Is this a known problem on Convair CV-340/440 aircraft?
I flew the Convair 440 Metropolitan as QFI on the RAAF No 34 (VIP) Squadron for several years 1963-68. Apart from the occasional induction fires caused by over-priming during engine start, I do not recall any in-flight engine fires. The over-priming fires were caused by inexperienced ground engineers starting the Convair engines for the first time without adequate supervision.