Cessna Aircraft Undifferentiated or Other Model
Air Traffic Control Fully Certified
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors; Procedure; Aircraft
I was CPC-IT training on Local Control; the active runway was 33 only; and Runway 19 was closed. A C162 was straight in on the LOC/DME Runway 33 Approach; VFR practice; and intended on completing the approach and staying in the close traffic pattern. The C162 was issued 'Cleared for the option;' a C180 was on a mid-field right downwind instructed to 'extend downwind' and was issued traffic to follow and advise when traffic was insight. The C180 said 'Cessna insight'; Local Control then instructed the C180 to 'follow the Cessna Runway 33 cleared to land'. Local Control received an accurate read back from the C180. The C162 crossed the runway threshold high but continued with descent for 'the option'. The C162 landed and the C180 turned a very close in base and was short final. Local Control instructed the C162 to 'start your Go traffic short final' the C162 reported 'we're rolling'. The C162 was rolling; Local Control anticipated them being airborne before the C180 crossed the threshold and did not send the C180 around. The C162 then stopped and said (in effect) 'we just lost our engine'. As the C162 was transmitting the C180 crossed the threshold of Runway 33 and landed. By the C162 stating they were 'rolling' during a possible touch and go or stop and go maneuver that would make them a departure aircraft. When the C162 stopped on the runway with a 'failed engine'; transmitted their status effectively making the frequency unavailable; Local Control was unable to send the C180 around. Closest approximate proximity between both aircraft was 4;300 FT. It is recognized that Local Control was incorrect in issuing 'the option' to the C162 ensuring minimum runway occupancy time. Recommendation; add in the AIM what standard same runway arrival/arrival and arrival/departure separation is as defined.
Tower Controller described a loss of separation event when traffic on an 'option' approach clearance; lost an engine; resulting in a separation issued with an aircraft landing.