Air carrier on approach has malfunctioning gear. Divert land.

Attributes
ACN	239778
Time
Date	199304
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mht
State Reference	NH
Altitude	msl bound lower : 2150 msl bound upper : 2150
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mht tower : atw
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	descent : approach landing : go around other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 135 flight time total : 18765 flight time type : 2065
ASRS Report	239778
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

During approach to manchester, nh, after landing gear was extended, the left main gear indication was that the gear was not down and locked. After performing the abnormal procedure and still not getting a safe gear indication, we diverted to kbos where an uneventful landing was accomplished.

Original NASA ASRS Text

Title: ACR ON APCH HAS MALFUNCTIONING GEAR. DIVERT LAND.

Narrative: DURING APCH TO MANCHESTER, NH, AFTER LNDG GEAR WAS EXTENDED, THE L MAIN GEAR INDICATION WAS THAT THE GEAR WAS NOT DOWN AND LOCKED. AFTER PERFORMING THE ABNORMAL PROC AND STILL NOT GETTING A SAFE GEAR INDICATION, WE DIVERTED TO KBOS WHERE AN UNEVENTFUL LNDG WAS ACCOMPLISHED.

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.