Narrative:

I was pilot flying and the first officer was pilot not flying. Approach cleared us for the visual approach to the runway; maintain 170 KTS until the localizer FAF/GS intercept point; which was at 5.5 miles DME. Tower cleared us to land upon check-in. Our approach speeds were vref=112; vapp=117 and vmm=127. We had briefed executing the visual backed up by the ILS. Autopilot was in IAS mode for a descent down to the ILS GS intercept altitude of 2;000 ft with approach mode armed. Horizontal guidance was from the localizer as we had already intercepted final approach course. At about 7.5 DME; I called for flaps 15 degrees setting. As flaps were traveling to the 15 degree setting; the aircraft captured GS and the airspeed began to increase. I reduced the power setting to ensure airspeed stayed below the flaps 15 degree airspeed limit of 175 degrees during the descent. I then called for gear down after flaps were set at 15 degrees. As the pilot not flying completed their landing flow; tower called to cancel our landing clearance. I asked the pilot not flying to ask tower to clarify; as I was unsure of their intentions. Should we expect our landing clearance to be reissued or prepare for a go around? The pilot not flying asked tower why and we received the reply that there was an operations vehicle on the runway but that it would exit soon and we could expect our landing clearance to be reissued. Immediately after this exchange; the pilot not flying called 'you're slow.' I looked at the airspeed indicator to see we were approaching vref and decelerating. I responded with 'correcting' and quickly added power to 90% torque. The pilot not flying then said; 'you're really slow' to which I responded; 'I have 90% set.' the aircraft slowed to 112 KTS before accelerating back to 130 KTS for the approach. Tower reissued our clearance to land and the aircraft was fully configured with the landing checklist complete by 1;000 ft MSL. We completed the rest of the approach and landing without further incident. I allowed myself to get too concerned and distraction by the cancellation of our landing clearance and failed to monitor the aircraft's deceleration to approach speed.

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Original NASA ASRS Text

Title: Distracted by a cancellation of their landing clearance; Captain of an SF340 allowed airspeed to decay below approach speed.

Narrative: I was pilot flying and the First Officer was pilot not flying. Approach cleared us for the visual approach to the runway; maintain 170 KTS until the LOC FAF/GS intercept point; which was at 5.5 miles DME. Tower cleared us to land upon check-in. Our approach speeds were Vref=112; Vapp=117 and Vmm=127. We had briefed executing the visual backed up by the ILS. Autopilot was in IAS mode for a descent down to the ILS GS intercept altitude of 2;000 FT with Approach mode armed. Horizontal guidance was from the LOC as we had already intercepted final approach course. At about 7.5 DME; I called for flaps 15 degrees setting. As flaps were traveling to the 15 degree setting; the aircraft captured GS and the airspeed began to increase. I reduced the power setting to ensure airspeed stayed below the flaps 15 degree airspeed limit of 175 degrees during the descent. I then called for gear down after flaps were set at 15 degrees. As the pilot not flying completed their landing flow; Tower called to cancel our landing clearance. I asked the pilot not flying to ask Tower to clarify; as I was unsure of their intentions. Should we expect our landing clearance to be reissued or prepare for a go around? The pilot not flying asked Tower why and we received the reply that there was an Operations Vehicle on the runway but that it would exit soon and we could expect our landing clearance to be reissued. Immediately after this exchange; the pilot not flying called 'You're slow.' I looked at the airspeed indicator to see we were approaching Vref and decelerating. I responded with 'Correcting' and quickly added power to 90% torque. The pilot not flying then said; 'You're really slow' to which I responded; 'I have 90% set.' The aircraft slowed to 112 KTS before accelerating back to 130 KTS for the approach. Tower reissued our clearance to land and the aircraft was fully configured with the landing checklist complete by 1;000 FT MSL. We completed the rest of the approach and landing without further incident. I allowed myself to get too concerned and distraction by the cancellation of our landing clearance and failed to monitor the aircraft's deceleration to approach speed.

Data retrieved from NASA's ASRS site as of April 2012 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.