Service difficulty report · Support Angle · Boeing 737790

Difficulty date
September 30, 2021
Submitted
October 4, 2021
Operation
Air carrier
Aircraft
N557WN
Make and model
Boeing 737790
Aircraft serial
30166
Aircraft time
66,485 hours, 32,340 cycles
Part
Support Angle
Condition
Corroded
Location
Fuselage
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

CORROSION ON SUPPORT ANGLE BS 1016+23' RBL 6 - RBL 12 W/L 306.5<REMOVED 3EA FASTENERS AT SUPPORT ANGLE BS.1016+23 RBL.9 TO RBL.12 IAW SRM 51-40-02 REMOVED CORROSION AT SUPPORT ANGLE BS.1016+23 RBL.9 TO RBL.12 REWORKED DIMENSION L:3' X W:0.750' IAW SRM 51-10-02. HFEC INSPECTED ANGLE BLENDOUT AREA IAW B737 NDTM P6 51-00-00 PROC 23. NO CRACKS NOTED. HFEC INSPECTED OPEN HOLES IAW B737 NDTM P6 51-00-00 PROC 16. LOCATED AND DRILLED ANGLE BS 1016+23 LBL 12 - RBL 12 IAW SRM 51-40-05 DWG# 148A3110. APPLIED CHEMICAL CONVERSION COATING ON ANGLE PER SRM 51-20-01