Service difficulty report · Frame · Boeing 7378H4

Difficulty date
August 24, 2022
Submitted
September 26, 2022
Operation
Air carrier
Aircraft
N8649A
Make and model
Boeing 7378H4
Aircraft serial
42527
Aircraft time
27,113 hours, 12,631 cycles
Part
Frame
Condition
Cracked
Location
Fuselage
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

STA 312 FRAME IS CRACKED L/H ABOVE FWD ENTRY DOOR CUTOUT. / [01] ACCOMPLISHED HFEC INSPECTION MARKED END OF CRACK IAW 737 NDTM PART 6; 51-00-00 PROCEDURE 23 TOOL# ATS729 CAL. DUE 07/2023.;[02] BLENDED DAMAGED AREA AT FR 312 LOWER CUTOUT RADIUS ABOVE FED UPPER WEB.<BR>REMOVED APPX 0.03' FROM UPPER CHORD LOWER CUTOUT RADIUS RELATIVE TO SKIN; AND 0.15' RELATIVE TO FED UPPER WEB.;[03] INSPECTED & VERIFIED CORRECTIVE ACTION ITEM 2.;[04] REQUEST NDI PERFORM HFEC INSPECTION OF TRIMMED EDGE AT BS STA 312 FRAME L/H ABOVE FWD ENTRY DOOR CUTOUT TO VERIFY CRACK FREE CONDITION.;[05] HFEC INSPECTED THE TRIMMED EDGE OF THE DAMAGE CUTOUT PER 737NDT PART 6 51-00-00 PROCEDURE 23. NO CRACKS FOUND. TOOL N500 IS000681 DUE 02/2023.;[06] COMPLETED STA 312 FRAME REPAIR ON CUSTOMER CARD #TTG8Q00EEGHD.;[07] CORRECTED MEASUREMENT TABLE FOR BS LOCATION.;[08] VERIFIED COMPLETION FAULT; VERIFIED MEASUREMENT TABLE.

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