Overlapping ATIS frequency.

Attributes
ACN	261786
Time
Date	199401
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : evv
State Reference	IN
Aircraft 1
Controlling Facilities	tower : luk
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller non radar : 2 controller radar : 1
ASRS Report	261786
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Navigational Facility
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

Someone at 'frequency management' decided it was a good idea to change evv's ATIS frequency from 120.2 to 120.25. Now pilots inbound from the east are unable to receive it because it is being blocked by luk's ATIS. Often, controllers must read the WX to these pilots, and there have been occurrences of pilots reported having an ATIS code that is not used at evv, but is used at luk. (The pilot believed he had evv's WX and terminal information when, in fact, it was the information for luk.) in the case where an unused code is reported, the problem can be recognized and corrected. But, if both evv and luk are using the same code, a pilot could land at evv with totally inaccurate information. Callback conversation with facility supervisor revealed the following information: evv facility supervisor was called to verify the problem. Supervisor said the problem existed, but has been corrected by changing evv ATIS back to the old frequency.

Original NASA ASRS Text

Title: OVERLAPPING ATIS FREQ.

Narrative: SOMEONE AT 'FREQ MGMNT' DECIDED IT WAS A GOOD IDEA TO CHANGE EVV'S ATIS FREQ FROM 120.2 TO 120.25. NOW PLTS INBOUND FROM THE E ARE UNABLE TO RECEIVE IT BECAUSE IT IS BEING BLOCKED BY LUK'S ATIS. OFTEN, CTLRS MUST READ THE WX TO THESE PLTS, AND THERE HAVE BEEN OCCURRENCES OF PLTS RPTED HAVING AN ATIS CODE THAT IS NOT USED AT EVV, BUT IS USED AT LUK. (THE PLT BELIEVED HE HAD EVV'S WX AND TERMINAL INFO WHEN, IN FACT, IT WAS THE INFO FOR LUK.) IN THE CASE WHERE AN UNUSED CODE IS RPTED, THE PROB CAN BE RECOGNIZED AND CORRECTED. BUT, IF BOTH EVV AND LUK ARE USING THE SAME CODE, A PLT COULD LAND AT EVV WITH TOTALLY INACCURATE INFO. CALLBACK CONVERSATION WITH FACILITY SUPVR REVEALED THE FOLLOWING INFO: EVV FACILITY SUPVR WAS CALLED TO VERIFY THE PROB. SUPVR SAID THE PROB EXISTED, BUT HAS BEEN CORRECTED BY CHANGING EVV ATIS BACK TO THE OLD FREQ.

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.