Crj-700 flight crew reported flight instrument anomalies that cleared up when passengers were advise...

Attributes
ACN	1512544
Time
Date	201801
Local Time Of Day	1201-1800
Place
Locale Reference	C90.TRACON
State Reference	IL
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 700 ER/LR (CRJ700)
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	Flight Director
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Passenger Electronic Device Flight Deck / Cabin / Aircraft Event Passenger Misconduct

Narrative:

During turn after takeoff; flight director disagreed with heading bug. Subsequently primary flight directors began to disagree and ATC was queried for heading and winds aloft. Primary displays indicated winds from north at approximately 140 knots. ATC queried another aircraft near us and was told winds from the west at approximately 50 knots. Heading assistance was requested from ATC and flight director indicated a turn in opposite direction of heading bug selection. Passengers were told to stop using and turn off electronic devices. Shortly after that; we were able to navigate normally backed up by ATC assistance. Flight continued to destination. Cause: suspect extreme electronic device interference from one or more devices in cabin. Suggestions: better compliance from passengers with electronic devices.

Original NASA ASRS Text

Title: CRJ-700 flight crew reported flight instrument anomalies that cleared up when passengers were advised to turn off all electronic equipment.

Narrative: During turn after takeoff; flight director disagreed with heading bug. Subsequently primary flight directors began to disagree and ATC was queried for heading and winds aloft. Primary displays indicated winds from north at approximately 140 knots. ATC queried another aircraft near us and was told winds from the west at approximately 50 knots. Heading assistance was requested from ATC and flight director indicated a turn in opposite direction of heading bug selection. Passengers were told to stop using and turn off electronic devices. Shortly after that; we were able to navigate normally backed up by ATC assistance. Flight continued to destination. Cause: Suspect extreme electronic device interference from one or more devices in cabin. Suggestions: Better compliance from passengers with electronic devices.

Data retrieved from NASA's ASRS site 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.

Crj-700 flight crew reported flight instrument anomalies that cleared up when passengers were advised to turn off all electronic equipment.