Service difficulty report · Spar Cap · Cessna 402C

Difficulty date
January 21, 2020
Submitted
January 21, 2020
Operation
Air carrier
Aircraft
N258PB
Make and model
Cessna 402C
Aircraft serial
402C0336
Aircraft time
37,132 hours, 35,978 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Cap
Part number
52111781
Condition
Cracked
Part time
37,132 hours, 35,978 cycles
Stage of operation
IN
How discovered
U
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

A CRACK WAS IDENTIFIED AT THE RT SIDE OF THE LWR FWD CARRYTHROUGH SPAR CAP (AFT MOST IB FASTENER COMMON TO WING JOINT FITTING) WHILE PERFORMING NDT PROCEDURE AS AMOC FOR AD2018-03-03R1. THE CRACK WAS CONFIRMED WITH BOLT HOLE EDDY CURRENT PROCEDURE AFTER THE FASTENER WAS REMOVED. CRACK DIRECTION IS AFT AND MEASURES APPROXIMATELY 0.1875".

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