mishap vs ground loop

mishap and ground loop both are nouns.

Word	Noun	Adjective	Verb	Adverb
mishap	Yes	No	No	No
ground loop	Yes	No	No	No

As nouns, ground loop is a hyponym of mishap; that is, ground loop is a word with a more specific, narrower meaning than mishap:

mishap: an instance of misfortune
ground loop: a sharp uncontrollable turn made by an airplane while moving along the ground

Other hyponyms of mishap include accident, near miss, derailment, puncture, slip, trip, crash.

mishap (noun)	ground loop (noun)
an instance of misfortune	a sharp uncontrollable turn made by an airplane while moving along the ground
an unpredictable outcome that is unfortunate