Service difficulty report · Frame · Boeing 7377H4

Difficulty date
June 23, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N940WN
Make and model
Boeing 7377H4
Aircraft serial
36900
Aircraft time
39,596 hours, 24,067 cycles
Part
Frame
Condition
Cracked
Location
Bs 312
Stage of operation
IN
How discovered
V
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 ON FRAME BS 312 ABOVE FWD ENTRY DOOR UPPER SILL WEB. ; / [01] ET INSPECTED CRACK IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; VERIFIED CRACK AND MARKED ENDS.<BR><BR>CAL ID ATS1465 N600; [02] REMOVED CRACK ON FRAME STA 312 ABOVE FWD ENTRY DOOR UPPER SILL WEB. AREA REMOVED WAS .300' BY 1' JUST ABOVE STR 6L PER SRM 51-10-02-0G-0.; [03] VERIFIED REMOVAL OF CRACK ON FRAME STA 312 ABOVE FWD ENTRY DOOR UPPER SILL WEB PER SRM 51-10-02-0G-0; [04] ET INSPECTED CUT OUT IAW 737 NDTM PART 6 51-00-00 PROCEDURE 23; VERIFIED CRACK AND MARKED ENDS. <BR><BR>CAL ID ATS1465 N600; [05] EDIT ITEM 4:<BR>REMOVE 'VERIFIED CRACK AND MARKED ENDS'; CUT OUT IS CRACK FREE.; [06] REMOVED CRACK ON FRAME STA 312 ABOVE FWD ENTRY DOOR UPPER SILL WEB. AREA REMOVED WAS .300' BY .300' JUST ABOVE STR 6L PER SRM 51-10-02-0G-0; [10] COMPLETED PER EA 21-153-1861; [11] VERIFIED CORRECTIVE ACTION #10

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