Service difficulty report · Torque Box · Boeing 737924ER

Difficulty date
January 26, 2023
Submitted
January 27, 2023
Operation
Air carrier
Aircraft
N63890
Make and model
Boeing 737924ER
Aircraft serial
42194
Aircraft time
23,407 hours, 8,460 cycles
Part
Torque Box
Part number
148A8636
Condition
Punctured
Location
Bs 1102
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

TORQUE BOX BEAM WEB PUNCTURED AR BS 1102 LBL 9 . VERIFIED CUTOUT OUTBOARD OF LBL 11. NDT PERFORMED A OPEN HOLE HIGH FREQUENCY EDDY CURRENT. REMOVED LT ACCESS IN APU BAY FOR ACCESS - TORQUE CUT OUT DMG JUST OTBD LBL 11 ANGLE IAW 51-70-13-2R-1 STEP 4. PERFORMED HFEC OF CUTOUT AND EXISTING FASTENERS. ACCOMPLISHED SRM 51-70-13-2R-1 STEPS 4B UP TO AND INCLUDING 4I VERYFIED REPAIR DOUBLERS IAW SRM 51-70-13-2R-1 STEPS 4B UP TO CUTOUT BOX WEB IAW SRM 51-0-02 A. NDT 51-00-00 23 & 16 NO DEFECTS NOTED. REPLACEMENT ANGLE IAW SRM 51-70-13-2R-1. INSTALLED REPAIR DOUBLER AND SHIMS IAW SRM 51-70-13-2R-1 REPAIR 1. ACCESS PANEL INSTALLED REPAIR DOUBLER AND SHIMS IAW SRM 51-70-13-2R-1.