Service difficulty report · Frame · Boeing 7377H4

Difficulty date
July 1, 2021
Submitted
July 30, 2021
Operation
Air carrier
Aircraft
N751SW
Make and model
Boeing 7377H4
Aircraft serial
29803
Aircraft time
74,739 hours, 44,231 cycles
Part
Frame
Condition
Cracked
Location
R1 Door
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

FOUND CRACKED INTERNAL FRAME ASSY. AT R-1 DOOR FWD. UPPER CORNER. ; / [01] LOCATE AND STARTED DRILLING PROCESS OF NEW FRAME ASSEMBLY P/N 141A8370U13 P/O# 1617089 PER B737-700 SRM 51-40-02-0G-0; [02] VERIFIED STEP 1; [03] LATE ENTRY : REMOVED DAMAGED STUB FRAME AS PER B737-7 SRM 51-40-02-0G-0.; [04] STUB FRAME ASSY. FOUND OUT OF LIMITS(NO CRACKS PERMITED )AS PER B737-7 SRM 53-10-15-1A-2 FIG. 102.; [05] LOCATED & COMPLETED DRILLING OF NEW STUB FRAME AS PER B737-7 SRM 51-40-05-0G-0; & DWG. 141A8370.; [06] ACCOMPLISHED TOP COAT APPLICATION TO NEW STUB FRAME PER B737-700 AMM 51-21-73-370-803; [07] OK TO INSTALL NEW STUB FRAME; [08] MIXED BMS 5-95 SEALANT AT 7:30AM 7/16/2021 SQUEEZE OUT TIME BY 3:30 AM 7/17/2021; [09] INSTALLED NEW STUB FRAME AT R-1 DOOR FWD UPPER CORNER PER B737-700 SRM 51-40-02-0G-0 AND DRAWING #141A8370; [10] VERIFIED STEPS 8 & 9

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