Tower controller is advised of a near midair collision by a helicopter pilot transitioning northboun...

Attributes
ACN	1154708
Time
Date	201403
Local Time Of Day	1801-2400
Place
Locale Reference	TMB.Airport
State Reference	FL
Aircraft 1
Make Model Name	Helicopter
Flight Phase	Cruise
Route In Use	None
Flight Plan	VFR
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Operating Under FAR Part	Part 91
Person 1
Function	Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Conflict NMAC Deviation - Procedural Published Material / Policy

Narrative:

A helicopter was outside class D airspace on a northbound transition west of krome ave. A C172 was in the VFR traffic pattern conducting touch and goes. Just north of the 5 mile final of runway 9L; the helicopter pilot informed me that it had a close call with the C172. I asked how close it was; he informed me it was about 100 feet separation. Recommendation for this event not happening again would be to give traffic advisories to aircraft in close proximity. I was busy handling the five aircraft in the traffic pattern and forgot to call traffic to the helicopter. I have to maintain better awareness.

Original NASA ASRS Text

Title: Tower Controller is advised of a NMAC by a helicopter pilot transitioning northbound through the Class D; with a C172 in the VFR traffic pattern.

Narrative: A helicopter was outside Class D airspace on a northbound transition west of Krome Ave. A C172 was in the VFR traffic pattern conducting touch and goes. Just north of the 5 mile final of RWY 9L; the helicopter pilot informed me that it had a close call with the C172. I asked how close it was; he informed me it was about 100 feet separation. Recommendation for this event not happening again would be to give traffic advisories to aircraft in close proximity. I was busy handling the five aircraft in the traffic pattern and forgot to call traffic to the helicopter. I have to maintain better awareness.

Data retrieved from NASA's ASRS site 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.

Tower controller is advised of a near midair collision by a helicopter pilot transitioning northbound through the class D; with a C172 in the VFR traffic pattern.