Estonia is the first country to get the new MSS 7000 system, after operating the MSS 6000 for more than 10 years. The new MSS 7000 system for Estonia has installed on board a new Beech King Air 350ER aircraft.

Aptoz provides EASA or FAA approved repairs or repair specifications as:

1. Unrepaired damage (fly-on) 
2. Temporary repairs
3. Permanent repairs

We repair composite and metal structure that is damaged beyond structural repair limits. We routinely provide MRO repairs for cowlings, thrust reversers and other removable components that the OEMs want you to remove and send to shop. We provide AOG fly-ons with unrepaired damage and also repairs to all parts of the fuselage, empennage, wings and other structure primary or secondary and also fatigue critical structure.  

We provide stage 1 (static), 2 (fatigue and damage tolerance) and 3 (inspection program) approvals. We can even provide stage 2 and 3 if the OEM has only provided stage 1. 

The CF6-80C engines on the 767 have two different versions of door opening systems that open the thrust reverser halves for access to the engine during maintenance.

• Power Door Opening System (PDOS) with thrust reverser power opening pack connected to aircraft power operated with a switch on the thrust reverser.
• Manual Door Opening System (MDOS) with thrust reverser handpump quick release connector.

This change is done to prepare installation of engines with PDOS system on aircraft that is not provisioned for PDOS system, therefore the MDOS procedure can only be used for opening and closing of the thrust reversers halves for maintenance access.

The FIELD AVIATION temporary Auxiliary Power Unit (APU) Removal STC allows for continued operations of the aircraft with the APU removed.

Please click on "Front sheet" link for a copy of our brochure.

The FIELD AVIATION APU removal STC for the DHC-8 provides the operator with a procedure for removing the OEM Installed Hamilton Sundstrand T-62T-40C7B Auxiliary Power Unit.

Please click on "Front sheet" link for a copy of our brochure.

As part of lease return, phase-out, or aircraft transition processes, removal or reversal of previously installed STCs is often required. These could include obsolete systems, lessee-specific modifications, or customer-tailored configurations no longer applicable for the next operator.

Fokker Services provides certified engineering support for the full demodification process, ensuring compliance, traceability, and airworthiness restoration aligned with the requirements of the new lessee or owner.

The CF6-80C engines on the 767 have two different versions of door opening systems that open the thrust reverser halves 

for access to the engine during maintenance.  

- Power Door Opening System (PDOS) with thrust reverser power opening pack connected to aircraft power operated with a switch on the thrust reverser.  

- Manual Door Opening System (MDOS) with thrust reverser handpump quick release connector. 

Fokker Services offers a minor modification to support the use of Turbonycoil oils (600 or 640) from Nyco (France) for your aircraft's engine, APU, or IDG systems.

Installation of GTCP30-92 or GTCP30-92C auxiliary power unit.

Installation of GTCP 30-92C auxiliary power unit.