Some answers/info for posters.
Stationair8.
The last F27 commercial service was on 26 Jul 89 MKY-HTI-CNS with FNQ (now in Museum at Caloundra)
The first F50 commercial service was on 16 Nov 87 SYD-DBO with FNA.
The last F50 commercial service was on 29 Jun 91 to MEL with FNJ.
The Setair freighter lease was from 13 Dec 82 to FCB. The a/c would position from/to Tullamarine.
There were 4 x F27-400QC's. FNO, FNQ, FNR, FNS, and FNT. FNU was a F27-600 purchased from Air France ( F-BOOD ) 12 Aug 70 with the 'big door' but no QC floor. This a/c once flew PER-MEL nonstop with a payload overflying the 2 fuel stops on a Friday pre VFL Grand Final and upon arriving in MEL did a quick MEL-BWT-MEL to cover another unserviceable F27.
Fantome. FNH came to grief at LST on 17 Mar 65 with Joe Waxman and Eddie York during a single engine go-around.
Tinpis. There were no AN F27's being operated in late 1989. All 10 X F50's were in service. ( F50 is technically F27-50 )