Skyhawk 172/Cutlass 172
Flight Crew Flight Instructor; Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 75; Flight Crew Total 2525; Flight Crew Type 2100
Situational Awareness
Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
[Aircraft] was in a hold at 3;000 feet after leaving the GPS 18 missed approach at Airport ZZZ; the pilot noticed aircraft approaching from the north east descending on an approximate heading of 220. Separation 100 feet [vertically] at first sighting and time of 10 seconds or less. Descended to 2900 feet as [other aircraft] passed over top and in front of aircraft.
A flight instructor in a C172 reports taking evasive action following a near-mid-air-collision while in a practice holding pattern.