stumbled over a bug in FlightAirMap: Gigabytes of Excessive Log-Writes to SD-Card · Issue #366 · Ysurac/FlightAirMap · GitHub this could lead to excessive writes to sd-card - so please update:
sudo nano /etc/systemd/system/flightairmap.service
replace the existing content with the following lines (maybe you have to alter the path ‘/var/www/html/flightairmap/scripts/daemon-spotter.php’ to match your setup)
[Unit]
Description=FlightAirMap
Requires=mysql.service
After=mysql.service
[Service]
ExecStart=/var/www/html/flightairmap/scripts/daemon-spotter.php
Restart=always
RestartSec=10
StandardOutput=null
StandardError=null
[Install]
WantedBy=multi-user.target
save the altered flightairmap.service file and restart the pi => done 