<< >> NASA ASRS Report 703675, July 2006

MD80 crew get unsafe gear upon extension and declares an emergency. After troubleshooting they land uneventfully.

Attributes
ACN	703675
Time
Date	200607
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 2000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	703675
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	703676
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition flight crew : executed go around
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On final approach when we lowered the landing gear; we received sustained 4 red lights. We initiated an easy go around and had the tower check our gear as we flew down the runway. We began an extended downwind and started running the appropriate checklists and contacting the appropriate agencies (maintenance; dispatch; etc). We confirmed the nose gear was down by the raised indicator in the flight deck. We determined we had fuel and time for myself to enter the cabin and determine the main gear were down and locked via the periscope in back. We also had several flts visually check our gear as they passed us by in-flight. The red lights never turned to green; but we were as sure as we could be that the gear was all down and locked. As a precaution we had the flight attendants prepare for an emergency landing. We commenced an ILS approach to runway and we landed successfully. We stopped the aircraft on the runway and had maintenance pin the gear and tow us clear.

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Original NASA ASRS Text

Title: MD80 CREW GET UNSAFE GEAR UPON EXTENSION AND DECLARES AN EMER. AFTER TROUBLESHOOTING THEY LAND UNEVENTFULLY.

Narrative: ON FINAL APCH WHEN WE LOWERED THE LNDG GEAR; WE RECEIVED SUSTAINED 4 RED LIGHTS. WE INITIATED AN EASY GAR AND HAD THE TWR CHK OUR GEAR AS WE FLEW DOWN THE RWY. WE BEGAN AN EXTENDED DOWNWIND AND STARTED RUNNING THE APPROPRIATE CHKLISTS AND CONTACTING THE APPROPRIATE AGENCIES (MAINT; DISPATCH; ETC). WE CONFIRMED THE NOSE GEAR WAS DOWN BY THE RAISED INDICATOR IN THE FLT DECK. WE DETERMINED WE HAD FUEL AND TIME FOR MYSELF TO ENTER THE CABIN AND DETERMINE THE MAIN GEAR WERE DOWN AND LOCKED VIA THE PERISCOPE IN BACK. WE ALSO HAD SEVERAL FLTS VISUALLY CHK OUR GEAR AS THEY PASSED US BY INFLT. THE RED LIGHTS NEVER TURNED TO GREEN; BUT WE WERE AS SURE AS WE COULD BE THAT THE GEAR WAS ALL DOWN AND LOCKED. AS A PRECAUTION WE HAD THE FLT ATTENDANTS PREPARE FOR AN EMER LNDG. WE COMMENCED AN ILS APCH TO RWY AND WE LANDED SUCCESSFULLY. WE STOPPED THE ACFT ON THE RWY AND HAD MAINT PIN THE GEAR AND TOW US CLR.

Data retrieved from NASA's ASRS site as of January 2009 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.