Commuter dispatcher notes apparent unreliability and erroneous navigation information of nassau VOR ...

Attributes
ACN	210120
Time
Date	199203
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zqa airport : nas
State Reference	FO
Altitude	msl bound lower : 12000 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Route In Use	enroute airway : br49v enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel
Qualification	other
ASRS Report	210120
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other spatial deviation
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

Captain was advised that following mynn (nassau), VOR departure along route BR49V takes flight off route 5 NM although navigation system in aircraft indicates in route. Nassau vors seem to be consistently unreliable. Flight is filed for 12000 ft en route altitude under block flight plans, and crew did not claim traffic conflict, nor was there any conflict stated by ATC. Callback conversation with reporter revealed the following information: callback conversation with reporter revealed that complaints that zqa VOR is frequently notamed 'not operable' and 'unreliable' continue. He is concerned that a traffic conflict may ensue from this NAVAID unreliability. The reporter additionally alleges that WX reporting in the bahamas is often erroneous. His company uses miami as an alternate on fl to nassau flts rather than risk use of an alternate where WX reporting is constantly suspect.

Original NASA ASRS Text

Title: COMMUTER DISPATCHER NOTES APPARENT UNRELIABILITY AND ERRONEOUS NAV INFO OF NASSAU VOR (ZQA).

Narrative: CAPT WAS ADVISED THAT FOLLOWING MYNN (NASSAU), VOR DEP ALONG RTE BR49V TAKES FLT OFF RTE 5 NM ALTHOUGH NAV SYS IN ACFT INDICATES IN RTE. NASSAU VORS SEEM TO BE CONSISTENTLY UNRELIABLE. FLT IS FILED FOR 12000 FT ENRTE ALT UNDER BLOCK FLT PLANS, AND CREW DID NOT CLAIM TFC CONFLICT, NOR WAS THERE ANY CONFLICT STATED BY ATC. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: CALLBACK CONVERSATION WITH RPTR REVEALED THAT COMPLAINTS THAT ZQA VOR IS FREQUENTLY NOTAMED 'NOT OPERABLE' AND 'UNRELIABLE' CONTINUE. HE IS CONCERNED THAT A TFC CONFLICT MAY ENSUE FROM THIS NAVAID UNRELIABILITY. THE RPTR ADDITIONALLY ALLEGES THAT WX RPTING IN THE BAHAMAS IS OFTEN ERRONEOUS. HIS COMPANY USES MIAMI AS AN ALTERNATE ON FL TO NASSAU FLTS RATHER THAN RISK USE OF AN ALTERNATE WHERE WX RPTING IS CONSTANTLY SUSPECT.

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.

Commuter dispatcher notes apparent unreliability and erroneous navigation information of nassau VOR (zqa).