The Squadron belongs to 112 Combat wing based in Eleusis near Athens. It was established in 1947, in Hasani airfield (later to be named Ellinikon International airport) with C-47 “Dakota”.
After eight months the Squadron moved to Eleusis and was incorporated into the 13^th Transport Squadron .In this respect it is historically the oldest Squadron in the Hellenic Air Force, because the 13^th Squadron was the only unit that managed to save  part of its equipment
( 5 Avro  Anson Mk Is) and escape to the Middle East after the German invasion and occupation of Greece in 1941.
There, it was re-organized  and re-equipped with Blenheim IV, V and Martin Baltimore aircraft and fought in the North African deserts, in Italy and Yugoslavia. After its return to Greece it was equipped with Wellington aircraft. During the operations of the Civil War 1946-49, it undertook transport duties and even bombing with specially modified C-47aircraft.
In the operations of the Civil War 1946-49 it was tasked with transport duties and in some cases bombing, with specially modified C-47 aircraft.
In 1950 a flight of 7 C-47s and their crews from 355 Sq. was flown to North Korea, taking part in the War, as part of the U.N. forces.
The 13^th flight as it was named, was tasked with transport and MEDEVAC duties.
The unit lost two aircraft in accidents which were replaced by two C-47s sent from Greece.
In 1960 two aircraft took part in the evacuation of Greek nationals from the Congo after a civil war broke out in that country.
From 1968 until 1973 the Squadron was tasked with crop-spraying on behalf of the Ministry of Agriculture.
The first CL-215 aircraft arrived in Greece in 1974 and they were allocated to 359 MAEDY) forming a firefighting flight.
In December of 1975 the aircraft were transferred to 355 Sq.
In 22.12.1975 the unit was renamed 355 MTM (tactical transport squadron) and started firefighting duties.
In 1.7.1982 354 MTM ws disbanded and the unit’s last remaining Nord 2501 Noratlas aircraft were transferred to 355 MTM.
In December 1983 these were replaced by Do-28 D2 Skyservant light transport aircraft. One Noratlas survived until 28.3.1983, as a radio calibration aircraft. Since 1984 the C-47s are permanently stationed at Sedes airfield in Thessaloniki.

In 1996 the Squadron received four CL-215 from Yugoslavia.
The inventory of the squadron grew with the arrival of the first CL-415 in 30.1.1999 which was part of an order of 10 aircraft. Very soon, in August of 1999, the squadron participated in the efforts to extinguish the big fire in the Turpas refineries in Turkey. In 2000 the squadron took part in the firefighting operations in Cyprus, with two aircraft. A similar operation took part during the next year. In May 2003, due to the large number of personnel and equipment concentrated in the Squadron, the unit was split in three, forming the 355 MTM, 383 MEEA and MSA (maintenance squadron).

The badge of the Squadron is an eagle carrying a cannon on its claws, on yellow background.

During the summer season the Squadron’s aircraft are sent to various dispersal airfields where firefighting detachments are formed according to the yearly plans of the Fire Department which takes operational control of all CL-215/415 aircraft from June until October. Usually the aircraft are deployed to Andravida (117 CW), Samos island, Nea Anhialos (111 CW), Macedonia (113 CW) and Aktion (131 CG), while a small number remains in 112 CW at Eleusis. During the winter months the Squadron retains its firefighting readiness and S.A.R duties with CL-215/415 and Do 28 Skyservant aircraft.
The Squadron’s long history of service to the community during the last 33 years with successful firefighting, S.A.R and medical evacuation flights, is greatly appreciated by the public.
Among its other duties are: light transport, para-drops, and V.I.P flights. The Squadron’s equipment include 13 CL-215 and a few Do-28 aircraft.
Due to the increased crew demand during the “firefighting season” (two crews for every aircraft on a daily basis) the unit employs a great number of flying personnel, not only on active duty, but also reserve and part-time pilots.
The servicing of the aircraft is the duty of MSA.
The Squadron’s personnel has amassed great experience for 33 years in firefighting operations flying with aircraft that have by now passed their useful operational life.
The Canadair CL-215 is the first aircraft specifically built for firefighting and water scooping from lakes, reservoirs and the sea. It has the capability to drop its water load, or a mix of water and foam, from two ventral doors.
This tireless worker will have to be replaced soon, when the decisions for renewing the H.A.F firefighting fleet are taken.