Service difficulty report · Controller · Cessna 550

Difficulty date
June 16, 2003
Submitted
July 30, 2003
Operation
General aviation
Aircraft
N312NC
Make and model
Cessna 550
Aircraft serial
5500290
Engine
Pwa JT15D4
Part
Controller
Part number
13035616
Part serial
109400
Condition
Miswired
Location
Cabin Pressure
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

PX CONTROLLER REPLACED DUE TO INTERNAL FAILURE AFTER REPLACEMENT PILOT COMPLAINED ABOUT A 6000+ FOOT PER MINUTE CABIN CLIMB RATE AND THAT THE CONTROLLER BACK LIGHTING CAME ON WHEN THROTTLES WERE REDUCED BELOW 90 PERCENT. INSPECTION OF THE SYSTEM REVEALED THAT THE REPLACEMENT CONTROLLER WAS MISS-WIRED AT OVERHAUL. REPLACED THE CONTROLLER NO FURTHER PROBLEMS REPORTED. (SW05200308828)

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