Service difficulty report · Rail · Boeing 7377H4

Difficulty date
November 4, 2021
Submitted
December 3, 2021
Operation
Air carrier
Aircraft
N206WN
Make and model
Boeing 7377H4
Aircraft serial
34011
Aircraft time
52,875 hours, 31,083 cycles
Part
Rail
Condition
Corroded
Location
Fuselage
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 RAIL AT AFT CARGO BAY LBL 12 WL 157 BS 772. ; / [01] REMOVED CORROSION FROM ACB RAIL BS 772 LBL 12 WL 157 MATERIAL LOSS MORE THAN 20% FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2; FIG 103 DETAIL E. <BR><BR> TOOL USED ID :ATS2318 ; S/N: B19006095 ; DATE : 05/2021 ; DUE : 05/2022 .[12] INSTALLED SPLICE REPAIR AT ACB LBL 12 WL 157 BS 772 IAW SRM 53-00-53-2R-2 ; PAR. 4. STEP Q ; FIG 203 DETAIL F.; [13] CERTIFIED ACTION 12; [14] VERIFIED CORRECTIVE ACTIONS STEP 12.; [15] FILL THE GAPS BETWEEN REPAIR AREA AND THE INITIAL PART AND APPLIED ONE LAYER CORROSION INHIBITING COMPOUND TO THE REPAIR AREA IAW SRM 53-00-53-2R-2.

More about the Boeing 737-7H4