FEATHER (v), FEATHERS, FEATHERED, FEATHERED  To put a propeller (TN) to a position of minimum drag (TN)  PUT THE CONDITION LEVER IN THE "FTR" POSITION TO FEATHER THE PROPELLER.  
 feature (v)  HAVE  THESE NUTS HAVE A FLAT FLANGE.  These nuts feature a plain flange.
 feed (v)  PUT, SUPPLY  PUT THE WIRE THROUGH THE CONDUIT.  Feed the wire through the conduit.
       SUPPLY COOL AIR TO THE CABIN.  Feed cool air to the cabin.
 FEEL (v),
 FEELS, FELT, FELT  To touch to find  YOU CAN FEEL THE CLICK IN THE HANDLE WHEN THE TORQUE WRENCH BREAKS.  
 FERRY (v),
 FERRIES, FERRIED, FERRIED  To send an aircraft or engine to a different location by a "non-revenue" flight  IT IS NECESSARY TO FERRY THE ENGINE BACK TO THE MANUFACTURER.  
 few (adj)  SOME 
 NOTE : If this alternative is not sufficient, give the range, number, or quantity.  SOME BOLTS ARE SHORTER THAN THE OTHERS.  A few bolts are shorter than the others.
      AFTER APPROXIMATELY 5 SECONDS, THE LIGHT COMES ON AGAIN.  After a few seconds, the light comes on again.
 file (v)  REMOVE  DO NOT REMOVE TOO MUCH MATERIAL WITH THE FILE.  Take care not to file too deep.
 filing (n)  PARTICLE  REMOVE ALL THE METAL PARTICLES.  Remove all the metal filings.
 FILL (v),
 FILLS, FILLED, FILLED  To put into a container to a known level, pressure, or quantity  FILL THE TANK WITH METHANOL.  
 film (n)  LAYER  APPLY A LAYER OF THE COMPOUND ON THE SURFACE OF THE wing.  Spread a film of compound on the surface of the wing.

 
 
 filter (v)  FILTER (TN)  PUT THE OIL THROUGH A FILTER.  Filter the oil.
 FILTERED (adj)  That "has gone" through a filter (TN)  DRY WITH LOW-PRESSURE FILTERED AIR.