Altimeter Annual Inspection Operating Limitations 
Pilot Institute
JULY 9, 2025
Operating Limitations (O) Operating limitations are another mandatory document. They define the approved and safe operational boundaries of your aircraft. Your aircraft’s operating limitations are there as a reference for the certified safety margins of your aircraft. Who should do this inspection?
Northstar VFR
SEPTEMBER 1, 2024
If the inspection hasn’t been performed and signed off by the proper maintenance technician within the required timeframe, the airplane isn’t allowed to fly. Before flying, a pilot must verify these inspections have been performed by looking in the maintenance logs.
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