During this period he conducted numerous Quick Reaction Alert sorties (policing the United Kingdom airspace) where he and his pilot intercepted over 30 Russian aircraft.

In 1988 he became a Qualified Weapons Instructor in the air defence role and was posted to No 228 OCU, the Phantom Operational Conversion Unit; during this tour he was awarded the MBE.

On Monday 9th January 1989, Moulds was flying as Navigator in a Phantom FGR2, tail number XT908, with Sqn Ldr John Nelson as Pilot.

The first intercept went as planned but in the climb back to 10,000ft, Sqn Ldr Nelson suddenly informed Moulds that he was feeling unwell.

Moulds shouted "Pull Up" and the pilot responded in an agitated manner and selected full dry power (no re-heat) and 10 degrees nose up.

On promotion to Squadron Leader he became the aircraft accident Board of Inquiry advisor for Headquarters 11 Group at RAF Bentley Priory.

A short tour followed in the Ministry of Defence as the desk officer responsible for advising ministers on air matters relating to the Middle East.

Amongst these initiatives were:- The development of Regional Activity Centres providing weekend activities with advanced technology flight simulators and equipment alongside air experience flying or gliding; The introduction of a "Cadet CV" to collate the records of activities of individual cadets and provide evidence to future employers; An updating of the syllabus to relate to 21st century teenagers and bringing in web based training packages; The continued roll out of Project BADER named after Group Captain Douglas Bader bringing a Corps wide IT system of communication, information and training.