<< >> NASA ASRS Report 345099, August 1996

Inaccurate ASOS reporting.

Attributes
ACN	345099
Time
Date	199608
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bdl
State Reference	CT
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bdl
Make Model Name	Super King Air 200 HDC
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Make Model Name	PA-34-200 Seneca I
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller radar : 8
ASRS Report	345099
Person 2
Function	flight crew : single pilot
Events
Anomaly	other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Air Traffic Incident	other
Situations
ATC Facility	other physical facility

Narrative:

ASOS WX reporting: metar XX51Z, 10 SM, scattered 7000 ft, scattered 8500 ft, 20 degrees/dewpoint 17 degrees, altimeter 30.15. BE02 on final ILS 24 reported airport in sight at 5.5 DME. PA34 10 mi southwest airport reported flight visibility 4-5 mi. B727 reported 'no definite layers just a thick layer of haze restricting visibility.' this appears to be an ongoing problem with the ASOS system frequently reporting WX conditions which are not indicative of current conditions. Numerous remarks from pilots stating that WX conditions are much less than those being reported.

Related reports:

• Inaccurate ASOS reporting.
• WX reporting equipment problem ASOS inaccurate WX report.
• WX reporting equipment ASOS inaccurate WX reported air carri...
• Inaccurate WX reporting by ASOS.
• WX reporting equipment problem ASOS inaccurate WX report.
• WX reporting equipment ASOS reported inaccurate WX.

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: INACCURATE ASOS RPTING.

Narrative: ASOS WX RPTING: METAR XX51Z, 10 SM, SCATTERED 7000 FT, SCATTERED 8500 FT, 20 DEGS/DEWPOINT 17 DEGS, ALTIMETER 30.15. BE02 ON FINAL ILS 24 RPTED ARPT IN SIGHT AT 5.5 DME. PA34 10 MI SW ARPT RPTED FLT VISIBILITY 4-5 MI. B727 RPTED 'NO DEFINITE LAYERS JUST A THICK LAYER OF HAZE RESTRICTING VISIBILITY.' THIS APPEARS TO BE AN ONGOING PROB WITH THE ASOS SYS FREQUENTLY RPTING WX CONDITIONS WHICH ARE NOT INDICATIVE OF CURRENT CONDITIONS. NUMEROUS REMARKS FROM PLTS STATING THAT WX CONDITIONS ARE MUCH LESS THAN THOSE BEING RPTED.

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.