An aircraft's vacuum system fails without warning. Suddenly, the gyro instruments critical for IFR stop working. Unless atmospheric conditions are crystal clear, the pilot is flying blind.
The SVS V Standby Vacuum System operates on the differential between manifold pressure and ambient pressure. When activated, the SVS V restores flight instruments to their full capability. The Early Warning alerts the pilot to vacuum failure before gyro instruments are affected. That leaves plenty of time to take corrective action.
The pilot activates the SVS V cable control which opens a bypass valve into the engine intake manifold, then adjusts the power setting by watching the instrument suction gauge along with the settings placard on the panel. This allows vacuum to restore so the crew can find a place to land and replace the primary vacuum source.
Yes, we have added the STC documents to the web page in the 'Documents' tab.