A BE24 pilot, en route at 8000 ft, encountered electrical problems which produced smoke in the cockp...

Attributes
ACN	552118
Time
Date	200206
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : flo.vortac
State Reference	SC
Altitude	msl single value : 8000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Sierra 24
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 150 flight time total : 2000 flight time type : 50
ASRS Report	552118
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly
Independent Detector	aircraft equipment other aircraft equipment : nav indications altimeter other flight crewa
Resolutory Action	controller : provided flight assist flight crew : declared emergency flight crew : landed in emergency condition
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

IFR en route at 8000 ft MSL on V56. Observed erratic navigation indications, 30 amp discharge on ammeter. Reset alternator, initially observed full-scale change on a meter. Followed +/- 30 seconds later by full-scale discharge, accompanied by electrical smoke in cockpit. Declared emergency with shaw approach (not sure if radio was transmitting). Descended on airway to 6000 ft, sms in sight. Secured battery and altitude switches, manually deployed landing gear, briefly turned on battery to verify landing gear down and locked, then secured battery for remainder of descent and landing. Landed without further incident. Smoke cleared on descent. Called anderson FSS when aircraft secured. They relayed IFR cancellation to shaw AFB approach. No injuries to either person aboard.

Original NASA ASRS Text

Title: A BE24 PLT, ENRTE AT 8000 FT, ENCOUNTERED ELECTRICAL PROBS WHICH PRODUCED SMOKE IN THE COCKPIT.

Narrative: IFR ENRTE AT 8000 FT MSL ON V56. OBSERVED ERRATIC NAV INDICATIONS, 30 AMP DISCHARGE ON AMMETER. RESET ALTERNATOR, INITIALLY OBSERVED FULL-SCALE CHANGE ON A METER. FOLLOWED +/- 30 SECONDS LATER BY FULL-SCALE DISCHARGE, ACCOMPANIED BY ELECTRICAL SMOKE IN COCKPIT. DECLARED EMER WITH SHAW APCH (NOT SURE IF RADIO WAS XMITTING). DESCENDED ON AIRWAY TO 6000 FT, SMS IN SIGHT. SECURED BATTERY AND ALT SWITCHES, MANUALLY DEPLOYED LNDG GEAR, BRIEFLY TURNED ON BATTERY TO VERIFY LNDG GEAR DOWN AND LOCKED, THEN SECURED BATTERY FOR REMAINDER OF DSCNT AND LNDG. LANDED WITHOUT FURTHER INCIDENT. SMOKE CLRED ON DSCNT. CALLED ANDERSON FSS WHEN ACFT SECURED. THEY RELAYED IFR CANCELLATION TO SHAW AFB APCH. NO INJURIES TO EITHER PERSON ABOARD.

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.

A BE24 pilot, en route at 8000 ft, encountered electrical problems which produced smoke in the cockpit.