checklist - ERAU ETA - Embry-Riddle Aeronautical University
checklist - ERAU ETA - Embry-Riddle Aeronautical University
checklist - ERAU ETA - Embry-Riddle Aeronautical University
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PA-28R-201 SOP 131<br />
VAC OFF OR LOW VAC WARNING ILLUMINATED<br />
CHECKLIST<br />
1. AUX VACUUM SWITCH .................................................................. ON<br />
2. SYSTEM SUCTION ......................................... VERIFY (4.8-5.2 in. Hg)<br />
3. ELECTRICAL LOAD ............................................................. MONITOR<br />
4. AIRPORT .................................................... LAND WHEN PRACTICAL<br />
5. VAC OFF OR LOW VAC WARNING ILLUMINATED CHECKLIST .........<br />
.................................................................................................. COMPLETE<br />
1. AUX VAC SWITCH ON<br />
Push the Auxilary Vacuum Switch to AUX ON. Verify the VAC OFF<br />
annunciator is extinguished and the AUX ON annunciator is illuminated.<br />
2. SYSTEM SUCTION VERIFY (4.8-5.2 in. Hg)<br />
Verify the suction gauge is showing between 4.8 and 5.2 inches of Mecury.<br />
CAUTION<br />
Compass error may exceed 10° when auxiliary vacuum system<br />
is in operation.<br />
3. ELECTRICAL LOAD MONITOR<br />
Verify that alternator capacity is not being exceeded as indicated by the<br />
ammeter. If required, turn off nonessential electrical equipment.<br />
4. AIRPORT LAND<br />
Land when practical at an airport where repairs can be made.<br />
5. VAC OFF OR LOW VAC WARNING ILLUMINATED CHECKLIST<br />
COMPLETE<br />
Upon completion of the VAC OFF OR LOW VAC WARNING<br />
ILLUMINATED CHECKLIST , verify that all items have been accomplished<br />
and that the <strong>checklist</strong> is COMPLETE.<br />
Rev 06 © <strong>Embry</strong>-<strong>Riddle</strong> <strong>Aeronautical</strong> <strong>University</strong> Revised 07-01-2012
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