Service difficulty report · Frame · Boeing 7377H4

Difficulty date
April 16, 2020
Submitted
May 12, 2020
Operation
Air carrier
Aircraft
N473WN
Make and model
Boeing 7377H4
Aircraft serial
33832
Aircraft time
55,206 hours, 32,646 cycles
Part
Frame
Condition
Cracked
Location
Fuselage
Stage of operation
IN
How discovered
O
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 ON FRAME AROUND INBOARD FASTENER HOLE COMMON TO SUPORT BRACKET AT BS 747 BTW STR8L AND STR9L AT PASSENGER CABIN / PERFORMED PERMANENT REPAIR ON FRAME BS 747 BTW S-8L TO S-9L IAW EA #1-A53-12114 REV.4

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