PLT373: Operating Limitations
What code PLT373 covers, why the FAA tests it, and how to study Operating Limitations before your checkride.
Recall regulations - aircraft operating limitations
What this means for your checkride
A pilot must operate the airplane within its approved operating limitations, found in the POH or AFM, on placards and markings, and on the instrument range markings. These limits, airspeeds, weights, CG, approved maneuvers, and equipment, are part of the airworthiness certificate's terms; exceeding them makes the airplane unairworthy.
The limitations define legal and safe operation, so the FAA tests where they are found and the duty to comply.
Pilots treat placards and markings as advisory. They are regulatory operating limitations; ignoring a redline or a placard is operating outside the airworthiness certificate.
Where to study it
A code on your test report is an area of deficiency. An authorized instructor must review it with you and endorse that review before you take the practical test, and the examiner may revisit it during the oral. Study it until you can explain it out loud, not just recognize the answer.