Service difficulty report · Rmu · Cessna 560CESSNA

Difficulty date
December 14, 2013
Submitted
September 14, 2015
Operation
General aviation
Make and model
Cessna 560CESSNA
Aircraft time
2,597 hours
Engine
Pwa PW535A
Part
Rmu
Part number
7013270963
Condition
Frozen
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

(CAN) RMU SCREEN FREEZES THEN GOES BLANK. THESE PARTS WERE A PRODUCT IMPROVEMENT INSTALLED. THERE HAVE BEEN 2 FAILURES OF THE NEW PARTS AND BOTH HAVE HAD INTERMITTENT PREVIOUS FAILURES PRIOR TO FINALLY FAILING AND BEING REPLACED. THIS UNIT WAS INSTALLED. THE SB WAS INCORPORATED DURING AN AVIONICS REFIT IN FEBRUARY 2013. TOTAL TIME IS LESS THAN 800 HOURS.