In 1975 or so when the 146 was relaunched one of the prospects we identified was Philippine Airways as they and their subsidiaries had a multitude of suitable inter-island routes. Brian Botting and I went to talk to them a couple of times but without success, but the Far Eastern Tour of 1982 went there nevertheless.
I had a CT scan at our local hospital this morning and when the radiographer turned out to be Filipino I told him the above. He recognised the 146 as a small four-engined aeroplane that did operate in the Philippines so it seems we had some success after all.