Service difficulty report · Spar Cap · Cessna 402C

Difficulty date
January 23, 2019
Submitted
January 23, 2019
Operation
Air carrier
Aircraft
N1361G
Make and model
Cessna 402C
Aircraft serial
C4020270
Aircraft time
34,576 hours, 32,264 cycles
System (JASC)
5711 · Wing Spar
Part
Spar Cap
Part number
51220316
Condition
Cracked
Location
Rt Wing
Part time
34,576 hours, 32,264 cycles
Stage of operation
IN
How discovered
V
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

DURING MAINTENANCE A CRACK WAS VISUALLY DISCOVERED ON THE RIGHT HAND FORWARD UPPER SPAR CAP P/N: 5122031-6. THIS CRACK HAS BEEN CONFIRMED BY SURFACE EDDY CURRENT INSPECTION AND IS LOCATED IN THE FORWARD RADIUS BETWEEN THE VERTICAL AND HORIZONTAL LEGS OF THE CAP. THE CRACK MEASURES .750 INCHES IN LENGTH AND IS LOCATED AT APPROXIMATE RIGHT HAND WING STATION 69.00.

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