Service difficulty report · Skin · Boeing 7377H4

Difficulty date
December 28, 2021
Submitted
February 4, 2022
Operation
Air carrier
Aircraft
N452WN
Make and model
Boeing 7377H4
Aircraft serial
29846
Aircraft time
60,081 hours, 35,724 cycles
Part
Skin
Condition
Cracked
Location
Horizontal Stab
Stage of operation
UK
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

TWO CRACKS FOUND AT LT HORIZONTAL STABILIZER LOWER SKIN STAB STA193.90:(1) 16' AFT OF FWD EDGE;I/B OF I/B FASTENER ROW.CRACK LENGTH1'(2) 24'AFT OF FWD EDGE I/B OF I/B FASTENER ROW.CRACK LENGTH 1.7' ; TWO CRACKS FOND AT LT HORIZONTAL STAILIZER LOWER SKIN STAB STA193.90:(1) 16' AFT OF FWD EDGE;IB OF IB FASTENER ROW.CRACK LENGTH1'(2) 24'AFT OF FWD EDGE IB OF IB FASTENER ROW.CRACK LENGTH 1.7' / [01] CRACKS AT LOWER SKIN AT LEFT HORIZONTAL STABILIZER BETWEEN STA 184 AND STA 193 MOST FORWARD CRACK MEASURES 1' LONG AND SECOND MOST AFT CRACK MEASURES 1.200'FOR ENGINEERING SUPPORT; [02] COMPLETED ALL STEPS.

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