Service difficulty report · Frame · Boeing 7377H4

Difficulty date
December 22, 2023
Submitted
January 16, 2024
Operation
Air carrier
Aircraft
N455WN
Make and model
Boeing 7377H4
Aircraft serial
32462
Aircraft time
64,648 hours, 38,599 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

LH NUMBER ONE FLIGHT DECK WINDOW AFT FRAME; CRACK DETECTED AT THE UPPER IB FASTENER HOLE; MARKED. (ENGINEERING DISPOSITION REQUIRED)<[01] NDT HFEC INSPECTED THE CRACKED HOLE IAW 737 NDTM PART 6 51-00-00 PROC 16. MARKED THE DIRECTION OF THE CRACK; GOES IB APPROXIMATELY <BR>8 O'CLOCK FROM THE HOLE.<BR>EQUIP USED: NORTEC 600 IS0000680 DUE 05/24 MINI MITE ID: C018727 DUE 07/24;[02] REMOVED DAMAGED ON L/H NUMBER ONE FLIGHT DECK WINDOW AFT FRAME; OVERSIZED HOLE FROM 0.187 UP TO 0.375 I.A.W SRM 51-10-02-0G-0. NDT VERIFIED CRACK FREE ON STEP 2;[03] CARD COMPLETE; SEE TTG8Q00QDNS0 FOR FRAME REPAIR.;[04] VERIFIED MEASUREMENT TABLE

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