Specialisation maintenance specialisations - airframes or engines.
Approvals approval from major airworthiness authorities to conduct overhaul, repair, maintenance or modification work is indicated by the abbreviations: CAA UK Civil Aviation Authority; CAAC Civil Aviation Administration of China; FAA US Federal Aviation Administration; JAA European Joint Airworthiness Authorities; LBA German Luftfahrt-Bundesamt; and DGAC French Direction Générale de Aéronautique Civile. Space restrictions mean that some other approvals may be held, but not listed.
Aircraft type as a rough indication of the range of maintenance available, the principal large and small aircraft types accepted are listed. Some designations are abbreviated.
Capacity the hangar capacity available for dedicated overhaul/maintenance work has been derived by asking companies how many aircraft they can accommodate at the same time if they are all of a similar size: ie, all are widebodies, all are narrowbodies or all are commuter aircraft.
Overhaul checks the level of check offered, B, C or D.
Additional services offering modification services, holding supplemental type certificates, able to fit new interiors or to paint aircraft.
Engines powerplants listed include turbofans, turboprops, turboshafts and auxiliary power units which are principally or solely civilian in application.
NB AlliedSignal is now part of Honeywell.
Source: Flight International
