AOP-37 "Loss of Instrument Air"

Question 1

AOP-37 entry conditions

Answer 1

• EK-1101 “Containment Instrument Air LO Press” (85 psig)
• EK-1102 “Instrument Air LO Press” (85 psig)
• EK-1103 “Service Air LO Press” (80 psig)

Question 2

AOP-37 automatic actions

Answer 2

• Standby Instrument Air Compressor(s) starts at 92 psig

- CV-1212, Service Air Header Isol, closes at 85 psig in the Instrument Air Header

Question 3

AOP-37 reactor trip criteria

Answer 3

Erratic equipment operation observed on equipment required for safe plant operation (may occur when Instrument Air pressure approximately 50 psig)

Question 4

AOP-37 immediate actions

Answer 4

NONE