Area of Operation I: Preflight Preparation

Area I · Preflight PreparationArea VIII · High-Altitude Operations (Commercial) ↓

A shared Private and Commercial Airplane ACS reading guide. FAA handbook PDF links open at the printed page where the selected section begins; AIM links target the relevant numbered paragraph.

Private pilotCommercial pilotApplies to bothReferences: PHAK · AFH · AWH · AIM · AC · eCFR

P / C colors identify ACS applicability, not whether every aircraft-specific item applies to every airplane. PHAK and AFH page links use each chapter’s PDF numbering (for example, PHAK 7-25 opens PDF page 25). The 2026 Aviation Weather Handbook is one PDF: its links name the relevant section and request a PDF text search; some viewers may ignore that request, so use the section name/bookmarks if needed. AIM links use official FAA HTML text highlighting when supported; otherwise the correct AIM section opens. Selected references are study aids, not an official item-by-item FAA crosswalk. Verify current regulations, handbook addenda, the aircraft POH/AFM and applicable limitations.

Task A: Pilot Qualifications

ACS Knowledge Item Resources & Links
P+C • Certification requirements, recent flight experience, and recordkeeping.
P • Private pilot privileges and limitations.
C• Commercial pilot privileges and limitations.
P+C • Medical certificates: class, expiration, privileges, temporary disqualifications.
P• Documents required to exercise private pilot privileges.
C • Documents required to exercise commercial pilot privileges.
P+C • Part 68 BasicMed privileges and limitations.
Risk Management & Skills Summary

Risks: Proficiency vs. currency; flying unfamiliar aircraft or avionics.
Skills: Apply requirements to act as PIC under VFR in a given scenario.

Task B: Airworthiness Requirements

ACS Knowledge Item Resources & Links
P+C • Location and expiration dates of required aircraft certificates.
P+C • Required inspections and airplane logbook documentation.
P+C • Airworthiness Directives (ADs) and Special Airworthiness Information Bulletins (SAIBs).
P+C • Purpose and procedure for obtaining a special flight permit.
P+C• Owner/operator and pilot-in-command airworthiness responsibilities.
P+C • Pilot-performed preventive maintenance.
P+C • Equipment requirements for day and night VFR flight, including inoperative equipment, MELs, KOELs, and placards.
P+C • Special airworthiness certificate aircraft operating limitations, if applicable.
Risk Management & Skills Summary

Risks: Inoperative equipment discovered prior to flight.
Skills: Determine airworthiness and apply procedures for inoperative equipment.

Task C: Weather Information

AWH 2026 reading links: “Read online” opens the relevant part of an independent HTML edition (not FAA-hosted); the accompanying “FAA PDF” link is the original FAA-H-8083-28B. Where a section is later in a paginated chapter, the printed PDF page or section number is supplied instead of an unreliable PDF search jump.

ACS Knowledge Item Resources & Links
P+C • Sources of weather data (National Weather Service, Flight Service).
P+C • Airport Observations (METAR and SPECI) and Pilot Observations (PIREPs).
P+C • Surface Analysis Chart, Ceiling and Visibility Chart (CVA).
P+C • Terminal Aerodrome Forecasts (TAF).
P+C • Graphical Forecasts for Aviation (GFA).
P+C • Wind and Temperature Aloft Forecast (FB).
P+C • Convective Outlook (AC).
P+C • Inflight Aviation Weather Advisories (AIRMETs, SIGMETs, Convective SIGMETs).
P+C • Meteorology: atmospheric composition/stability, windshear, temperature exchange, moisture, fronts, clouds, turbulence, thunderstorms, icing, fog, frost, and visibility obstructions.
P+C • Flight deck instrument displays of digital weather and aeronautical information.
Risk Management & Skills Summary

Risks: Go/no-go decisions, diversion circumstances, personal minimums, forecast turbulence/icing.
Skills: Obtain briefings, analyze conditions, and correlate weather for go/no-go decisions.

Task D: Cross-Country Flight Planning

ACS Knowledge Item Resources & Links
P+C • Route planning, classes/special use airspace (SUA), and navigation/communication system selection (including EFB).
P+C • Altitude selection accounting for terrain, obstacles, glide distance, VFR cruising altitudes, and wind.
P+C • Calculations: time, climb/descent rates, course, distance, heading, true airspeed, groundspeed, ETA/UTC, and fuel requirements/reserves.
P+C • Elements of a VFR flight plan, filing, activating, closing, and inflight intercept procedures.
Risk Management & Skills Summary

Risks: Pilot, aircraft, environment, external pressures, ATC service limits, fuel planning.
Skills: Prepare cross-country plan, navigation log, re-calculate fuel reserves, use EFB.

Task E: National Airspace System

ACS Knowledge Item Resources & Links
P+C • Airspace classes and associated requirements and limitations.
P+C • Chart symbols and visual flight rules minimums.
P+C • Special use airspace (SUA), SFRA, TFRs, and special VFR requirements.
Risk Management & Skills Summary

Risks: Operating across various classes and types of airspace.
Skills: Comply with VFR weather minimums, communication requirements, and SATR/SFRA rules.

Task F: Performance and Limitations

ACS Knowledge Item Resources & Links
P+C • Elements related to performance and limitations using charts, tables, and data.
P+C • Factors affecting performance: atmospheric conditions, pilot technique, configuration, airport environment, and loading/CG.
P+C • Aerodynamics underlying aircraft performance.
Risk Management & Skills Summary

Risks: Use of performance charts, aircraft limitations, and calculated vs. actual performance.
Skills: Compute weight and balance, correct CG errors, and use performance charts.

Task G: Operation of Systems

ACS Knowledge Item Resources & Links
P+C • Primary and secondary flight controls.
P+C • Powerplant, propeller, and landing gear systems.
P+C • Fuel, oil, hydraulic, electrical, and avionics systems.
P+C • Pitot-static, vacuum/pressure instruments, and environmental systems.
P+C • Deicing/anti-icing, water rudders (ASES/AMES), and oxygen systems.
P+C • Indications of and procedures for managing system abnormalities or failures.
Risk Management & Skills Summary

Risks: Detection, management of failures, and automated system monitoring.
Skills: Operate at least three specified systems appropriately and complete checklists.

Task H: Human Factors

ACS Knowledge Item Resources & Links
P+C • Aeromedical issues: hypoxia, hyperventilation, ear/sinus blocks, spatial disorientation, motion sickness, and carbon monoxide poisoning.
P+C • Stress, fatigue, dehydration, nutrition, hypothermia, optical illusions, and scuba diving nitrogen.
P+C • Regulations regarding alcohol and drug use, and their physiological effects.
P+C • Aeronautical Decision-Making (ADM), CRM, and Single-Pilot Resource Management (SRM).
Risk Management & Skills Summary

Risks: Physiological issues, hazardous attitudes, distractions, confirmation/expectation bias.
Skills: Associate symptoms/corrective actions for conditions and perform self-assessment.

Area of Operation VIII: High-Altitude Operations

Commercial pilot only · FAA-S-ACS-7B · specific FAA reading links by knowledge, risk-management, and skill element.

Handbook and advisory-circular PDFs use numbered PDF page links; page positioning is subject to browser PDF viewer support. AIM links open the official HTML section and attempt to highlight the relevant paragraph. References are study aids, not a replacement for current rules, the applicable POH/AFM, or the official ACS. Conditional ACS skills remain conditional where equipment is not installed.

Task A: Supplemental Oxygen

Knowledge, risk management, and skills for flight where supplemental oxygen is required or recommended.

ACSElement / reading assignmentResources & links
CCA.VIII.A.K1
Supplemental oxygen requirements for crew and passengers.
CCA.VIII.A.K2a–c
Physiological impairment, hypoxia symptoms, and time of useful consciousness (TUC).
CCA.VIII.A.K3a
Continuous-flow, demand/diluter-demand, and pressure-demand systems: characteristics and limitations.
CCA.VIII.A.K3b
Aviator’s breathing oxygen versus other oxygen types; proper identification.
CCA.VIII.A.K3c
Precautions while using supplemental oxygen: equipment checks, fit, flow and oxygen-related fire hazards.
CCA.VIII.A.R1–R2
Risk management: high-altitude flight, inadequate oxygen supply, and misuse or failure of oxygen equipment.
CCA.VIII.A.R3–R4
Risk management: compressed-gas cylinder handling and increased combustion risk in oxygen-rich environments.
CCA.VIII.A.S1
Calculate oxygen quantity required for an evaluator-provided flight scenario.
CCA.VIII.A.S2–S3
Operate or simulate installed/portable oxygen equipment when available, and brief passengers on its use.
CCA.VIII.A.S4
Apply SRM or CRM to oxygen-system use and high-altitude scenarios.

Task B: Pressurization

Knowledge, risk management, and skills for high-altitude flight in pressurized aircraft.

ACSElement / reading assignmentResources & links
CCA.VIII.B.K1
Fundamentals of cabin pressurization, cabin altitude, differential pressure, outflow valves, indications and failure modes.
CCA.VIII.B.K2a–c
Physiological impairment, hypoxia symptoms, and time of useful consciousness (TUC).
CCA.VIII.B.K2d
Effects of rapid decompression on crew and passengers.
CCA.VIII.B.R1–R2
Risk management: high-altitude operations and a pressurization malfunction, where the equipment is installed.
CCA.VIII.B.S1–S2
Operate the pressurization system and respond to simulated malfunctions, if installed.
CCA.VIII.B.S3
Brief passengers about supplemental oxygen following a pressurization failure, if installed.
CCA.VIII.B.S4
Use SRM or CRM to manage the scenario.

Additional commercial high-altitude reading

These references help connect the two tasks to real aircraft and training requirements:

Important distinction: This is the Commercial ACS study area. The separate high-altitude training and endorsement rule for serving as PIC of a pressurized aircraft with a service ceiling or maximum operating altitude above 25,000 feet MSL appears in § 61.31(g); it is not automatically satisfied by studying or passing this ACS task.

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