Harrier GR3 RAF SERVICE RECORD

[Kilonovember52]

I have just received the record cards for XV752 through the post this morning.
Unfortunately the cards are only complete up until April 1986. So thanks to Jackonicko and Farde17 for filling in some of the gaps of the later service of this Harrier.

There are a few acronyms on the cards I don’t understand. Can anyone help decipher them?

They are

H.C.T (Is it possible this is Harrier conversion Team?)

A D A (appears to be related to damage i.e. in 1985 the aircraft suffered a bird strike as was listed ADA)

ROS (relates to a transfer to 71 MU). Incidentally was 71 MU based at Bicester?

Finally does anyone know when 4 Squadron finally retired their GR3’s?

Many Thanks.