A B190 crew upon lowering the gear, did not receive the down and locked indication, diverted and extended the gear manually.

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Attributes
ACN	519570
Time
Date	200107
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mgw.airport
State Reference	WV
Environment
Flight Conditions	IMC
Light	Dawn
Aircraft 1
Controlling Facilities	tracon : pit.tracon
Operator	common carrier : air taxi
Make Model Name	Beech 1900
Operating Under FAR Part	Part 135
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air taxi
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 200 flight time total : 4127 flight time type : 1465
ASRS Report	519570
Person 2
Affiliation	company : air taxi
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine pilot : private
Experience	flight time last 90 days : 100 flight time total : 310 flight time type : 110
ASRS Report	519567
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : gear down annun other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : diverted to another airport other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Gear down and locked annunciator failed to illuminate. We attempted to change annunciators to verify burned out bulb. As a result, all 3 annunciators failed. Horn system and gear in transit light indicated gear down and locked. As a precaution, we declared an emergency and diverted to pit. I performed a manual extension of the gear. We landed without incident and taxied in to gate. We deplaned our passenger and had gear pinned as soon as maintenance could arrive. Supplemental information from acn 519567: we landed with no incident. Then the captain taxied to the gate with no incident and the passenger were deplaned with no injuries.

Original NASA ASRS Text

Title: A B190 CREW UPON LOWERING THE GEAR, DID NOT RECEIVE THE DOWN AND LOCKED INDICATION, DIVERTED AND EXTENDED THE GEAR MANUALLY.

Narrative: GEAR DOWN AND LOCKED ANNUNCIATOR FAILED TO ILLUMINATE. WE ATTEMPTED TO CHANGE ANNUNCIATORS TO VERIFY BURNED OUT BULB. AS A RESULT, ALL 3 ANNUNCIATORS FAILED. HORN SYS AND GEAR IN TRANSIT LIGHT INDICATED GEAR DOWN AND LOCKED. AS A PRECAUTION, WE DECLARED AN EMER AND DIVERTED TO PIT. I PERFORMED A MANUAL EXTENSION OF THE GEAR. WE LANDED WITHOUT INCIDENT AND TAXIED IN TO GATE. WE DEPLANED OUR PAX AND HAD GEAR PINNED AS SOON AS MAINT COULD ARRIVE. SUPPLEMENTAL INFO FROM ACN 519567: WE LANDED WITH NO INCIDENT. THEN THE CAPT TAXIED TO THE GATE WITH NO INCIDENT AND THE PAX WERE DEPLANED WITH NO 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.