One appliance and crew from High Wycombe and one from Maidenhead attended, along with an officer.
A small plane had made an emergency landing in fields between Sheepridge Lane and Coldmoorholme Lane, Little Marlow.
One man and one woman were out of the plane, uninjured, before they arrived.
The services of the firefighters were not required.
One appliance and crew from Bicester (on standby in Aylesbury), one from Amersham and an officer attended. Two men were out of the gyrocopter, which was on its side, when they arrived.
Firefighters used a medical kit to treat both men for minor cuts, and isolated the gyrocopter’s fuel system.
A number of other appliances and officers were initially mobilised but stood down before they arrived.
Two appliances and crews from High Wycombe, one from Beaconsfield, Wycombe Air Park’s fire crew and an officer attended.
A two-seater, propeller-driven light aircraft came down in a field north of Wycombe Air Park.
The pilot was left in the care of the ambulance service and is not believed to have been injured.
Firefighters used foam to deal with a spill of about 100 litres of fuel.
Two appliances and crews from Aylesbury, one from Bicester and an officer attended. The plane, which had been seen flying low over Grendon Underwood, made a precautionary landing in a field. There were no injuries to the pilot or co-pilot, and the plane was not damaged.
A number of other appliances and crews were initially mobilised, but turned back once it had been established that the incident had ended safely.