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AVIATION / Airframe & controls / REVIEWED 2026-09-11

A05Actuators & control drives

Move control surfaces and mechanisms.

Manufacturers & products

Actuators translate power and commands into movement. Primary control, trim, flap/slat and utility actuators require separate failure and interface assessments.

Program applicability is stated for each listing. 737NG, 737 MAX, and other aircraft examples are distinct configurations; listed products are not automatically interchangeable or approved for installation.

manufacturer

Moog

737NG flight-control actuators

Official aftermarket sheet identifies autopilot and short-field spoiler actuator references for the 737NG. [1]

Program / application

737NG — documented; short-field option is variant-dependent [1]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

Product scope & qualifications
  • Sheet identifies P665A0001 short-field spoiler actuation as standard on 737-900, optional on 737-800 and not offered on MAX. Confirm current effectivity and source availability with Moog.
View product & inquiry route
manufacturer

Woodward

Hydraulic and electromechanical actuation

Provides hydraulic and electromechanical aircraft flight-control and utility actuation. [2]

Program / application

General actuation capability; 737 applicability unverified [2]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route
manufacturer

Safran Electronics & Defense

High-lift and trim actuation

Supports high-lift actuators, power-drive units, brakes and trim systems within its acquired actuation business. [4][3]

Program / application

737 — aftermarket platform documented; exact generation unverified [4][3]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

Product scope & qualifications
  • An aftermarket platform list does not establish a specific original-fit actuator. Former Collins actuation activities are not counted as a separate supplier.
View product & inquiry route
manufacturer

Eaton

Flap and slat actuation

Provides secondary flight-control systems and components for commercial and business-aircraft OEMs. [5]

Program / application

General high-lift capability; 737 applicability unverified [5]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route
manufacturer

Liebherr-Aerospace

High-lift and primary actuation

Provides flap/slat power drives, rotary and ball-screw actuators, transmission and control electronics. [6]

Program / application

Other aircraft references; 737 applicability unverified [6]

Custom program inquiry

Contact the manufacturer or aircraft OEM for the applicable approved program and configuration. This is an inquiry route, not an assertion of stock, price or installation eligibility.

View product & inquiry route

What remains unverified

  • The cited narrowbody actuator sheet publishes identification rather than force, stroke or response curves. Program-specific performance data requires manufacturer documentation.

Where it comes from

A company address is shown separately from a published factory location. Request the manufacturing site and lot traceability for the exact part when sourcing.

What to compare

  • Force or torque · N / N·m

    Compare continuous and peak output at the specified supply and temperature.

  • Stroke and rate · mm / deg / s

    Required travel and loaded speed must both be met.

  • Hydraulic or electrical supply

    Confirm pressure, voltage, transient limits and fluid compatibility.

  • Duty and thermal behavior

    Compare operating cycles, stalls and heat rejection.

  • Position sensing and backlash

    Accuracy depends on the complete drive and feedback chain.

  • Jam and loss-of-power behavior

    Evaluate locks, brakes, disconnects and failure propagation.

  • Redundancy

    Map power and command independence to the system safety assessment.

  • Effectivity and maintenance

    Part-number interchangeability and overhaul limits need approved documentation.

Selection & integration notes
  • Safran completed the relevant Collins flight-control/actuation acquisition in July 2025; preserve legacy names only for traceability.

Published product examples

2 REFERENCES

Specifications belong to the named product and configuration.

Moog 158300 autopilot actuatorMoog

Public source establishes the product/work package, but does not publish comparable component mass, load limits or envelope. Request controlled drawings and configuration data through the aircraft program.

Example sources [1]
Moog P665A0001 short-field spoiler actuatorMoog

Public source establishes the product/work package, but does not publish comparable component mass, load limits or envelope. Request controlled drawings and configuration data through the aircraft program.

Example sources [1]

Sources & references

REVIEWED 2026-09-11

Manufacturer pages and technical documents support the linked claims. A review date is not a publication date or stock check.

  1. Flight Controls Provider for the Boeing 737 NG Moog · Publication date not stated

    737NG actuator part references and short-field spoiler option exclusions. The same official sheet was found at its current URL during the 2026-09-14 link check.

    Accessed 2026-09-10
  2. Aircraft Actuation Woodward · Publication date not stated

    Hydraulic and electromechanical primary/secondary aircraft actuation capability.

    Accessed 2026-09-10
  3. Safran announces acquisition of flight-control and actuation activities of Collins Aerospace Safran · Published 2025-07-21

    Closed transaction; acquired business now part of Safran Electronics & Defense.

    Accessed 2026-09-10
  4. Actuation Aftermarket Services Safran · Publication date not stated

    High-lift actuation, trim and thrust-reverser support; lists 737 without generation detail.

    Accessed 2026-09-10
  5. Electric secondary flight controls — flap actuation Eaton · Publication date not stated

    Flap/slat actuation for commercial and business-aircraft OEMs.

    Accessed 2026-09-10
  6. Aircraft control in flight Liebherr · Publication date not stated

    Primary and high-lift actuation and controller capabilities.

    Accessed 2026-09-10