Service difficulty report · Flange · Boeing 7377H4

Difficulty date
April 2, 2023
Submitted
April 14, 2023
Operation
Air carrier
Aircraft
N924WN
Make and model
Boeing 7377H4
Aircraft serial
36628
Aircraft time
48,640 hours, 29,389 cycles
Part
Flange
Condition
Cracked
Location
Zn 100 Fus Lower
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 LOWER FLANGE IS CRACKED<[01] NDT IAW B737-700 SRM 53-10-15-2R-4; PAGE 2; STEP 4.C (7) AND D; TOOL # 44291; DUE 03NOV23; NO DEFECTS NOTED.;[02] OK TO TREAT AND PRIME;[03] LOCATED AND DRILLED EXTERNAL POWER DOOR CUTOUT DOUBLER AND FILLER IAW SRM51-40-02-0G-0 AND SRM 53-10-15-2R-4;[04] TREATED AND PRIMED IWA SRM 53-10-15-2R-4 STEP 4-K AND L;[05] VERIFIED STEPS 3 AND 4<BR><BR>OK TO INSTALL REPAIR PARTS;[06] INSTALLED DOUBLER AND FILLER ON TO POWER DOOR CUTOUT IAW SRM 53-10-15-2R-4 STEPS 4.M 1THRU 5 AND SRM 51-40-02-0G-0;[07] VERIFIED STEP 6 COMPLETE<BR><BR>OK TO TOP COAT;[08] APPLIED TOP COAT IAW SRM 53-10-15-2R-4 STEP 4.N;[09] VERIED TASK COMPLETE

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