Air carrier large transport problem receiving clearance due to radio interference.

Attributes
ACN	92606
Time
Date	198808
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : rbv
State Reference	NJ
Altitude	msl bound lower : 11000 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	descent other
Route In Use	arrival star : star enroute airway : zdc
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 7000 flight time type : 700
ASRS Report	92606
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

During the warrd 2 arrival, communications with ZDC on 132.05 were consistently blocked by an unknown. Anytime the center controller would say, 'air carrier a XXX,' interference began making compliance with instructions very difficult, however knowing expected clearance and portions of xmissions allowed compliance with ATC instructions. Only air carrier a xmissions were being blocked. Although difficult to determine who/what, it is an excellent reminder that often the challenges in flying are manmade!

Original NASA ASRS Text

Title: ACR LGT PROBLEM RECEIVING CLRNC DUE TO RADIO INTERFERENCE.

Narrative: DURING THE WARRD 2 ARR, COMS WITH ZDC ON 132.05 WERE CONSISTENTLY BLOCKED BY AN UNKNOWN. ANYTIME THE CENTER CTLR WOULD SAY, 'ACR A XXX,' INTERFERENCE BEGAN MAKING COMPLIANCE WITH INSTRUCTIONS VERY DIFFICULT, HOWEVER KNOWING EXPECTED CLRNC AND PORTIONS OF XMISSIONS ALLOWED COMPLIANCE WITH ATC INSTRUCTIONS. ONLY ACR A XMISSIONS WERE BEING BLOCKED. ALTHOUGH DIFFICULT TO DETERMINE WHO/WHAT, IT IS AN EXCELLENT REMINDER THAT OFTEN THE CHALLENGES IN FLYING ARE MANMADE!

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.