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Caution:  During ground operation at temperatures below 6°C (42°F) and simultaneous high moisture conditions (rain, sleet, snow or fog), run each engine to as high a thrust as practical (70% N1 for a minimum of 15 seconds is desired, however, an alternate thrust setting of 60% N1 for a minimum of 40 seconds is acceptable) every 10 minutes.  Prior to takeoff under these conditions, perform an engine run-up as above and observe that EPR, RPM, and EGT indicate normal engine operation.
When icing conditions exist, engine anti-ice will be used for ground operation as well as takeoff.  Always check N1 for a minimum of approximately 90% RPM to assure takeoff power is set.  The TRI will automatically adjust the EPR for ice protection.  The value displayed on the TRI should be used for all power settings.
Fuel heat will be used by momentary actuation of the L and R FUEL HEAT switches if the indicated fuel temperature is 0°C (32°F) or below. Repeat as necessary.  Both fuel heat switches and indicating lights must be Off/Out prior to takeoff.
Packs & Air Cond Shutoff Sw .......... ..............................................AUTO

Individually move each air conditioning supply switch to AUTO checking the respective AC load meter for an indication of ground blower operation.
If right Engine Restart: only check of right system is necessary.
Note:  If the ambient temperature is high, it may be desirable to taxi with the APU supplying one air conditioning system.  The left X-Feed valve should be open and the right X-Feed valve closed. This will lessen the need to advance throttles for increased engine bleed air, and reduce brake usage to control taxi speed. When the APU is supplying only bleed air (APU gen off), it can deliver appreciably more air than an idling engine.
Place the air conditioning shutoff switch to AUTO. This will arm the air conditioning circuit so that if an engine failure during takeoff is sensed by the differential pressure switch, both air conditioning packs will be turned off.
Door Lights..............................................................................................OUT

All fuselage doors must be closed prior to powerback and/or taxi. Momentarily press ANNUN/DIGITAL LTS test button to assure door lights work.
Hydraulics .......................................... ..................... ON & HI, CHECKED

The operation of the engine driven hydraulic pumps should be checked. Check that the hydraulic quantities are at the same level as when the receiving aircraft hydraulic check was performed.  Check both hydraulic pressure indicators are in the 3000 PSI green arc.  Verify that the left and right HYD PRESS LOW lights and the left and right HYD TEMP HI lights are out. Turn off aux and transfer pump switches and confirm left and right pressure remains at 3000 PSI.  Move both engine driven pumps to low and then back to high noting a momentary drop in pressure and a return to 3000 PSI.  Return the aux and transfer switches to on.
If right Engine Restart: only check of right engine pump is necessary.
Temporary Revision 
MD-80  Sec. 4 Page 68 
Flight Manual  Continental  TR 02-01  01/22/02 

Cockpit Door, Sterile Light...................................................LOCKED, ON

Verify the flight deck door is closed and locked and secondary mechanical lock is engaged.  Pull the door to the closed position and rotate the LOCK-UNLOCK knob to the LOCK position. Lower the safety bar to the latch position and insert locking pin into clevis as shown in the SAFETY BAR OPERATION placard. Make sure the guide pin engages the clip. This is normally accomplished before engine start, but must be completed prior to aircraft movement under its own power.
The sterile cockpit environment exists while the aircraft is moving under its own power and continues until the aircraft has climbed through 10,000 feet. During that time, activities in the flight deck not required for the safe operation of the aircraft are prohibited. (These include logbook entries, PAs, non-essential conversation, etc.)  If the light is not installed or inoperative, one chime may be used to signal the end of the sterile period to the flight attendants. Increased traffic vigilance should be maintained through 18,000 feet.
.  Engine Restart Items: these must be accomplished after restarting the right engine following single engine taxi.
SINGLE ENGINE TAXI
Note: Single engine taxi is not authorized:
.  
During conditions of reduced traction for taxi such as standing water, slush, snow, or ice on the field.

.  
When engine anti-ice is required for takeoff.

.  
At high gross weights which would require excessive thrust from

one engine for taxi. Normally both engines will be started prior to taxi.  If necessary to maintain MIN FUEL for departure, the right engine may be shut down during taxi.
　
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