Air Traffic Control Fully Certified
Communication Breakdown; Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors
During an emergency situation I was vectoring a Lifeguard for a Class D airport adjacent to a Class C Airport. The Lifeguard said that he could take a small delay for the Emergency Aircraft. I anticipated the descent of a B737 going into the Class C also. After working out the sequence with the emergency and the Lifeguard I recognized that the B737 had descended more rapidly than anticipated and went thru the 4;700 FT MVA. The next lowest MVA is 3;000 and I did not say anything because he would be in the MVA in less then a mile. During the complex situation I should not have anticipated the descent of the aircraft.
TRACON Controller trying to accommodate an emergency and Lifeguard aircraft; allowed an inbound to momentarily descend below the MVA during sequencing into the same airport.