What this system is
ATA 27 covers primary and secondary flight-control systems. Depending on the aircraft, control may be mechanical, hydraulic, electrically signalled, powered or a combination.
AIRCRAFT SYSTEM LEARNING
ATA 27 — Flight Controls
ATA 27 covers primary and secondary flight-control systems. Depending on the aircraft, control may be mechanical, hydraulic, electrically signalled, powered or a combination.
LEARNStart with system fundamentalsUse guided learning paths and beginner-friendly explanations.
SOLVEReview troubleshooting casesFind reported symptoms, findings, causes and verified outcomes.
ASKAsk a technical questionUse the community when indexed knowledge does not answer the problem.
UNDERSTANDLook up technical termsMove from unfamiliar terminology into connected learning.
ATA 27
Flight Controls
Primary and secondary flight-control systems.
78%Developing profileNeeds refresh
START LEARNINGStart with the system purpose and major component groups, then use the linked glossary, resources and videos before moving into aircraft-specific detail.
TROUBLESHOOT THIS SYSTEMDefine the reported symptom, confirm aircraft and configuration applicability, then follow current approved fault-isolation and maintenance data.
Why it exists
Allow controlled changes in aircraft attitude, lift and drag while maintaining stability and structural or flight-envelope protections where designed.
What belongs here
- Ailerons and spoilers
- Elevators or stabilators
- Rudder
- Flaps and slats
- Control columns, pedals or sidesticks
- Actuators and power-control units
- Flight-control computers
- Position sensors and feedback systems
What users may see
Surface-position indications, configuration displays, trim position, control-law or mode status, disagree messages and computer or actuator faults may be presented.
What technicians commonly evaluate
Rigging, free play, hydraulic or electrical power, sensor agreement, actuator leakage, control-surface condition, software/configuration and exact operational-test prerequisites require careful control.
AIRCRAFT APPLICABILITY
General ATA knowledge
General ATA knowledge is separated from aircraft-family and exact-variant information.
Choose an aircraft family to narrow resources, cases, questions and indexed applicability.
Choose aircraftCONNECTED KNOWLEDGE
Clear content filters20 useful next steps
Content is filtered by the selected ATA chapter and, where indexed, the aircraft and exact variant.
Technical resources
Browse all →SYSTEM_GUIDEA350 Flight-Control Actuation Technologies and Redundancy
A focused explanation of hydraulic servocontrols, EHA, EBHA, damping, anti-extension and distributed redundancy.
Aircraft familySYSTEM_GUIDEA350 Flight-Control Monitoring, Indications and Maintenance ReasoningA practical guide to F/CTL indications, warnings, OMS data, hidden failures, tests and safe fault isolation.
Aircraft familySYSTEM_GUIDEA350 Speed Brakes, Ground Spoilers and Load AlleviationA focused guide to symmetric spoiler functions, deployment logic, performance effects and related PFCS load-management functions.
Aircraft familySYSTEM_GUIDEA350 High-Lift System - Slats, Droop Nose and FlapsA detailed guide to SFCC architecture, PCUs, transmissions, slat and flap surfaces, position sensing and protection.
Aircraft familySYSTEM_GUIDEA350 Rudder Control, Actuation and MonitoringA complete study of rudder pedals, feel and trim, yaw-law computation, servocontrols, EHA backup and fault monitoring.
Aircraft familySYSTEM_GUIDEA350 Pitch Control - Elevators and Trimmable Horizontal StabilizerA detailed study of pitch-law commands, elevator actuation, EHA support, damping, THS trim and monitoring.
Aircraft familySYSTEM_GUIDEA350 Roll Control - Ailerons, Spoilers and Load FunctionsA detailed study of lateral control, aileron and spoiler actuation, EBHA behavior, speed brakes, ground spoilers and monitoring.
Aircraft familySYSTEM_GUIDEA350 Flight-Control Laws and Envelope ProtectionsAn educational guide to normal, alternate, direct, abnormal and back-up control laws and their effect on handling and maintenance interpretation.
Aircraft familyTraining videos
Browse all →MIXED VIDEOA350 SLAT SYSTEM DEACTIVATION AND MEL DISPATCH
Good day, in this video you will see how the Minimum Equipment List is applied on the Slat system of the A350. Maintenance action show you how the sy…
Dennis Vijverberg, Brakes Released · 11:32MIXED VIDEOAirbus A350-1000 RH spoiler 3 deactivated. #aviation #airbus #a350Dennis Vijverberg, Brakes Released · 1:00MIXED VIDEOMax YawDamper MEL1Applying MEL for Yaw Damper. Performing a SP4.
Michael Whittington · 4:46MIXED VIDEOMAX Ground Spoiler Control TestMichael Whittington · 4:02MIXED VIDEOAccessing TE Flap Pos using EA 1 A27 0749Michael Whittington · 3:28MIXED VIDEOAccessing TE Flap Pos using ACMSMichael Whittington · 3:45MIXED VIDEOMAX RTS OJT 4 Ground Spoiler Control Module TestGround Spoiler Test (AMM 27-62-00)
Michael Whittington · 4:05MIXED VIDEOMAX RTS OJT 2 Trouble Shooting and Clearing Yaw Damper MELT/S & Clearing Yaw Damper MEL
Michael Whittington · 3:58Related glossary terms
Browse all →INTERMEDIATEFly-by-wire
A flight-control architecture in which pilot commands are transmitted and processed electrically rather than solely through direct mechanical linkage.
BEGINNERAngle of attackThe angle between the local airflow and a defined reference line on the aircraft or wing.
INTERMEDIATEStall warning systemA system that warns when the aircraft approaches an aerodynamic stall condition.
ADVANCEDFlight control computerA computer that processes commands and sensor inputs to control or monitor aircraft flight-control functions.
SOURCE & REVIEW BOUNDARY
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TechOpsBase supports learning and technical discovery. Current approved maintenance data, engineering instructions and company procedures control real aircraft work.
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