A C182 training flight has communication problems with approach controller due to an unknown ground operator on frequency 134.7 using a handheld radio and identing self with same aircraft call sign, 5 NM from ric, va.

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Attributes
ACN	575072
Time
Date	200303
Day	Sat
Local Time Of Day	0601 To 1200
Place
State Reference	VA
Altitude	msl single value : 2000
Environment
Flight Conditions	IMC
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 121
Navigation In Use	ils localizer & glide slope : i-ezd
Flight Phase	descent : approach
Route In Use	approach : instrument precision arrival : on vectors
Flight Plan	IFR
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : multi engine
Experience	flight time last 90 days : 60 flight time total : 3000 flight time type : 400
ASRS Report	575072
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	aircraft equipment problem : less severe non adherence : far other anomaly other
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory
Consequence	faa : reviewed incident with flight crew
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance ATC Human Performance ATC Facility
Primary Problem	Environmental Factor

Narrative:

On practice instrument approachs in richmond area. Being radar vectored to ILS runway approach at ric. Communication with pct/ric approach on frequency 134.7. Individual started communicating on frequency 134.7 using our call sign. Confusion resulted as to whether this was ATC or someone else on frequency. Apparently someone on ground with handheld was on frequency. Approach questioned problems with communications. Our concern is if a terrorist (or other) had a strong transmitter, he could cause significant problems, especially in high density airports. We had no safety issues with flight. Just concerned about potential. Terrorist might not need to be in plane.

Original NASA ASRS Text

Title: A C182 TRAINING FLT HAS COM PROBS WITH APCH CTLR DUE TO AN UNKNOWN GND OPERATOR ON FREQ 134.7 USING A HANDHELD RADIO AND IDENTING SELF WITH SAME ACFT CALL SIGN, 5 NM FROM RIC, VA.

Narrative: ON PRACTICE INST APCHS IN RICHMOND AREA. BEING RADAR VECTORED TO ILS RWY APCH AT RIC. COM WITH PCT/RIC APCH ON FREQ 134.7. INDIVIDUAL STARTED COMMUNICATING ON FREQ 134.7 USING OUR CALL SIGN. CONFUSION RESULTED AS TO WHETHER THIS WAS ATC OR SOMEONE ELSE ON FREQ. APPARENTLY SOMEONE ON GND WITH HANDHELD WAS ON FREQ. APCH QUESTIONED PROBS WITH COMS. OUR CONCERN IS IF A TERRORIST (OR OTHER) HAD A STRONG XMITTER, HE COULD CAUSE SIGNIFICANT PROBS, ESPECIALLY IN HIGH DENSITY ARPTS. WE HAD NO SAFETY ISSUES WITH FLT. JUST CONCERNED ABOUT POTENTIAL. TERRORIST MIGHT NOT NEED TO BE IN PLANE.

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.