Frequency congestion and slow departure roll caused go around.

Attributes
ACN	296330
Time
Date	199502
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mia
State Reference	FL
Altitude	agl bound lower : 300 agl bound upper : 300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mia
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach landing : go around
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	296330
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	other

Narrative:

On arrival at mia, approach controller asked us to maintain 180 KIAS minimum to iness for runway 9R. Due to frequency congestion, we were unable to contact tower until 3 NM from touchdown. We crossed iness at 180 KTS and were in the process of slowing to approach speed. The tower had previously cleared a heavy 4 engine jet into position and hold on runway 9R ahead of our arrival. The combination of an apparent delay in issuance of a takeoff clearance for the heavy and that aircraft slow response to start rolling, we informed tower that we were initiating a go around from 300 ft due to lack of safe separation. We were subsequently cleared back for a visual to runway 9R after the go around.

Original NASA ASRS Text

Title: FREQ CONGESTION AND SLOW DEP ROLL CAUSED GAR.

Narrative: ON ARR AT MIA, APCH CTLR ASKED US TO MAINTAIN 180 KIAS MINIMUM TO INESS FOR RWY 9R. DUE TO FREQ CONGESTION, WE WERE UNABLE TO CONTACT TWR UNTIL 3 NM FROM TOUCHDOWN. WE CROSSED INESS AT 180 KTS AND WERE IN THE PROCESS OF SLOWING TO APCH SPD. THE TWR HAD PREVIOUSLY CLRED A HEAVY 4 ENG JET INTO POS AND HOLD ON RWY 9R AHEAD OF OUR ARR. THE COMBINATION OF AN APPARENT DELAY IN ISSUANCE OF A TKOF CLRNC FOR THE HEAVY AND THAT ACFT SLOW RESPONSE TO START ROLLING, WE INFORMED TWR THAT WE WERE INITIATING A GAR FROM 300 FT DUE TO LACK OF SAFE SEPARATION. WE WERE SUBSEQUENTLY CLRED BACK FOR A VISUAL TO RWY 9R AFTER THE GAR.

Data retrieved from NASA's ASRS site as of July 2007 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.