Y. J. Foo 0 Report post Posted August 17, 2005 We always come across with such term when we are discussing about the planes' maintenance, but I only know what is D-check is-all fittings will be stripped for detailed inspections IIRC but that's all I know. What are the other classes of checks? And how long and frequent will those checks take? Share this post Link to post Share on other sites
Mohd. Ariffin Bin Jamalludin 0 Report post Posted August 18, 2005 the things down here are based on what i've learned. A check - every 200 hours or 20-25 days B check - every 550 hours or 40-45 days C check - every 12-15 months D check - every 4-5 years if i'm wrong, i hope any aviation expertise or LAME will do correction.thanx Share this post Link to post Share on other sites