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Tower controller claims that ASOS reported clear skies for 2 hours when the actual conditions was 3800 ft overcast with snow.
| Attributes | |
| ACN | 351780 |
| Time | |
| Date | 199611 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : pia |
| State Reference | IL |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : pia |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Experience | controller military : 3 controller radar : 6 |
| ASRS Report | 351780 |
| 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:
ASOS celiometer failed, and WX reported clear skies for nearly 2 hours with actual conditions 3800 ft overcast and light snow.
Original NASA ASRS Text
Title: TWR CTLR CLAIMS THAT ASOS RPTED CLR SKIES FOR 2 HRS WHEN THE ACTUAL CONDITIONS WAS 3800 FT OVCST WITH SNOW.
Narrative: ASOS CELIOMETER FAILED, AND WX RPTED CLR SKIES FOR NEARLY 2 HRS WITH ACTUAL CONDITIONS 3800 FT OVCST AND LIGHT SNOW.
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.