Aviation Mechanic - General, Airframe, and Powerplant › II. Airframe › Task L. Ice and Rain Control Systems

AM.II.L.K7

Knowledge

Environmental conditions that degrade vision.

Study note

Get a short, cited explanation of this element written from the FAA handbooks: the core idea, the numbers that matter, common test traps, and a quick self-check.

From the FAA library

Aviation Maintenance Technician Handbook - Airframe p. 16-44
Chapter 16: Cabin Environmental Control Systems › Vapor Cycle Air Conditioning › Vapor Cycle Air Conditioning System Components
Vapor Cycle Air Conditioning System Components By examining each component in the vapor cycle air conditioning system, greater insight into its function can be gained. Refrigerant For many years, dichlorodifluoromethane (R12) was the standard refrigerant used in aircraft vapor cycle ... conditioning systems. Some of these systems remain in use today. R12 was found to have a negative effect on the environment; in particular, it degraded the earth’s protective ozone layer. In most cases, it has been replaced by tetrafluoroethane…
Aviation Maintenance Technician Handbook - Airframe p. 16-42
Chapter 16: Cabin Environmental Control Systems › Air Cycle Air Conditioning › Cabin Temperature Control System
Figure 16-69. The air cycle air conditioning system of a DC-10 transport category aircraft uses only one heat exchanger per ACM. Cabin temperature pickup units and duct temperature sensors used in the temperature control system are thermistors. Their ... temperature sensors are strategically located to provide useful information to control cabin temperature. [Figure 16-71] Vapor Cycle Air Conditioning The absence of a bleed air source on reciprocating engine aircraft makes the use of an air cycle system impractical…
14 CFR Part 135 — Operating Requirements: Commuter and on Demand Operations and Rules Governing Persons on Board Such Aircraft Open
14 CFR § 135.227 Icing conditions: Operating limitations.
Icing conditions: Operating limitations. (c) No pilot may fly under IFR into known or forecast light or moderate icing conditions or under VFR into known light or moderate icing conditions, unless— (1) The aircraft has functioning deicing or anti-icing ... airplane meets transport category airplane type certification provisions, including the requirements for certification for flight in icing conditions. (d) No pilot may fly a helicopter under IFR into known or forecast icing conditions or under VFR into known icing conditions…