Service difficulty report · Limit Switch · Cessna 560XL

Difficulty date
November 12, 2017
Submitted
November 15, 2017
Operation
Air carrier
Aircraft
N611QS
Make and model
Cessna 560XL
Aircraft serial
5605548
Aircraft time
11,401 hours, 8,954 cycles
Engine
Pwc PW545B
Engine time
11,401 hours, 8,954 cycles
Part
Limit Switch
Part number
53ND783045
Condition
Unserviceable
Location
Display
Stage of operation
TO
How discovered
O
Nature of condition
R, J
Precautionary procedure
C

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

What was found

DURING TAKE OFF WITH BOTH ENGINES IN THE TAKEOFF DETENT, THE RIGHT ENGINE ONLY PRODUCED 82 PERCENT N1. THE CORRECT NUMBER FOR TEMPERATURE AND ALTITUDE SHOULD HAVE BEEN 88.3 PERCENT N1. RESOLUTION: REMOVED DEFECTIVE RH T/R INBOARD DEPLOY SWITCH DUE TO HIGH RESISTANCE. INSTALLED NEW RT T/R INBOARD DEPLOY SWITCH IAW CMM 78-30-11. PERFORMED RH ENGINE MEETS POWER OF THE DAY IN TAKE-OFF DETENT.

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