PETALING JAYA – Evidence of “irregular maintenance activities” was found by Malaysia’s Air Accident Investigation Bureau (AAIB) in its investigation ofthe Feb 13 air crash in Kapar, Selangor.

AAIB said in its preliminary report released on March 13 that evidence includes the installation of uncertified or non-conforming aircraft parts on the Singapore-owned and operated BK 160 Gabriel light aircraft involved in the fatal crash that killed two Malaysians.