AMTStandards.orgAviation maintenance

Quick reference

Terms on this page 5

Dotted in the text; open one for its entry, or see the glossary.

Readings in the sources

5 short readings for AF-G, a topic at a time: what the test asks, and the sections that cover it. Sign in to tick them off as you read.

  • FAA-H-8083-31B Aviation Maintenance Technician Handbook — Airframe

  1. Pressurization and cabin pressurization systems K1, K8, S14, S15

    • FAA-H-8083-31B Ch. 16: Aircraft Pressurization Systems · Pressurization Modes · Pressurization Operation · Pressurization Terms · Pressurization Gauges · Cabin Pressurization Troubleshooting

  2. Bleed air heating K2, K4, K5, S8, S10, S13

    For the test: Bleed air heating; exhaust heat exchangers; combustion heaters

    • FAA-H-8083-31B Ch. 16: Aircraft Heaters · Combustion Heaters · Exhaust Shroud Heaters · Bleed Air Systems · Electric Heating Systems

  3. Instrument cooling; vapor-cycle; air-cycle K3, K6, K7, S9, S11, S12

    • FAA-H-8083-31B Ch. 16: Vapor Cycle Air Conditioning

  4. Oxygen system types, components, maintenance and inspection K9, K10, S1–S7

    • FAA-H-8083-31B Ch. 16: Aircraft Oxygen Systems · Oxygen Systems & Components · Gaseous Oxygen Systems · Chemical Oxygen Systems · Liquid Oxygen · Oxygen System Servicing · Servicing Gaseous Oxygen · Prevention of Oxygen Fires or Explosions

  5. Oxygen maintenance R1, R3, R4

    For the test: Oxygen maintenance; chemical oxygen generators; compressed gas cylinders

    • FAA-H-8083-31B Ch. 16: Chemical or Solid Oxygen

Source: FAA-H-8083-31B, cabin environmental control systems chapter. Public domain. Pointers only.

Chapter and section verified against FAA-H-8083-31B, 2023 edition, on 28 August 2026. Page numbers are deliberately not cited: they move between printings, and a citation that rots silently is worse than a coarser one that stays true. Checked by our handbook citation check against our index of the handbook's chapters and sections.

Elements The ACS asks for Where in FAA-H-8083-31B Read it for
K1, K8, S14, S15 Pressurization and cabin pressurization systems Ch. 16 — Aircraft Pressurization Systems; Pressurization Modes; Pressurization Operation; Pressurization Terms; Pressurization Gauges; Cabin Pressurization Troubleshooting The outflow valve is the controlling element. AF-G Concepts §4
K2, K4, K5, S8, S10, S13 Bleed air heating; exhaust heat exchangers; combustion heaters Ch. 16 — Aircraft Heaters; Combustion Heaters; Exhaust Shroud Heaters; Bleed Air Systems; Electric Heating Systems AF-G Concepts §3 — the carbon monoxide path
K3, K6, K7, S9, S11, S12 Instrument cooling; vapor-cycle; air-cycle Ch. 16 — Vapor Cycle Air Conditioning Function; the skills are Locate, imagery or simulator
K9, K10, S1–S7 Oxygen system types, components, maintenance and inspection Ch. 16 — Aircraft Oxygen Systems; Oxygen Systems & Components; Gaseous Oxygen Systems; Chemical Oxygen Systems; Liquid Oxygen; Oxygen System Servicing; Servicing Gaseous Oxygen; Prevention of Oxygen Fires or Explosions AF-G Concepts §1 — eleven of this unit's elements
R1, R3, R4 Oxygen maintenance; chemical oxygen generators; compressed gas cylinders Ch. 16 — Prevention of Oxygen Fires or Explosions; Oxygen System Servicing; Chemical or Solid Oxygen AF-G Concepts §2
R2 Recovery of vapor-cycle refrigerant — Regulated. You will not do it
R5, R6 Manufacturer servicing procedures; combustion heater maintenance Ch. 16 — Combustion Heaters —

The operative sources

  • The oxygen equipment manufacturer's servicing instructions, which govern cleanliness, charging rate and materials.
  • The aircraft maintenance manual for pressurization and heater servicing.
  • EPA refrigerant handling requirements for R2 — cited so you know who may do it, which is not you.

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