/N: QD1R50 S/N: 1211125200 DUE DATE: 14-APR-25.;[02] STEP 1 CORRECTED <BR>REPLACED SUPPORT BRACKET ON PNEUMATIC DUCT BS 540 AND LBL 6 AT AIR CONDITIONING BAY I.A.W B737-700 SRM 51-40-02-0G-0 AND SOPM 20-50-01. LOCKING TORQUE IS 18 IN-LB AND 30 IN-LB. TOOL USED. DIGITAL CALIPER P/N: 500-197-30 S/N: A23355868 DUE DATE: 09-NOV-25 AND TORQUE P/N: QD1R50 S/N: 1211125200 DUE DATE: 14-APR-25.;[03] REPLACED SUPPORT BRACKET ON PNEUMATIC DUCT BS 540 AND LBL 6 AT AIR CONDITIONING BAY I.A.W B737-700 SRM 51-40-02-0G-0 AND SOPM 20-50-01. LOCKING TORQUE IS 18 IN-LB AND 30 IN-LB. TOOL USED. DIGITAL CALIPER P/N: 500-197-30 S/N: A23355868 DUE DATE: 09-NOV-25 AND TORQUE P/N: QD1R50 S/N: 1211125200 DUE DATE: 14-APR-25.

More about the Boeing 737-7H4