As long as the higher wattage resistor fits physically and is the
appropriate resistance (82 ohms in this case), it will work just
fine... It will be just loafing at a small fraction of a watt and so
should never 'burn out from thermal stress.... Physically larger is
usually more mechanically robust, as Dave surmises...

Resistors start at 1/8 watt at most electronic suppliers and go up into
the hundreds of watts... The larger units will not be available in all
resistances, especially in the megohm range... For what you need it
in the airplane, a wirewound "flameproof" of 2 watts is fine...

denny