Announcement of Malenczuk's AFC award was, as ever, in the London Gazette:
www.thegazette.co.uk/London/issue/39421/supplement/34
AFAIK the Gazette doesn't publish citations for AFCs, only for "top" medals such as VC or DSO. You can get someone's service record from the MOD, and that might include medal citations:
www.gov.uk/get-copy-military-service-records/apply-for-someone-elses-records. If the applicant is next of kin (which maybe your contact is) it's free and she may get more information.