Service difficulty report · Frame · Boeing 7377H4

Difficulty date
December 19, 2023
Submitted
February 6, 2024
Operation
Air carrier
Aircraft
N453WN
Make and model
Boeing 7377H4
Aircraft serial
29847
Aircraft time
64,260 hours, 38,169 cycles
Part
Frame
Part number
UNKNOWN
Condition
Cracked
Location
Bs 727 S18a
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

CRACK INDICATION FOUND DURING HFEC ROTO TEST AT THE BS 727 FRAME INNER CHORD AT S-18A ATTACHMENT LEFT SIDE LOWER FASTENER HOLE.<[01] COMPLETED SME INSPECTION OF WORKMANSHIP AND PAPERWORK AUDIT.;[02] COMPLETED SME INSPECTION OF WORKMANSHIP AND PAPERWORK AUDIT.;[03] ACCOMPLISHED AS PER EA 23-153-03746;[04] RII -- VERIFIED ACCOMPLISHED AS PER EA 23-153-03746.

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