<< >> NASA ASRS Report 811502, November 2008

Mem controllers voiced concern regarding VOR outage during simultaneous approach operations that required individual issuance of alternate missed approach instructions.

Attributes
ACN	811502
Time
Date	200811
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : mem.tracon
State Reference	TN
Environment
Flight Conditions	IMC
Light	Daylight
Person 1
Affiliation	government : faa
Function	controller : approach controller : local
Qualification	controller : radar controller : non radar
Experience	controller non radar : 6.5 controller radar : 13 controller time certified in position1 : 5 controller time certified in position2 : 6
ASRS Report	811502
Person 2
Affiliation	government : faa
Function	controller : approach controller : local
Qualification	controller : radar
Experience	controller radar : 15 controller time certified in position1 : 5
ASRS Report	811768
Events
Anomaly	other anomaly other
Independent Detector	other controllera other controllerb
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Navigational Facility FAA
Primary Problem	Navigational Facility
Situations
ATC Facility	other physical facility procedure or policy : mem.tracon

Narrative:

I was final monitor for simultaneous ILS approachs to runways 18R and 18L. The mem VOR was OTS and the missed approach for the ILS runway 18R is based on the mem VOR. Arrival controllers had to issue alternate missed approach instructions to every aircraft. Supplemental information from acn 811768: during the noon inbound; simultaneous ILS's were being conducted to runways 18L/right. The mem VOR was OTS; therefore there was no missed approach procedure available and no alternate missed approach instructions were issued. On subsequent inbounds a NOTAM was issued describing alternate missed approach procedures. In addition arrival aircraft were issued these instructions.

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Original NASA ASRS Text

Title: MEM CONTROLLERS VOICED CONCERN REGARDING VOR OUTAGE DURING SIMULTANEOUS APPROACH OPERATIONS THAT REQUIRED INDIVIDUAL ISSUANCE OF ALTERNATE MISSED APPROACH INSTRUCTIONS.

Narrative: I WAS FINAL MONITOR FOR SIMULTANEOUS ILS APCHS TO RWYS 18R AND 18L. THE MEM VOR WAS OTS AND THE MISSED APCH FOR THE ILS RWY 18R IS BASED ON THE MEM VOR. ARR CTLRS HAD TO ISSUE ALTERNATE MISSED APCH INSTRUCTIONS TO EVERY ACFT. SUPPLEMENTAL INFO FROM ACN 811768: DURING THE NOON INBOUND; SIMULTANEOUS ILS'S WERE BEING CONDUCTED TO RWYS 18L/R. THE MEM VOR WAS OTS; THEREFORE THERE WAS NO MISSED APCH PROC AVAILABLE AND NO ALTERNATE MISSED APCH INSTRUCTIONS WERE ISSUED. ON SUBSEQUENT INBOUNDS A NOTAM WAS ISSUED DESCRIBING ALTERNATE MISSED APCH PROCS. IN ADDITION ARR ACFT WERE ISSUED THESE INSTRUCTIONS.

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.