B737 Hydraulic LOW PRESSURE light
Hi folks
one question about the low pressure light for the hydraulic system of the 737ng.
from the QRH: Hydraulic Pump Switch - OFF
A hydraulic pump LOW PRESSURE light illuminated indicates related hydraulic pump output pressure is low.
Intermittent illumination of the hydraulic pump LOW PRESSURE light may be the result of single electric pump operation and a high demand on the hydraulic system.
What does that last statement mean? That if the light comes on the EDP is less than normal but more than 1300psi? The single bit throws me off.
Thanks for any input