New WX equipment installed at airport allegedly gives erroneous information.

Attributes
ACN	225779
Time
Date	199210
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : okc
State Reference	OK
Altitude	agl bound lower : 0 agl bound upper : 0
Aircraft 1
Controlling Facilities	tracon : okc
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 10
ASRS Report	225779
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
Navigational Aid	Unspecified

Narrative:

ASOS equipment installed at okc. The equipment constantly gives erroneous WX readings. On oct/tue/92 it showed visibility 3 1/2. Actual visibility was 20 or more. This hindered ATC operations. We were required to do additional things since the visibility was low.

Original NASA ASRS Text

Title: NEW WX EQUIP INSTALLED AT ARPT ALLEGEDLY GIVES ERRONEOUS INFO.

Narrative: ASOS EQUIP INSTALLED AT OKC. THE EQUIP CONSTANTLY GIVES ERRONEOUS WX READINGS. ON OCT/TUE/92 IT SHOWED VISIBILITY 3 1/2. ACTUAL VISIBILITY WAS 20 OR MORE. THIS HINDERED ATC OPS. WE WERE REQUIRED TO DO ADDITIONAL THINGS SINCE THE VISIBILITY WAS LOW.

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.