Service difficulty report · Frame · Boeing 7377H4

Difficulty date
July 25, 2021
Submitted
September 15, 2021
Operation
Air carrier
Aircraft
N446WN
Make and model
Boeing 7377H4
Aircraft serial
29842
Aircraft time
58,476 hours, 34,391 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 FRAME AT BS 312 ON FWD UPPER CORNER OF FWD ENTRY DOOR CUT OUT AT PASSENGER CABIN ; 2021-341940 / [01] TOOL USED: P/N: NORTEC 600D; S/N: 210138003; DUE DATE: 05-MAR-22.; [02] TOOLS USED: TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811020; DUE DATE: 21-JAN-22. TEMPERATURE CONTROLLER P/N: P3015GOES00000; S/N: 142811019; DUE DATE: 21-JAN-22.; [03] PERFORMED REPAIR ON FRAME AT BS 312 ON FWD UPPER CORNER OF FWD ENTRY DOOR CUT OUT AT PASSENGER CABIN IAW B737-700 SRM 53-10-07-2R-1 REPAIR 1 PARAGRAPH 4. THIS REPAIR IS CATEGORY B AND MUST BE INSPECTED AT 50;000 CYC INSPECTION THRESHOLD; 12;000 CYC REPEAT HFEC; [04] TASK CARD COMPLETED <BR>RII

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