Sudden drop in quality

Does anyone know what may precipitate a sudden drop in quality? I have a country controlled Air Force MU and the quality dropped from 283 to 233 within a single month. All automatic systems are in place and haven't been changed. Employment situation good, welfare index high.

I have a dream...a dream that one day People, no matter if premium or free sit together in the Forum and live out the true meaning of its creed: 'If you want help post Country Name and World'
I habe a dream today!

OK, that was pretty funny. Sorry Queen, it's MittensLost on White Giant. Airforce MU 3.

lol borg..... make sure your corp is buying the same quality of suplpies and your quality upgrades havnt gone down