<< >> NASA ASRS Report 384295, October 1997

A globe GC1B pilot while observing another aircraft land with landing gear problems failed to extend the landing gear and landed gear up incurring damage to the aircraft. After jacking it was found the landing gear warning unsafe light throttle switch had failed.

Attributes
ACN	384295
Time
Date	199710
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : geo
State Reference	OH
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : cak
Operator	general aviation : personal
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 45 flight time total : 15000 flight time type : 8000
ASRS Report	384295
Events
Anomaly	aircraft equipment problem : critical non adherence : published procedure non adherence : far other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation

Narrative:

Flight of 2 globe GC1B's left california en route to geo. One aircraft, flight lead, had experienced landing gear difficulty en route. I, as wingman, observed each takeoff/landing of flight leader for gear malfunction (4 flts). Last flight leader had to leave gear down. I was so intent on leader landing safely that I absolutely forgot my own gear. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a globe GC1B and after the aircraft was jacked and the landing gear operated it was found the landing gear unsafe light system was inoperative due to a failed throttle switch. The reporter said the aircraft incurred minor damage and no injuries involved.

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Original NASA ASRS Text

Title: A GLOBE GC1B PLT WHILE OBSERVING ANOTHER ACFT LAND WITH LNDG GEAR PROBS FAILED TO EXTEND THE LNDG GEAR AND LANDED GEAR UP INCURRING DAMAGE TO THE ACFT. AFTER JACKING IT WAS FOUND THE LNDG GEAR WARNING UNSAFE LIGHT THROTTLE SWITCH HAD FAILED.

Narrative: FLT OF 2 GLOBE GC1B'S LEFT CALIFORNIA ENRTE TO GEO. ONE ACFT, FLT LEAD, HAD EXPERIENCED LNDG GEAR DIFFICULTY ENRTE. I, AS WINGMAN, OBSERVED EACH TKOF/LNDG OF FLT LEADER FOR GEAR MALFUNCTION (4 FLTS). LAST FLT LEADER HAD TO LEAVE GEAR DOWN. I WAS SO INTENT ON LEADER LNDG SAFELY THAT I ABSOLUTELY FORGOT MY OWN GEAR. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A GLOBE GC1B AND AFTER THE ACFT WAS JACKED AND THE LNDG GEAR OPERATED IT WAS FOUND THE LNDG GEAR UNSAFE LIGHT SYS WAS INOP DUE TO A FAILED THROTTLE SWITCH. THE RPTR SAID THE ACFT INCURRED MINOR DAMAGE AND NO INJURIES INVOLVED.

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.