Medium large transport has gear door open light activate in flight.

Attributes
ACN	269868
Time
Date	199404
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw
State Reference	MI
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : twr tracon : atl
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise other descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 120 flight time total : 7300 flight time type : 2300
ASRS Report	269868
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Gear door open light came on during cruise. Communication procedures followed. Per maintenance continued to dtw. Light brilliance varied and would go out briefly in turbulent air: suspected bad switch. Figuring light would remain on with gear extension, consulted with maintenance as to whether or not they preferred to float doors or not. They did so. We followed communication and landed with good gear down indications except gear door open light remained on. Emergency gear extend lever pulled for landing and maximum stopping executed. Requested airport emergency assistance. Landing made without incident and maintenance secured gear and doors on the runway 27R.

Original NASA ASRS Text

Title: MLG HAS GEAR DOOR OPEN LIGHT ACTIVATE IN FLT.

Narrative: GEAR DOOR OPEN LIGHT CAME ON DURING CRUISE. COM PROCS FOLLOWED. PER MAINT CONTINUED TO DTW. LIGHT BRILLIANCE VARIED AND WOULD GO OUT BRIEFLY IN TURBULENT AIR: SUSPECTED BAD SWITCH. FIGURING LIGHT WOULD REMAIN ON WITH GEAR EXTENSION, CONSULTED WITH MAINT AS TO WHETHER OR NOT THEY PREFERRED TO FLOAT DOORS OR NOT. THEY DID SO. WE FOLLOWED COM AND LANDED WITH GOOD GEAR DOWN INDICATIONS EXCEPT GEAR DOOR OPEN LIGHT REMAINED ON. EMER GEAR EXTEND LEVER PULLED FOR LNDG AND MAX STOPPING EXECUTED. REQUESTED ARPT EMER ASSISTANCE. LNDG MADE WITHOUT INCIDENT AND MAINT SECURED GEAR AND DOORS ON THE RWY 27R.

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.