Like Rog said, there is nothing wrong with flying 72 MHz and receivers are inexpensive for them. All my radio's I have or on 72 MHz (7 of them) except for my DX6 park flyer radio and receivers for that are only $50.00. But the limiting factor there is it’s a park flyer radio with a limited range. All my 72 MHz radios are full range.

I've been finding with many pilots shifting to the 2.4 radios the 72 MHz slots as opening up and I can basically fly as much as I want to with no real issues having to share a frequency. I've had to share on frequency only 3 times this year - once with my own radio and two times with a student's radio, and this is at a field with 187 registered flyers.

Depending on the severity of the crash, you may or may not need to send the receiver in for repair. A proper range test will be able to let you know a bit on how it’s working. But in the end it will be your decision on sending it in or not. Considering the price of 72 MHz receivers and crystals today you may just want to consider replacing it and the crystal if in doubt.

Hogflyer