← Back to Aviation Glossary
Cabin Pressure Altitude
The pressure altitude inside the aircraft cabin — the altitude the occupants physiologically experience. Under 14 CFR 91.211, supplemental oxygen requirements are based on cabin pressure altitude, which in an unpressurized airplane is generally close to the airplane's pressure altitude.
Related Terms
- CFI (Certified Flight Instructor)A pilot who holds an FAA Flight Instructor certificate and is authorized to provide flight training. CFIs must hold at least a Commercial Pilot License and demonstrate teaching proficiency through written and practical examinations.
- CFII (Certified Flight Instructor — Instrument)A flight instructor who holds an instrument instructor rating, authorizing them to provide instrument flight training. A CFII can sign off students for the Instrument Rating Knowledge Test and recommend them for the instrument checkride.
- Chart SupplementAn FAA publication (formerly the Airport/Facility Directory) with detailed airport data including frequencies, runway information, services, and remarks. Pilots use the Chart Supplement with sectional charts and EFBs during VFR flight planning.
- CheckrideThe practical test administered by a Designated Pilot Examiner (DPE) to evaluate a pilot applicant's knowledge and flying skills. It consists of an oral examination and a flight test, both evaluated against the Airman Certification Standards.