A sf-340 flight crew reported electrical anomalies shortly after takeoff; including a burning smell ...

Narrative:

Upon completion of the after takeoff checklist [we] observed erroneous warnings and status lights on instrument panel. Indications included: left/H side very bright solid master warning; and left oil press cwp light; no chime or aural notification; very bright T/O inhibit (blue) light; right/H #2 pfd bright; [then] dim; and then extinguished; and also very erroneous cabin press cwp light; along with visual cues; experienced a very acrid burning electric/plastic smell in the flight deck. Verified engine instruments and cabin pressure indications normal and asked flight attendant to confirm the smell which she did immediately and urgently. Discussed situation with first officer and agreed emergency declaration necessary.at this point indications had changed to: master warning/master caution both sides dimly lit; all cwp lights dimly lit. First officer was in control of aircraft complying with all ATC instructions while I notified dispatch; flight attendant; and passengers of our emergency and intentions of returning to [departure airport]. Approach and landing phases of flight proceeded as normal; reviewing all applicable checklists and the landing was uneventful. Upon taxi off of the runway evaluated situation and due to lack of smoke; fumes; or any other hindrance proceeded to gate accompanied by arff and completed after landing checklist. Once parked shutdown engines and commenced shutdown checklist with no further incident; and upon visual inspection by arff and security of passengers ensured; canceled emergency with ground control.

Original NASA ASRS Text

Title: A SF-340 flight crew reported electrical anomalies shortly after takeoff; including a burning smell and abnormal indications. They declared an emergency and returned for a safe landing at departure airport.

Narrative: Upon completion of the after takeoff checklist [we] observed erroneous warnings and status lights on instrument panel. Indications included: L/H side very bright solid Master Warning; and L Oil Press CWP light; no chime or aural notification; very bright T/O inhibit (blue) light; R/H #2 PFD bright; [then] dim; and then extinguished; and also very erroneous cabin press CWP light; along with visual cues; experienced a very acrid burning electric/plastic smell in the flight deck. Verified engine instruments and cabin pressure indications normal and asked Flight Attendant to confirm the smell which she did immediately and urgently. Discussed situation with First Officer and agreed emergency declaration necessary.At this point indications had changed to: Master Warning/Master Caution both sides dimly lit; all CWP lights dimly lit. First Officer was in control of aircraft complying with all ATC instructions while I notified Dispatch; Flight Attendant; and passengers of our emergency and intentions of returning to [departure airport]. Approach and landing phases of flight proceeded as normal; reviewing all applicable checklists and the landing was uneventful. Upon taxi off of the runway evaluated situation and due to lack of smoke; fumes; or any other hindrance proceeded to gate accompanied by ARFF and completed after landing checklist. Once parked shutdown engines and commenced shutdown checklist with no further incident; and upon visual inspection by ARFF and security of passengers ensured; canceled emergency with Ground Control.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	982657
Time
Date	201112
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 2 Flight Crew Total 4000 Flight Crew Type 2000
Person 2
Function	First Officer Pilot Flying
Qualification	Flight Crew Commercial
Experience	Flight Crew Last 90 Days 23 Flight Crew Total 3200 Flight Crew Type 930
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

A sf-340 flight crew reported electrical anomalies shortly after takeoff; including a burning smell and abnormal indications. They declared an emergency and returned for a safe landing at departure airport.