An SR22 departing las experienced temporary communication failure.

Attributes
ACN	699776
Time
Date	200606
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : las.airport
State Reference	NV
Altitude	agl bound lower : 0 agl bound upper : 1000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	SR22
Operating Under FAR Part	Part 91
Navigation In Use	other
Route In Use	departure : vfr
Flight Plan	VFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 35 flight time total : 700 flight time type : 140
ASRS Report	699776
Person 2
Affiliation	government : faa
Function	controller : local
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	aircraft : equipment problem dissipated
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Aircraft Environmental Factor
Primary Problem	Ambiguous

Narrative:

I was cleared for takeoff on runway 19R at las with a VFR clearance. As I departed the runway; I received an extremely loud radio interference on both radios. It lasted for 60 seconds in which I could not hear anything. I switched radios and headsets but the noise continued. I announced to the tower that I had lost communications. The noise disappeared at 1000 ft and re-established communication with the tower. I was handed off to departure with no future problems. I called the tower supervisor (upon request) and stated what had happened. He mentioned that radio interference happens often on the field and that it could have been a sunspot or radio signals from the local casinos. The supervisor stated that no reports would be filed and wanted to hear my side of the event. I remained within 10 degrees of my assigned heading and remained below the assigned altitude. I feel that some type of electronic or radio interference was a result of the nearby casinos. Callback conversation with reporter revealed the following information: pilot indicated he has had no problems with this aircraft at any other airports; or at las on 4 other flts. He has flown other aircraft types into las without any interference issues. He believes it must be some external interference from sunspots or hotel/casino transmitters.

Original NASA ASRS Text

Title: AN SR22 DEPARTING LAS EXPERIENCED TEMPORARY COM FAILURE.

Narrative: I WAS CLRED FOR TKOF ON RWY 19R AT LAS WITH A VFR CLRNC. AS I DEPARTED THE RWY; I RECEIVED AN EXTREMELY LOUD RADIO INTERFERENCE ON BOTH RADIOS. IT LASTED FOR 60 SECONDS IN WHICH I COULD NOT HEAR ANYTHING. I SWITCHED RADIOS AND HEADSETS BUT THE NOISE CONTINUED. I ANNOUNCED TO THE TWR THAT I HAD LOST COMS. THE NOISE DISAPPEARED AT 1000 FT AND RE-ESTABLISHED COM WITH THE TWR. I WAS HANDED OFF TO DEP WITH NO FUTURE PROBS. I CALLED THE TWR SUPVR (UPON REQUEST) AND STATED WHAT HAD HAPPENED. HE MENTIONED THAT RADIO INTERFERENCE HAPPENS OFTEN ON THE FIELD AND THAT IT COULD HAVE BEEN A SUNSPOT OR RADIO SIGNALS FROM THE LCL CASINOS. THE SUPVR STATED THAT NO RPTS WOULD BE FILED AND WANTED TO HEAR MY SIDE OF THE EVENT. I REMAINED WITHIN 10 DEGS OF MY ASSIGNED HDG AND REMAINED BELOW THE ASSIGNED ALT. I FEEL THAT SOME TYPE OF ELECTRONIC OR RADIO INTERFERENCE WAS A RESULT OF THE NEARBY CASINOS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: PLT INDICATED HE HAS HAD NO PROBS WITH THIS ACFT AT ANY OTHER ARPTS; OR AT LAS ON 4 OTHER FLTS. HE HAS FLOWN OTHER ACFT TYPES INTO LAS WITHOUT ANY INTERFERENCE ISSUES. HE BELIEVES IT MUST BE SOME EXTERNAL INTERFERENCE FROM SUNSPOTS OR HOTEL/CASINO XMITTERS.

Data retrieved from NASA's ASRS site as of January 2009 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.