<< >> NASA ASRS Report 256186, November 1993

Pilot of an small aircraft twin engine aircraft lost all aircraft electrical system during cruise on an IFR flight resulting in descending in VFR conditions and landing as soon as possible.

Attributes
ACN	256186
Time
Date	199311
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : cct airport : 2i0
State Reference	KY
Altitude	msl bound lower : 9000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : iah
Operator	common carrier : air taxi
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	cruise other
Route In Use	enroute airway : v178
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp pilot : cfi
Experience	flight time last 90 days : 60 flight time total : 7700 flight time type : 15
ASRS Report	256186
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Loss of electrical power (alternators, battery) 15 mins into flight. No indication of impending loss. IFR flight in VMC conditions. Emergency electrical procedures did not correct problem. Destination IFR, reversed course, descended to VFR cruise altitude and flew until around contact. Landed as soon as possible.

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Original NASA ASRS Text

Title: PLT OF AN SMA TWIN ENG ACFT LOST ALL ACFT ELECTRICAL SYS DURING CRUISE ON AN IFR FLT RESULTING IN DSNDING IN VFR CONDITIONS AND LNDG ASAP.

Narrative: LOSS OF ELECTRICAL PWR (ALTERNATORS, BATTERY) 15 MINS INTO FLT. NO INDICATION OF IMPENDING LOSS. IFR FLT IN VMC CONDITIONS. EMER ELECTRICAL PROCS DID NOT CORRECT PROB. DEST IFR, REVERSED COURSE, DSNDED TO VFR CRUISE ALT AND FLEW UNTIL AROUND CONTACT. LANDED ASAP.

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.