<< >> NASA ASRS Report 576147, February 2003

MD88 crew has static on the #1 VHF communication radio. The static stopped when the passenger were directed to turn off their electronic devices.

Attributes
ACN	576147
Time
Date	200302
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : iiu.vortac
State Reference	KY
Altitude	msl single value : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : flight engineer pilot : instrument pilot : multi engine pilot : commercial
Experience	flight time last 90 days : 256 flight time total : 10000 flight time type : 250
ASRS Report	576147
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : less severe cabin event : passenger electronic device
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : overcame equipment problem other
Supplementary
Problem Areas	FAA Aircraft
Primary Problem	Aircraft

Narrative:

#1 communication radio began picking up static in cruise. We advised center of possible hot microphone on frequency, we could hear center xmissions, but static always returned afterwards. No other aircraft reported problems, and no problems occurred with communication 2. Decided to ask passenger to turn off all ped's. Static ceased immediately and did not occur again on this or next flight. Suspect ped problem.

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Original NASA ASRS Text

Title: MD88 CREW HAS STATIC ON THE #1 VHF COM RADIO. THE STATIC STOPPED WHEN THE PAX WERE DIRECTED TO TURN OFF THEIR ELECTRONIC DEVICES.

Narrative: #1 COM RADIO BEGAN PICKING UP STATIC IN CRUISE. WE ADVISED CTR OF POSSIBLE HOT MIKE ON FREQ, WE COULD HEAR CTR XMISSIONS, BUT STATIC ALWAYS RETURNED AFTERWARDS. NO OTHER ACFT RPTED PROBS, AND NO PROBS OCCURRED WITH COM 2. DECIDED TO ASK PAX TO TURN OFF ALL PED'S. STATIC CEASED IMMEDIATELY AND DID NOT OCCUR AGAIN ON THIS OR NEXT FLT. SUSPECT PED PROB.

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.