An SA26 pilot on a maintenance flight lost power to his essential bus, requiring a manual gear exten...

Attributes
ACN	480320
Time
Date	200007
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : tol.airport
State Reference	OH
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : tol.tower tracon : cyyz.tracon
Operator	common carrier : air carrier
Make Model Name	SA-226 TC Metro II
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	approach : visual
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial
Experience	flight time last 90 days : 120 flight time total : 3900 flight time type : 500
ASRS Report	480320
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

We were completing a flight test on the nts system on left engine. I pressed the start button to restart and blew a current limiter, causing the left essential bus to fail. We returned to land. Received clearance to land and placed gear down. We had to emergency extend the gear. Not getting a down and locked indication, we did a fly-by to verify. With no possible way to go around, we declared an emergency and landed on opposite runway. No accident or injuries.

Original NASA ASRS Text

Title: AN SA26 PLT ON A MAINT FLT LOST PWR TO HIS ESSENTIAL BUS, REQUIRING A MANUAL GEAR EXTENSION.

Narrative: WE WERE COMPLETING A FLT TEST ON THE NTS SYS ON L ENG. I PRESSED THE START BUTTON TO RESTART AND BLEW A CURRENT LIMITER, CAUSING THE L ESSENTIAL BUS TO FAIL. WE RETURNED TO LAND. RECEIVED CLRNC TO LAND AND PLACED GEAR DOWN. WE HAD TO EMER EXTEND THE GEAR. NOT GETTING A DOWN AND LOCKED INDICATION, WE DID A FLY-BY TO VERIFY. WITH NO POSSIBLE WAY TO GO AROUND, WE DECLARED AN EMER AND LANDED ON OPPOSITE RWY. NO ACCIDENT OR INJURIES.

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.

An SA26 pilot on a maintenance flight lost power to his essential bus, requiring a manual gear extension.