We Help You Pass Our free online study guide really works. You can study for your FAA private pilot ground school exam right now. For more info about the 4VFR.COM project, click here. You can find a daily update log here. Live ATC Audio Streams Tune into live air traffic control frequencies from North America. This feature requires Real player. Start listening to ATC now! Reference Library Our glossary lists and databases have grown quickly. I am working to create an on-line reference library to tie together all the loose ends. You can check out what is currently available in the library FAA Practice Exam - New! Introducing our newly enhanced practice exam. Now with figures!. Take a test a day for a week, and I guarantee you will do better on your exam. Get Started Now! Show your support for 4VFR.COM - Link us. Bookmark us. Tell your mother about us. Press CTRL-D to bookmark this site now!. Check out one of our proposed T-Shirt Designs. Feature Article: Airworthiness Directive (AD)Compliance Record Aircraft No: Make: Serial Number Aircraft Model:_______________________________________________________________ AD # Date Subject Compliance Method of Date of Airframe Component One-time Recurring Next Authorized and Received Due Compliance Compliance Total Time Total time in Compliance Signature Amend Date/Hours Service at Service at Date/Hours Certificate Number Other Other Type & # Aircraft Record keeping Requirements of Part 91 Regulation Required Required Recordation Retention Records Entry Location Requirement 91.411 Altimeter and Encoder Date and maximum altitude Maintenance Log 24 months Signature, # Permanent 91.413 Transponder tests Test, date, signature # Maintenance log 24 months Permanent 91.417(a)(i ) Preventive, alternations Work performed, date completed Maintenance log Until repeated, 91.417(b)(i) 100 hr, annuals, required, Signature, certificate # of person Component log suspended, or approved inspections returning aircraft to service for one year 91.417(a)(i) Total time in service Identification /serial number Maintenance log Indefinite 91.417(b)(i) airframe, engines, Total time since new/overhauled Component log propeller . 91.417(a)(2)(ii) Status of life-limited parts Identification /serial number Maintenance log Indefinite 91.417(b)(2) airframe, engine, propeller, Total time since new/overhauled Permanent record or appliance iii Time since last overhaul Identification/serial number Maintenance log Indefinite as required on time basis Total time of service since Permanent record ________________ last overhaul . iv Inspection status, time Type/time of last inspection Maintenance log Indefinite since last defects found, items deferred Permanent record v Status of ADs, time/ date DA number, revision date, Maintenance log Indefinite when next required date of compliance, method AD Compliance record and time/date of next action Permanent record Signature/ Certificate # . vi Form copies prescribed by Specified on Form 337 Form 337 attached Indefinite FAR 43.9(a) for major alternation Last Modified December 14, ©2025 TAGE.COM Related Links Featured Articles Midair Accidents In 10 Years 1983-94 Mountain Accidents Commitment to Flying The Second Solo Power-on Stalls Lost Procedures Smoking Why We Sit On The Left More on Mid-Airs Post-Landing FAA Instructional Format Windsock Airport Advice to instructors Opinion On Trim More Flight Training Articles... Student Kudos "this site utterly rocks. i am going to make it the default homepage of every machine i use at work and at home. i listen to atc all day long and take practice exams -- i have no doubt that, when it comes time to start the ppl testing process, i will acheive better results as a result of having found this amazing site. good work and keep it up!!!! " - jason wagner