Super MD80 inbound to dfw is reported 4 mi off course. Suspect passenger electronics interference.

Attributes
ACN	363285
Time
Date	199703
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dfw
State Reference	TX
Altitude	msl bound lower : 11000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dfw
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other descent other
Route In Use	arrival star : star
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	363285
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	363286
Events
Anomaly	non adherence : published procedure non adherence : clearance other anomaly other other spatial deviation
Independent Detector	other controllera
Resolutory Action	flight crew : returned to intended course or assigned course other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

CDI oscillation, on course ATC showed 4 mi. Passenger electronics?

Original NASA ASRS Text

Title: SUPER MD80 INBOUND TO DFW IS RPTED 4 MI OFF COURSE. SUSPECT PAX ELECTRONICS INTERFERENCE.

Narrative: CDI OSCILLATION, ON COURSE ATC SHOWED 4 MI. PAX ELECTRONICS?

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.