Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
October 7, 2022
Submitted
October 17, 2022
Operation
Air carrier
Aircraft
N213WN
Make and model
Boeing 7377H4
Aircraft serial
34217
Aircraft time
58,305 hours, 34,791 cycles
Part
Doubler
Condition
Cracked
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

EGPR SURROUND DOUBLER IS CRACKED ON AFT SIDE OF DOOR CUT OUT BS 219.8+15' BETWEEN S-21R & S-22R AT WL 180 / [01] REMOVED EXISTING -1 DOUBLER IAW SRM 51-40-02-0G-0;[02] TRIMMED OUT DAMAGED AREA ON EGPR SURROUND DOUBLER IAW SRM 53-10-15-2R-4 REPAIR 4;[03] ACCOMPLISHED 10X VISUAL INSPECTION OF TRIM OUT AREA NO DEFECTS NOTED IAW SRM 53-10-15-2R-4 REPAIR 4;[04] HFEC IAW B737 NDT PART 6; 51-00-00 PROC 23. NO DEFECTS NOTED. TOOL#31823; DUE 23DEC22;[05] ACCOMPLISHED INSURANCE CUT OF TRIM OUT AREA IAW SRM 53-10-15-2R-4 REPAIR 4;[06] VERIFIED MATERIAL FOR NEW -1 DOUBLER 2024-T3-.050 ATAG A83990 IAW SRM 53-10-15-2R-4 REPAIR 4;[07] VERIFIED STEPS 1-3 AND 5-6;[08] VERIFIED STEPS 2 THRU 7 C/W;[09] FABRICATED NEW -1 DOUBLER IAW SRM 53-10-15-2R-4 REPAIR 4;[10] VERIFIED STEP 9;[11] VERIFIED STEPS 9 & 10 C/W;[12] OK GIVEN TO TREAT AND PRIME;[13] TREATED AND PRIMED -1 DOUBLER AND TRIM OUT IAW SRM 53-10-15-2R-4 REPAIR 4;[14] VERIFIED STEP 13;[15] VERIFIED STEPS 13 & 14 C/W;[16] OK GIVEN TO INSTALL REPAIR PARTS;[17] INSTALLED NEW -1 DOUBLER AND INITIAL RUBBING BLOCK IAW SRM 53-10-15-2R-4 REPAIR 4 SRM 51-40-02-0G-0;[18] VERIFIED JOB IS COMPLETE;[19] VERIFIED STEPS 17 & 18 C/W; JOB COMPLETE; AUDIT C/W;[20] JOB COMPLETE; AUDIT C/W

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