Air carrier medium large transport aircraft land with one main landing gear position indicator in the red or unsafe condition resulting in no apparent damage.

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Attributes
ACN	207528
Time
Date	199204
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mke
State Reference	WI
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Experience	flight time last 90 days : 180 flight time total : 6000 flight time type : 1200
ASRS Report	207528
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	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Gear indication problem: upon landing gear extension on medium large transport aircraft we got a right landing red unsafe light. The green down and locked did not illuminate. We followed company cockpit operating procedures. Depressurized cabin. I, first officer, went to look at down and locked through periscope in cabin. Visually verified right main landing gear was down and locked. Made normal approach and landing. No problem and taxied to gate.

Original NASA ASRS Text

Title: ACR MLG ACFT LAND WITH ONE MAIN LNDG GEAR POS INDICATOR IN THE RED OR UNSAFE CONDITION RESULTING IN NO APPARENT DAMAGE.

Narrative: GEAR INDICATION PROBLEM: UPON LNDG GEAR EXTENSION ON MLG ACFT WE GOT A R LNDG RED UNSAFE LIGHT. THE GREEN DOWN AND LOCKED DID NOT ILLUMINATE. WE FOLLOWED COMPANY COCKPIT OPERATING PROCS. DEPRESSURIZED CABIN. I, FO, WENT TO LOOK AT DOWN AND LOCKED THROUGH PERISCOPE IN CABIN. VISUALLY VERIFIED R MAIN LNDG GEAR WAS DOWN AND LOCKED. MADE NORMAL APCH AND LNDG. NO PROBLEM AND TAXIED TO GATE.

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.