|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Locale Reference||atc facility : zzz|
|Function||instruction : instructor|
|Qualification||pilot : instrument|
pilot : commercial
pilot : cfi
|Experience||flight time last 90 days : 73|
flight time total : 2006
|Air Traffic Incident||other|
Located at the approximately coordinates listed above are 5 towers supporting various microwave radio-relay antenna. Two towers are located east of us highway 85 (site 1) and 3 towers are located west of the highway (site 2). One of the towers supports UHF antenna that appears to be part of an ATC radio-relay air-to-ground/telephone land-line interface point. These towers appear to be approximately 80-100' in ht and only 1 tower in each cluster has an operable red obstruction hazard light on its top. 2 of the somewhat shorter towers have what appears to be obstruction hazard lights on their tops but they are not operational. These towers do have, however, operating obstruction hazard lights at their midpoints. The last tower has no hazard warning lights at all. This situation has existed since at least 9/87 and I brought it to the attention of the casper FSS on about mid-10/87. These unlighted (or at least inadequately lighted) towers represent, in my judgement, a significant hazard to air navigation. They are situated on/very close to a major arwy (V19) on a ridge crest, and in an area in which a significant amount of flight training is conducted on a year round basis. In my judgement the simplest and most economical solution would be to return and maintain the installed lights to operational status and properly light the remaining tower.
Original NASA ASRS Text
Title: FBO PLT COMPLAINT ABOUT STATUS OF OBSTRUCTION LIGHTS HE CONSIDERS A HAZARD TO NAVIGATION.
Narrative: LOCATED AT THE APPROX COORDINATES LISTED ABOVE ARE 5 TWRS SUPPORTING VARIOUS MICROWAVE RADIO-RELAY ANTENNA. TWO TWRS ARE LOCATED E OF U.S. HWY 85 (SITE 1) AND 3 TWRS ARE LOCATED W OF THE HWY (SITE 2). ONE OF THE TWRS SUPPORTS UHF ANTENNA THAT APPEARS TO BE PART OF AN ATC RADIO-RELAY AIR-TO-GND/TELEPHONE LAND-LINE INTERFACE POINT. THESE TWRS APPEAR TO BE APPROX 80-100' IN HT AND ONLY 1 TWR IN EACH CLUSTER HAS AN OPERABLE RED OBSTRUCTION HAZARD LIGHT ON ITS TOP. 2 OF THE SOMEWHAT SHORTER TWRS HAVE WHAT APPEARS TO BE OBSTRUCTION HAZARD LIGHTS ON THEIR TOPS BUT THEY ARE NOT OPERATIONAL. THESE TWRS DO HAVE, HOWEVER, OPERATING OBSTRUCTION HAZARD LIGHTS AT THEIR MIDPOINTS. THE LAST TWR HAS NO HAZARD WARNING LIGHTS AT ALL. THIS SITUATION HAS EXISTED SINCE AT LEAST 9/87 AND I BROUGHT IT TO THE ATTN OF THE CASPER FSS ON ABOUT MID-10/87. THESE UNLIGHTED (OR AT LEAST INADEQUATELY LIGHTED) TWRS REPRESENT, IN MY JUDGEMENT, A SIGNIFICANT HAZARD TO AIR NAV. THEY ARE SITUATED ON/VERY CLOSE TO A MAJOR ARWY (V19) ON A RIDGE CREST, AND IN AN AREA IN WHICH A SIGNIFICANT AMOUNT OF FLT TRNING IS CONDUCTED ON A YEAR ROUND BASIS. IN MY JUDGEMENT THE SIMPLEST AND MOST ECONOMICAL SOLUTION WOULD BE TO RETURN AND MAINTAIN THE INSTALLED LIGHTS TO OPERATIONAL STATUS AND PROPERLY LIGHT THE REMAINING TWR.
Data retrieved from NASA's ASRS site as of August 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.