TRACON controller described a loss of wake separation when coordination between the TRACON and tower...

Narrative:

I received a hand off of a FAA flight check aircraft from the arrival controller. Arrival controller informed me of the aircraft's intentions of flying direct the dsm VOR then southbound toward a satellite airport all VFR. His course would take him right through towers airspace; and the arrival controller told me that all point outs and coordination had been accomplished. As the flight check aircraft neared the local controller's departure corridor at 3;000 ft; I got a strip on a B757 and saw the data block acquired right off the departure end. My initial reaction was confusion; because I couldn't believe local controller would clear any aircraft for take off with the flight check aircraft right in the way without any restrictions. Once I got past the confusion (estimated about 3 seconds) I turned the flight check aircraft to avoid conflict and also turned the B757 to avoid conflict. The vectors put the flight check aircraft directly behind the B757 at or near the same altitude. I estimate them passing 1.5 miles apart. If I hadn't vectored; there would most assuredly been a near midair collision if not an actual near midair collision. I suspect the local controller simply forgot about the previous point out that he had approved.

Original NASA ASRS Text

Title: TRACON Controller described a loss of wake separation when coordination between the TRACON and Tower was less than clear involving an FAA Flight Check aircraft.

Narrative: I received a hand off of a FAA Flight Check aircraft from the Arrival Controller. Arrival Controller informed me of the aircraft's intentions of flying direct the DSM VOR then southbound toward a satellite airport all VFR. His course would take him right through Towers airspace; and the Arrival Controller told me that all point outs and coordination had been accomplished. As the Flight Check aircraft neared the Local Controller's departure corridor at 3;000 FT; I got a strip on a B757 and saw the data block acquired right off the departure end. My initial reaction was confusion; because I couldn't believe Local Controller would clear any aircraft for take off with the Flight Check aircraft right in the way without any restrictions. Once I got past the confusion (estimated about 3 seconds) I turned the Flight Check aircraft to avoid conflict and also turned the B757 to avoid conflict. The vectors put the Flight Check aircraft directly behind the B757 at or near the same altitude. I estimate them passing 1.5 miles apart. If I hadn't vectored; there would most assuredly been a NMAC if not an actual NMAC. I suspect the Local Controller simply forgot about the previous point out that he had approved.

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.

Attributes
ACN	985435
Time
Date	201112
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Bombardier Learjet Undifferentiated or Other Model
Flight Phase	Cruise
Flight Plan	VFR
Aircraft 2
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Approach Departure
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

TRACON controller described a loss of wake separation when coordination between the TRACON and tower was less than clear involving an FAA flight check aircraft.