BE20 crew had communication failure after departing jqf.

Attributes
ACN	531579
Time
Date	200111
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : jqf.airport
State Reference	NC
Altitude	msl bound lower : 5000 msl bound upper : 7000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : clt.tracon
Operator	general aviation : personal
Make Model Name	Super King Air 200/Huron
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	departure : on vectors
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : multi engine pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 80 flight time total : 6157 flight time type : 813
ASRS Report	531579
Person 2
Affiliation	other
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : declared emergency flight crew : diverted to another airport flight crew : landed in emergency condition other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Clearance and takeoff clearance given by tower at jqf (concord regional). Initial contact with approach was alright. After this, we (crew) could hear, but no xmissions were being emitted. Several approach xmissions were acknowledged by squawk of transponder. The crew squawked 7600 and returned to jqf under VMC and being cleared by approach and jqf tower for landing. On occasions, a crew of other aircraft said to approach that we were attempting to contact them. Avionics personnel determined that 1 radio was responsible for the problem. The crew had tried every combination in cockpit in an effort to communicate -- even changing to oxygen masks! Lesson: carry a handheld in even 'big iron' aircraft!

Original NASA ASRS Text

Title: BE20 CREW HAD COM FAILURE AFTER DEPARTING JQF.

Narrative: CLRNC AND TKOF CLRNC GIVEN BY TWR AT JQF (CONCORD REGIONAL). INITIAL CONTACT WITH APCH WAS ALRIGHT. AFTER THIS, WE (CREW) COULD HEAR, BUT NO XMISSIONS WERE BEING EMITTED. SEVERAL APCH XMISSIONS WERE ACKNOWLEDGED BY SQUAWK OF XPONDER. THE CREW SQUAWKED 7600 AND RETURNED TO JQF UNDER VMC AND BEING CLRED BY APCH AND JQF TWR FOR LNDG. ON OCCASIONS, A CREW OF OTHER ACFT SAID TO APCH THAT WE WERE ATTEMPTING TO CONTACT THEM. AVIONICS PERSONNEL DETERMINED THAT 1 RADIO WAS RESPONSIBLE FOR THE PROB. THE CREW HAD TRIED EVERY COMBINATION IN COCKPIT IN AN EFFORT TO COMMUNICATE -- EVEN CHANGING TO OXYGEN MASKS! LESSON: CARRY A HANDHELD IN EVEN 'BIG IRON' ACFT!

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.