At this time Squadron Leader Lau is reported missing with his crew; he is hit by flak and has to force-land in the Gross-Wartenberg area and is captured by the Russians.    From Wordnik.com.  [Stuka Pilot]

The pilot noticed oil leakage in the transmission section and informed ATC authorities that he had to force-land.    From Wordnik.com.  [The Hindu - Front Page] Reference