Service difficulty report · Door Frame · Boeing 73776N

Difficulty date
April 18, 2022
Submitted
May 10, 2022
Operation
Air carrier
Aircraft
N7729A
Make and model
Boeing 73776N
Aircraft serial
32675
Aircraft time
50,989 hours, 25,541 cycles
Part
Door Frame
Condition
Cracked
Location
L1 Door Cutout
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 FOUND ON FRAME AT STA 328 ABOVE L1 DOOR CUTOUT. / [01] CONFIRMED CRACK AT STA 328 FRAME ABOVE L1 DOOR CUTOUT IAW NDTM PART 6;51-00-00 PROCEDURE 23.<BR>CRACK LENGTH : 0.157';[02] TRIMMED OUT FRAME INNER CHORD TO REMOVE DAMAGE AT STA 328 BETWEEN S-5L AND S-6L AS PER REFERENCE B737-700 SRM 51-10-02 AND EA NO 22-153-01194-WIP1;[03] VERIFIED STEP 2.;[04] PERFORMED HFEC INSP ON TRIMMED OUT AREA IAW B737 NDT P6 51-00-00 PROC.23; NO CRACKS<BR>TOOL USED : NORTEC 600 B/C 166317 CALDUE: 10/22;[05] PERFORMED A INSURANCE CUT OF 0.040' AS PER REFERENCE EA NO: 22-153-01194-WIP1.;[06] VERIFIED STEP 5.;[07] REMOVED FASTENERS AT REPAIR AREA AS PER REF B737-700 SRM 51-40-02-0G-0;[08] VERIFIED STEP 7.;[09] ACCOMPLISHED A VISUAL INSPECTION OF ALL ADJACENT STRUCTURES IN THE AREA OF THE REPAIR; NO DEFECTS NOTED.;[10] PERFORMED ROTO INSP ON 6EA FASTENER HOLES IAW B737 NDT P6 51-00-00 PROC.16 NO CRACKS NOTED<BR>TOOL USED : NORTEC 600 B/C 166317 10/22;[11] OK TO INSTALL FASTENERS AT REPAIR AREA.;[12] INSTALLED FASTENER REMOVED IN STEP 7 AS PER REF B737-700 SRM 51-40-02-0G-0;[13] VERIFIED STEP 12. OK TO TREAT AND PRIME TRIMMED OUT FRAME INNER CHORD.;[14] TREATED AND PRIMED TRIMMED OUT FRAME INNER CHORD AS PER REF SOPM 20-43-03 AND 20-41-02;[15] VERIFIED STEP 14.;[16] ACCOMPLISHED REPAIR PER EA 22-153-01194.;[17] VERIFIED STEP 16.

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