Mwh controller described conflict during split local operations when two aircraft made approach's to...

Attributes
ACN	808058
Time
Date	200810
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mwh.airport
State Reference	WA
Altitude	agl single value : 50
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mwh.tower
Operator	general aviation : instructional
Make Model Name	Sundowner 23
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Aircraft 2
Controlling Facilities	tower : mwh.tower
Operator	general aviation : instructional
Make Model Name	Sundowner 23
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Flight Plan	None
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : radar
Experience	controller radar : 10 controller time certified in position1 : 18
ASRS Report	808058
Events
Anomaly	conflict : airborne critical
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance flight crew : took evasive action
Miss Distance	horizontal : 35 vertical : 35
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance
Primary Problem	ATC Human Performance

Narrative:

I was instructing on another local position; when my trainee commented 'why do we have 2 aircraft landing on each other.' I turned to look and saw aircraft #1 about 20-30 ft from the threshold of runway 18 about 15 ft in the air; and just about ready to flare; aircraft #2 was approximately 35 ft behind; and 35-40 ft above; descending for the runway. About this time; I heard the instructor of the student controling the other local position instruct aircraft #2 to go around. Aircraft #2 was in such a position that they could not see aircraft #1 below them. During this time we had training going on at 3 position at the same time; with a supervisor performing the cabin attendant supervisor oversight. The tower where I work has split lcls; and due to a mandate from the atm; we have been working radar; and 2 local position in the cabin attendant; so that 3 controllers are sharing 2 d-brite scopes. Each controller is responsible for RA's; to the aircraft they are talking to; and when it gets busy it is very difficult to read the data blocks. It is also very distracting to have that much training going on at a time. This operation I feel is very unsafe; and even though we have brought up our concerns to management for the past 3-4 weeks; nothing is being done. I firmly believe there will be other close calls; that will be reported in the future.

Original NASA ASRS Text

Title: MWH CTLR DESCRIBED CONFLICT DURING SPLIT LCL OPS WHEN TWO ACFT MADE APCH'S TO THE SAME RWY; TRAINING ON BOTH LCL'S; GAR ISSUED TO SECOND ACFT.

Narrative: I WAS INSTRUCTING ON ANOTHER LCL POS; WHEN MY TRAINEE COMMENTED 'WHY DO WE HAVE 2 ACFT LNDG ON EACH OTHER.' I TURNED TO LOOK AND SAW ACFT #1 ABOUT 20-30 FT FROM THE THRESHOLD OF RWY 18 ABOUT 15 FT IN THE AIR; AND JUST ABOUT READY TO FLARE; ACFT #2 WAS APPROX 35 FT BEHIND; AND 35-40 FT ABOVE; DSNDING FOR THE RWY. ABOUT THIS TIME; I HEARD THE INSTRUCTOR OF THE STUDENT CTLING THE OTHER LCL POS INSTRUCT ACFT #2 TO GO AROUND. ACFT #2 WAS IN SUCH A POS THAT THEY COULD NOT SEE ACFT #1 BELOW THEM. DURING THIS TIME WE HAD TRAINING GOING ON AT 3 POS AT THE SAME TIME; WITH A SUPVR PERFORMING THE CAB SUPVR OVERSIGHT. THE TWR WHERE I WORK HAS SPLIT LCLS; AND DUE TO A MANDATE FROM THE ATM; WE HAVE BEEN WORKING RADAR; AND 2 LCL POS IN THE CAB; SO THAT 3 CTLRS ARE SHARING 2 D-BRITE SCOPES. EACH CTLR IS RESPONSIBLE FOR RA'S; TO THE ACFT THEY ARE TALKING TO; AND WHEN IT GETS BUSY IT IS VERY DIFFICULT TO READ THE DATA BLOCKS. IT IS ALSO VERY DISTRACTING TO HAVE THAT MUCH TRAINING GOING ON AT A TIME. THIS OP I FEEL IS VERY UNSAFE; AND EVEN THOUGH WE HAVE BROUGHT UP OUR CONCERNS TO MGMNT FOR THE PAST 3-4 WKS; NOTHING IS BEING DONE. I FIRMLY BELIEVE THERE WILL BE OTHER CLOSE CALLS; THAT WILL BE RPTED IN THE FUTURE.

Data retrieved from NASA's ASRS site as of May 2009 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.

Mwh controller described conflict during split local operations when two aircraft made approach's to the same runway; training on both local's; go around issued to second aircraft.