SDR REXA2012020900221

Service difficulty report · Shutoff Valve · Cndair CL6002B19

Difficulty date: February 9, 2012
Submitted: February 13, 2012
Operation: Air carrier
Aircraft: N8783E
Make and model: Cndair CL6002B19
Aircraft serial: 7783
Aircraft time: 20,041 hours, 17,552 cycles
System (JASC): 2150 · Cabin Cooling System
Part: Shutoff Valve
Condition: Malfunctioned
Location: Ac Bay
Stage of operation: CR
How discovered: O
Nature of condition: O
Precautionary procedure: A

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

What was found

AIR RETURN FOR AUTO PRESS CONTROL NOT HOLDING PSI, SWITCHED TO MANUAL, & COULD BARELY CONTROL PRESSURE. MANUAL RATE FULL INCREASE & MANUAL ALT IN DOWN POSITION VARIED BETWEEN 200-600FPM. REMOVED AND REPLACED PRSOV IAW AMM 21-51-43. PERFORMED OPS CHECK OF LT PACK IAW AMM 21-51-00. OPS CHECK GOOD. PERFORMED OPS CHECK OF CABIN PRESSURE IAW 21-31-00. OPS CHECK GOOD. OK FOR SERVICE. VERIFIED PART EFFECTIVITY.