Why can't i listen to aircraft pilots & tower on my Uniden bearcat BC60XLT-1? Our airband frequency here is 108-137 mhz.

Aircraft is 108 to 136mhz Be sure to set AM, aircraft are on AM modulation.
Hope this helps.

Your scanner does not receive frequencies between 54 and 137 MHz, and there's nothing you can do to enable reception in that block. Your only option is to purchase a scanner with air band coverage. Here are the reception ranges of the BC-60XLT-1:

29.0-29.7 MHz 10 Meter Amateur Band
29.7-50 MHz VHF Low Band
50-54 MHz 6 Meter Amateur Band
137-144 MHz Military Land Mobile
144-148 MHz 2 Meter Amateur Band
148-174 MHz VHF High Band
Above bands in 5 kHz steps
406-420 MHz Federal Government
420-450 MHz 70 cm Amateur Band
450-470 MHz UHF Standard Band
470-512 MHz UHF "T" Band
Above bands in 12.5 kHz steps

Need the manual for your scanner? You can download and print it, at no cost, here:
http://www.uniden.com/pdf/BC60XLT-1om.pdf

Bill B.
Listening in since the 60's