Service difficulty report · Relay · Cessna 525B

Difficulty date
June 4, 2011
Submitted
June 8, 2011
Operation
General aviation
Aircraft
N949L
Make and model
Cessna 525B
Aircraft serial
0306
Aircraft time
716 hours, 521 cycles
Part
Relay
Part number
M610619012
Condition
Stuck
Location
A/C Pack
Part time
71 hours
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THE AIR CONDITIONER CONDENSOR MOTOR WOULD NOT TURN OFF WHEN THE SWITCH WAS TURNED OFF. THE MOTOR CONTINUED TO RUN UNTIL THE ACFT MASTER SWITCH WAS TURNED OFF. TROUBLESHOOTING REVEALED RELAY KZ052 WAS STUCK SHUT. A NEW RELAY WAS INSTALLED AND A SATISFACTORY OPS CHECK WAS PERFORMED.

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