Ground maintenance includes safety-pin control, deployment area protection, stowage and functional checks under strict procedures.
← Aviation glossary
AIRCRAFT SYSTEMSINTERMEDIATE
RAT
RAT Abbreviation · Ram Air Turbine Synonym
Ram Air Turbine: a deployable turbine that uses airflow to provide emergency hydraulic or electrical power.
Use this page toUnderstand the term in plain languageSee technical and maintenance contextContinue to related learning in one click
How the term is used
Depending on design, the RAT can drive a hydraulic pump, generator or both. Deployment can be automatic or manual and is intended for defined loss-of-power conditions.
Where you may encounter it
Technicians verify configuration and safe clearance before any RAT-related action.
Unexpected deployment can cause serious injury and equipment damage. Observe all safety devices and approved procedures.
LEARN NEXT
Continue beyond the definition
RESOURCE · DIAGRAMB737 MAX ATA 24 — Electrical Power Visual Map
An original source-to-bus diagram linking IDGs, APU/external power, AC buses, TRUs, DC buses, battery and standby conversion.
RESOURCE · ARTICLEB737 MAX ATA 24 — AC Generation: IDGs, Generator Control and the Main Power SourcesUnderstand how engine-driven generation becomes controlled aircraft AC power and why source quality matters before a bus is energ…
RESOURCE · DIAGRAMB737 MAX ATA 29 — Hydraulic Power Visual MapA four-diagram original TechOpsBase visual explainer for Systems A/B, pump pairing, standby hydraulics and the PTU relationship.
RESOURCE · SYSTEM GUIDEB737 MAX ATA 29 — Standby Hydraulic System ExplainedUnderstand the standby reservoir, electric pump, pressure module and backup-function role without confusing the standby circuit w…
RESOURCE · SYSTEM GUIDEB737 MAX ATA 29 — Power Transfer Unit (PTU): Functional Role and System RelationshipsLearn what the PTU transfers, why the A and B fluids do not need to mix, and how leading-edge-device, air/ground and pressure-swi…
RESOURCE · ARTICLEB737 MAX ATA 29 — Hydraulic Indications and Technician ReasoningUse pressure, LOW PRESSURE and system behavior as separate evidence streams instead of treating one cockpit indication as a compl…
VIDEO · Dennis Vijverberg, Brakes ReleasedAirbus A350 Hydraulic Failure, Pump ReplacementHello everyone, Here an impression of a hydraulic pump replacement on an Airbus A350-1000 RRXWB. #aircraftmaintenance #avia…
VIDEO · Zeto.rATA 29&32 What is the difference between Brake Accumulator and hydraulic power accumulator on A320FThe accumulator is an oleo-pneumatic unit that keeps a specified volume of pressurized hydraulic fluid in it. It has a steel bod…
VIDEO · Zeto.rATA 29 4th hydraulic system on A320, are you sure?Well it depends how are you looking on it. It is called Auxiliary Low-Pressure Control-System and it is here as hydromechanica…
VIDEO · Chatchai PrasertsukATR 72 600 Electrical SystemVIDEO · Chatchai PrasertsukATR 72 600 Hydraulic SystemVIDEO · Dennis Vijverberg, Brakes ReleasedAIRBUS A350 ACMS SYSTEM PAGES ATA 24 ELECTRICAL POWERHello all, here the first in a series of videos about the system pages you can pull up it the A350 OIS. Today we start with ATA 2…
TECHNICAL Q&A · 1 answersWhy must electrical-power discussions state aircraft applicability?Solved discussion
TECHNICAL Q&A · 1 answersWhat should be considered before treating a hydraulic indication as a failed component?Solved discussion
TECHNICAL Q&A · 0 answersWhat makes an electrical troubleshooting question answerable without sharing controlled data?Open discussion
TECHNICAL Q&A · 0 answersWhy must avionics and electrical explanations state aircraft applicability?Open discussion
REVIEWED CASE · TOB-DEMO-320-003Intermittent electrical indication: build a condition map before replacing hardwareIntermittent faults become manageable when the conditions are treated as data.