Leuk artikel gevonden over onderhoudskosten van een F27 gebruikt voor zeg maar de Australische NLR :
Dit gaat over de onderhouds kosten rond 1985
Maintenance System:
An F-27 used in airline mode, averages around 2800 hours per year, and normally gets an overnight check (-A check) every night, and a -B check about once every two weeks, and so on. This is quite unsuitable for a research usage, which may do at best around 400 hours per year and has to stay in the field for protracted periods; so a special low-utilisation maintenance schedule was developed by East-West airlines in conjunction with both Fokker and the Civil Aviation Authority, allowing the aircraft to be held in the field for up to three months. To achieve this, a LAME with full licences for the F-27 accompanied the aircraft wherever it went, and a stock of critical spares and the ship's maintenance library went also - this amounted to approximately 600 lbs of material permanently installed in the rear baggage compartment. As a consequence, the aircraft proved to be extremely reliable.
The maintenance costs were an ongoing source of dismay to CSIRO;
having acquired the aircraft at a ridiculously low price, CSIRO somehow seemed to have the idea that the maintenance costs should be similarly low. It had been assumed that for 400 hours per year, the maintenance cost would be something like one seventh of the cost for an F-27 doing 2800 hours per year -
however the cost to overhaul one RR Dart was at that time, typically around $ 350,000, and calendar time comes into this, so this was naïve to say the least.
Low utilisation is not good for an aircraft, and the costs do not drop in proportion. This led to some distrust of the maintenance contractor by CSIRO management, who appointed an ex-ASIO officer to keep an eye on things. I recall some excitement over a parts account that included a sum of some $3500 for at item cryptically described as “pin”; however, the part number showed it to be the nose undercarriage main pivot pin! None the less, the maintenance contract came under close scrutiny; however East-West played fair, and kept the aircraft at a high level of airworthiness; some updating of minor components was done in the interests of commonality of the spares pool. The aircraft was, at the author’s instigation, fully stripped and repainted in about 1985, in order to check on possible corrosion under the accumulated layers of 25 years of colour schemes; however it proved to be one of the first F-27s for which the structure had been anodised prior to assembly, and what little corrosion emerged was very localised, and easily repaired.
Source :
History of VH-CAT