On-Wing Services

Trenchard’s On-Wing Service package brings together the full range of group capabilities delivered through a dedicated and experienced team of technicians based at the client’s facility.

With a dedicated tablet-based software platform, Trenchard Technicians work alongside client’s maintenance teams to deliver cabin interior standards through a comprehensive turnkey contract.

Teams share experience in common faults and rectification with the capability to design improved parts and reduce defects and cost. Warranty management forms part of the services on offer.

On-Wing Capabilities

  • Passenger and Crew Seats – Maintenance and Overhaul
  • Carpet Cutting and Fitting
  • Dry-cleaning
  • Galley and Monument Refurbishment
  • Composite Repairs to Airframes and Nacelles
  • Sidewall Recovering
  • Battery Support – Overhaul, Unit and Capacity Testing
  • Oxygen Bottle Repairs and Replenishment
  • Emergency Slide Repair and Overhaul
  • Plastic Repairs
  • Global On-Wing Support
  • IFE Repairs
  • Global End-of-Lease Support


Teams of highly trained technicians are available 24/7, 365 days a year to provide Aircraft-On-Ground (AOG) support for:

  • Airframe Repairs (airframe and engines)
  • Composite Repairs (airframe and engines)
  • Battery Support
  • Welding and Fabrication

Airframe and Heat Treatment Workshops

The Group’s Airframe and Heat Treatment workshop technicians have extensive experience and capabilities in sheet fabrication, machining, heat treatment and detail assembly shop practices for both repair and manufacture of airframe parts.

The workshops are comprehensively stocked with fabrication equipment and machine tools  complemented by Heat Treatment facilities, ensuring that virtually every demand for scheduled maintenance as well as ad hoc repairs and the manufacture of detail parts/assemblies can be met on time.

At any one time, highly skilled technicians are repairing/modifying or maintaining parts for, but not limited to:

  • Passenger Doors
  • Undercarriage Doors
  • Flying Controls
  • Flaps
  • Rudders
  • Air Intakes
  • Engine Cowling


The Group’s Composite workshops have the capability and approvals to repair most types of composite and glass-reinforced plastic materials as well as metal bonding (PANTA).

  • Airframe Structures
  • Interiors and Engines

Welding Bay

With CAA-approved welding workshop technicians are trained to the highest standards, including TIG (Tungsten Inert Gas) welding, the Group is able to work with which include:

  • Stainless Steel
  • Mild Steel
  • Nimonic
  • Aluminium
  • Titanium

All work carried out is substantiated with EASA Form 1 conformation documents.

Battery Workshops

With a combination of state-of-the-art equipment and the highest levels of expertise and experience, the Group has the capabilities and approvals to work on all Nickel Cadmium batteries and offers the following services:

  • Unit Testing
  • Capacity Testing
  • Recondition
  • Overhaul

Aero Technics

Unit 1 Garcia Estate
Canterbury Road
West Sussex
BN13 1AL

+44 (0)1903 268 400


Aero Technics Manchester

Unit C Enterprise Park
Roundthorne Industrial Estate
M23 9LE

+44 (0)1619 461 708