Service difficulty report · Doubler · Boeing 7377H4

Difficulty date
June 28, 2021
Submitted
July 26, 2021
Operation
Air carrier
Aircraft
N913WN
Make and model
Boeing 7377H4
Aircraft serial
29840
Aircraft time
43,304 hours, 26,170 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

EXTERNAL POWER DOOR CUTOUT BARE STRAP ALONG AFT EDGE IS CRACKED AT PREVIOUS REPAIR ; / [01] SRM 53-10-15-2R-4 REPAIR 4 IS APPLICABLE TO THIS A/C; [02] VERIFIED APPLICABILITY OF SRM 53-10-15-2R-4 REPAIR 4. IS APPLICABLE.; [03] REMOVED PREVIOUS -1 REPAIR DOUBLER IAW SRM 51-40-02; [04] FABRICATED -1 REPAIR DOUBLER FROM 2024T3#0.050' CLAD LOT#1453158-1. TREATED IAW SRM 53-10-15-2R-4 REPAIR 4 TABLE 201. OK TO PRIME; [05] VERIFIED FABRICATION OF NEW -1 REPAIR DOUBLER FROM 2024T3#0.050' CLAD LOT#1453158-1. VERIFIED PART TREATED IAW SRM 53-10-15-2R-4 REPAIR 4 TABLE 201. OK TO PRIME; [06] PRIMED REPAIR PART AND REWORKED AREA IAW SRM 53-10-15-2R-4 REPAIR 4 STEP 4L.... OK TO INSTALL; [07] VERIFIED PRIMER APPLICATION IAW SRM 53-10-15-2R-4 REPAIR 4 STEP 4L. OK TO INSTALL.; [08] INSTALLED -1 REPAIR DOUBLER AT EXTERNAL POWER DOOR CUTOUT PER SRM 53-10-15-2R-4 REPAIR 4; [09] VERIFIED INSTALLATION -1 REPAIR DOUBLER AT EXTERNAL POWER DOOR CUTOUT PER SRM 53-10-15-2R-4 REPAIR 4.; [10] APPLIED FILLED SEAL GAPS AND APPLIED TOPCOAT AREA AT EXTERNAL POWER DOOR CUTOUT PER SRM 53-10-15-2R-4 REPAIE 4; [11] ALL ITEMS COMPLETED; [12] VERIFIED APPLIED FILLED SEAL GAPS AND APPLIED TOPCOAT AREA AT EXTERNAL POWER DOOR CUTOUT PER SRM 53-10-15-2R-4 REPAIR 4.; [13] VERIFIED ALL STEPS COMPLETE.

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