Right main landing gear collapsed during landing of an light transport cpr jet.

Attributes
ACN	326252
Time
Date	199601
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : dtw
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : corporate
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument
Experience	flight time last 90 days : 78 flight time total : 11121 flight time type : 1330
ASRS Report	326252
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

The flight from pne to fnt was uneventful until the approach to fnt. On approach into fnt the landing gear was lowered. Indication was left main and nose gear green lights, right main red light with red light in the gear handle flashing. Hydraulic pressure and quantity was normal. Recycled gear up, retracted normally. Recycled gear down, same unsafe indications. Retracted gear and received vectors to dtw. At dtw requested landing on runway 3R due to winds. This would allow for touchdown on left main first. Prior to approach, we briefed the passenger and went over the checklist. Prior to the approach we tried 1 more normal extension, with same unsafe indications. Then ran the landing gear abnormal extension checklist. Left main and nose gear were green, right main was red and the red light in the handle was not flashing. Flaps extended to full. Unsilenceable landing gear warning horn sounded. Retracted flaps to 30 degrees and performed a tower fly-by. Tower indicated landing gear visual appeared normal. Returned to landing sequence. Lowered flaps to full, got unsilenceable horn. Right main indicator still red. Completed normal landing checklist. Touched down on left main then nose and when right wing was lowered, right gear collapsed. Aircraft stayed on centerline until rudder effectiveness was lost. At that point aircraft began to slide to the right and departed the runway sliding sideways and coming to a stop. Egressed aircraft with no complications. No injuries. Suspected internal failure of landing gear actuator.

Original NASA ASRS Text

Title: R MAIN LNDG GEAR COLLAPSED DURING LNDG OF AN LTT CPR JET.

Narrative: THE FLT FROM PNE TO FNT WAS UNEVENTFUL UNTIL THE APCH TO FNT. ON APCH INTO FNT THE LNDG GEAR WAS LOWERED. INDICATION WAS L MAIN AND NOSE GEAR GREEN LIGHTS, R MAIN RED LIGHT WITH RED LIGHT IN THE GEAR HANDLE FLASHING. HYD PRESSURE AND QUANTITY WAS NORMAL. RECYCLED GEAR UP, RETRACTED NORMALLY. RECYCLED GEAR DOWN, SAME UNSAFE INDICATIONS. RETRACTED GEAR AND RECEIVED VECTORS TO DTW. AT DTW REQUESTED LNDG ON RWY 3R DUE TO WINDS. THIS WOULD ALLOW FOR TOUCHDOWN ON L MAIN FIRST. PRIOR TO APCH, WE BRIEFED THE PAX AND WENT OVER THE CHKLIST. PRIOR TO THE APCH WE TRIED 1 MORE NORMAL EXTENSION, WITH SAME UNSAFE INDICATIONS. THEN RAN THE LNDG GEAR ABNORMAL EXTENSION CHKLIST. L MAIN AND NOSE GEAR WERE GREEN, R MAIN WAS RED AND THE RED LIGHT IN THE HANDLE WAS NOT FLASHING. FLAPS EXTENDED TO FULL. UNSILENCEABLE LNDG GEAR WARNING HORN SOUNDED. RETRACTED FLAPS TO 30 DEGS AND PERFORMED A TWR FLY-BY. TWR INDICATED LNDG GEAR VISUAL APPEARED NORMAL. RETURNED TO LNDG SEQUENCE. LOWERED FLAPS TO FULL, GOT UNSILENCEABLE HORN. R MAIN INDICATOR STILL RED. COMPLETED NORMAL LNDG CHKLIST. TOUCHED DOWN ON L MAIN THEN NOSE AND WHEN R WING WAS LOWERED, R GEAR COLLAPSED. ACFT STAYED ON CTRLINE UNTIL RUDDER EFFECTIVENESS WAS LOST. AT THAT POINT ACFT BEGAN TO SLIDE TO THE R AND DEPARTED THE RWY SLIDING SIDEWAYS AND COMING TO A STOP. EGRESSED ACFT WITH NO COMPLICATIONS. NO INJURIES. SUSPECTED INTERNAL FAILURE OF LNDG GEAR ACTUATOR.

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.