Service difficulty report · Frame · Boeing 73776N

Difficulty date
August 29, 2023
Submitted
September 26, 2023
Operation
Air carrier
Aircraft
N7822A
Make and model
Boeing 73776N
Aircraft serial
32596
Aircraft time
65,627 hours, 33,285 cycles
Part
Frame
Part number
UNKNOWN
Condition
Cracked
Location
Zn 200 Fus Top
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

FED CUTOUT SURROUND STRUCTURE - CRACK ON UPPER CHORD FRAME ASSY BS 312 STR-5L<[01] REQUEST NDI TO VERIFY CRACK AND IF CRACKED MARK ENDS OF CRACK BS 312 STR 5L UPPER RADIUS OF FRAME;[02] ACCOMPLISHED HFEC SURFACE SCAN IAW 737 NDTM PART 6 CHAPTER 51-00-00 PROCEDURE 23. CRACK CONFIRMED; MEASURED AT L: 0.2' MARKED.<BR><BR>EQUIPMENT USED: NORTEC 600 ID: ATS1465 CAL DUE: 09/2023;[03] UPDATED MEASUREMENT TABLE;[04] REPAIRED CRACK BS 312 STR 5L ON M-22-153-01244; TTG8Q00N56CS;[05] VERIFIED COMPLETION OF CORRECTIVE ACTIONS 4 AND MEASUREMENT TABLE.

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