Service difficulty report · Skin · Boeing 73776Q

Difficulty date
January 5, 2023
Submitted
February 16, 2023
Operation
Air carrier
Aircraft
N565WN
Make and model
Boeing 73776Q
Aircraft serial
30282
Aircraft time
56,383 hours, 37,305 cycles
Part
Skin
Condition
Cracked
Location
Zn 300 Stabilize
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

CRACK IN RH HORIZ STAB LWR SKIN; STAB STA 193.9 INBD FASTENER ROW; 17' FROM L/E; 1.2' IN LENGTH. FOUND USING HFEC INSPECTION METHOD. MARKED.<[01] SRM 55-10-01-0I-4 IDENTIFICATION 4 AND SRM 55-10-01-2R-11 REPAIR 11 ARE APPLICABLE TO THIS A/C;[02] CUT AND REMOVED THE DAMAGED AREA OF THE SKIN BY 2.6'LX1.0'W IAW SRM 55-10-01-2R-11 REPAIR 11;[03] VERIFIED CORRECTIVE ACTION 1 AND 2;[04] REQUESTED HFEC INSPECTION OF THE CUT EDGE TO MAKE SURE THAT ALL THE DAMAGE IS REMOVED IAW SRM 55-10-01-2R-11 REPAIR 11 STEP 4D(1)(A);[05] ACCOMPLISHED HFEC SURFACE SCAN OF CUT EDGES IAW 737 NDTM PART 6 CHAPTER 51-00-00 PROCEDURE 23.<BR>NO CRACKS NOTED.<BR><BR>EQUIPMENT USED: NORTEC 600 ID: ATS1465 CAL DUE: 09/2023;[06] FABRICATED -1 REPAIR DOUBLER FROM 2024T3#0.080' CLAD LOT#1497191-1. TREATED IAW SRM 55-10-01-2R-11 REPAIR 11. OK TO PRIME;[07] VERIFIED CORRECTIVE ACTION ITEM 6; OK TO PRIME.;[08] APPLIED BMS 10-79 PRIMER TO REPAIR PART AND REWORKED AREA IAW SRM 55-10-01-2R-11 REPAIR 11.....OK TO INSTALL;[09] VERIFIED CORRECTIVE ACTION ITEM 8; OK TO INSTALL.;[10] INSTALLED REPAIR PART IAW SRM 55-10-01-2R-11 REPAIR 11;[11] RII VERIFIED CORRECTIVE ACTION ITEM 10.;[12] APPLIED FILLET SEAL AROUND THE EDGES OF -1 DOUBLER AND APPLIED FINISH IAW SRM 55-10-01-2R-11.;[13] VERIFIED CORRECTIVE ACTION 12 AND MEASUREMENT TABLE.

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