Medium large transport left main gear fails to extend using normal system, but extended normally usi...

Attributes
ACN	145481
Time
Date	199005
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga
State Reference	NY
Altitude	msl bound lower : 2000 msl bound upper : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lga tower : bwi
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach landing : go around other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : atp pilot : cfi
Experience	flight time last 90 days : 40 flight time total : 4000 flight time type : 40
ASRS Report	145481
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

The flight and approach to runway 22 proceeded normally in visual conditions. On approximately a 7 mi final captain called for 'gear down--final landing check.' I proceeded to lower the landing gear and continued with the final landing checklist. Light indications on the INS panel were green for the right main and nose gear with on light for the left main gear and no red gear unsafe lights illuminated. I informed the lga tower that we were going around to work on our gear problem. We were issued and accepted a clearance to turn left and proceed to carmel. En route we changed light bulbs, recycled the gear and executed landing gear abnormal procedures all west/O success as indicated by the same light indications previously mentioned. Upon arrival at carmel, we executed the emergency gear extension procedure as per the air carrier handbook and then received normal landing gear down indications. We then proceeded back to lga and made a normal approach and landing. After our arrival at the gate, captain made a log book entry and briefed air carrier maintenance, who then proceeded to make appropriate repairs.

Original NASA ASRS Text

Title: MLG LEFT MAIN GEAR FAILS TO EXTEND USING NORMAL SYSTEM, BUT EXTENDED NORMALLY USING EMERGENCY GEAR EXTENSION PROC.

Narrative: THE FLT AND APCH TO RWY 22 PROCEEDED NORMALLY IN VISUAL CONDITIONS. ON APPROX A 7 MI FINAL CAPT CALLED FOR 'GEAR DOWN--FINAL LNDG CHK.' I PROCEEDED TO LOWER THE LNDG GEAR AND CONTINUED WITH THE FINAL LNDG CHKLIST. LIGHT INDICATIONS ON THE INS PANEL WERE GREEN FOR THE RIGHT MAIN AND NOSE GEAR WITH ON LIGHT FOR THE LEFT MAIN GEAR AND NO RED GEAR UNSAFE LIGHTS ILLUMINATED. I INFORMED THE LGA TWR THAT WE WERE GOING AROUND TO WORK ON OUR GEAR PROB. WE WERE ISSUED AND ACCEPTED A CLRNC TO TURN LEFT AND PROCEED TO CARMEL. ENRTE WE CHANGED LIGHT BULBS, RECYCLED THE GEAR AND EXECUTED LNDG GEAR ABNORMAL PROCS ALL W/O SUCCESS AS INDICATED BY THE SAME LIGHT INDICATIONS PREVIOUSLY MENTIONED. UPON ARR AT CARMEL, WE EXECUTED THE EMER GEAR EXTENSION PROC AS PER THE ACR HANDBOOK AND THEN RECEIVED NORMAL LNDG GEAR DOWN INDICATIONS. WE THEN PROCEEDED BACK TO LGA AND MADE A NORMAL APCH AND LNDG. AFTER OUR ARR AT THE GATE, CAPT MADE A LOG BOOK ENTRY AND BRIEFED ACR MAINT, WHO THEN PROCEEDED TO MAKE APPROPRIATE REPAIRS.

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.

Medium large transport left main gear fails to extend using normal system, but extended normally using emergency gear extension procedure.