activate (v)  START, OPERATE, CONNECT  START THE APU.  Activate the APU.
       THE LEVERS OPERATE THE MICROSWITCHES.  Microswitches are activated by levers.
       MAKE SURE THE CIRCUIT IS CONNECTED.  Make sure the circuit is activated.
 active (adj)  ON  WHEN THE SYSTEM IS ON, YOU WILL GET A REPORT.  When the system is active, you will get a report.
 activity (n)  WORK  THIS WORK IS APPLICABLE ONLY TO AIRCRAFT XXXX.  This activity is only relevant to aircraft XXXX.
 actuate (v)  START, OPERATE  START THE MOTOR.  Actuate the motor.
       OPERATE THE HANDPUMP.  Actuate the handpump.
 actuation (n)  OPERATION  MONITOR THE OPERATION OF THE STEERING MOTOR.  Monitor the actuation of the steering motor.
 ADAPT (v),
 ADAPTS, ADAPTED, ADAPTED  To change or adjust to that which is necessary  ADAPT THE PRESSURE CONNECTION TO THE PITOT HEAD.  
ADD (v),
 ADDS, ADDED, ADDED  To increase the number, dimension, or quantity  ADD 5 MILLILITERS OF HARDENER TO THE COMPOUND.  
 addition (n)  ADD (v)  ADD SPECIAL SHIMS AS NECESSARY TO GET THE CORRECT CLEARANCE OF 1.5 mm.  Adjust the clearance to 1.5 mm by the addition as necessary of special shims.
 additional (adj)  MORE  TO MAKE THE AIRCRAFT MORE STABLE, IT MUST BE IN THE HEAVIEST CONFIGURATION OF EQUIPMENT.  To provide additional stability, the aircraft should be equipped to the heaviest configuration.

 
 
 adequate (adj)  SUFFICIENT  SUPPLY CONTAINERS OF SUFFICIENT CAPACITY AND DIAMETER.  Provide containers of adequate capacity and diameter.
 adhere (v)  BOND, OBEY  THE SEAL MUST BOND FULLY.  Seal must adhere completely.
       OBEY THE SAFETY INSTRUCTIONS.  Adhere to the safety instructions.
 adhesion (n)  BOND  CLEAN THE SURFACE TO MAKE SURE THE BOND IS SATISFACTORY.  Clean the surface to ensure there will be good adhesion.
 ADJACENT (adj)  That which is near  MAKE SURE YOU DO NOT OPERATE THE ADJACENT CONTROL.  
 ADJACENT TO (pre)  To be near  THE FUEL PUMP IS INSTALLED ADJACENT TO THE BULKHEAD.  
 adjoining (adj)  ADJACENT  IT IS ALSO IMPORTANT THAT YOU ALIGN THE XXXX WITH THE ADJACENT COMPONENTS.  Alignment with adjoining members is also important.
ADJUST (v), ADJUSTS, ADJUSTED, ADJUSTED  To put to a specified position or "state"  ADJUST THE CONTROLS CAREFULLY.