<< >> NASA ASRS Report 873195, February 2010

Stl tower controller described multiple go around events claiming approach control in-trail spacing was inadequate.

Attributes
ACN	873195
Time
Date	201002
Local Time Of Day	1801-2400
Place
Locale Reference	STL.Tower
State Reference	MO
Aircraft 1
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Final Approach
Route In Use	Other Instrument Approach
Flight Plan	IFR
Person 1
Function	Local
Qualification	Air Traffic Control Fully Certified
Person 2
Function	Local
Qualification	Air Traffic Control Fully Certified
Events
Anomaly	ATC Issue All Types Deviation - Procedural Published Material / Policy

Narrative:

Three air carrier aircraft had to have approach canceled for collapsing spacing on final. Additionally; breaking action advisories were in effect for the landing runway due to snow and conditions were deteriorating. Approach control was advised of the need for more spacing on final but did not provide it. There were subsequent missed approaches for decreasing separation after I was relieved. Recommendation; a proper response to a call for increased spacing would be to provide it; to avoid a situation where the collapse rate on final would prohibit multiple subsequent approaches from being able to be completed. It would seem to be more efficient than working the aircraft involved twice.

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Original NASA ASRS Text

Title: STL Tower Controller described multiple go around events claiming approach control in-trail spacing was inadequate.

Narrative: Three air carrier aircraft had to have approach canceled for collapsing spacing on final. Additionally; breaking action advisories were in effect for the landing runway due to snow and conditions were deteriorating. Approach Control was advised of the need for more spacing on final but did not provide it. There were subsequent missed approaches for decreasing separation after I was relieved. Recommendation; a proper response to a call for increased spacing would be to provide it; to avoid a situation where the collapse rate on final would prohibit multiple subsequent approaches from being able to be completed. It would seem to be more efficient than working the aircraft involved twice.

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.