|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||1201 To 1800|
|Locale Reference||atc facility : ilg|
|Altitude||msl bound lower : 1000|
msl bound upper : 1000
|Controlling Facilities||tower : ilg|
tower : ord
|Operator||general aviation : instructional|
|Make Model Name||Small Aircraft, Low Wing, 1 Eng, Retractable Gear|
|Flight Phase||descent : approach|
|Function||flight crew : single pilot|
|Qualification||pilot : private|
pilot : instrument
|Experience||flight time last 90 days : 15|
flight time total : 400
flight time type : 300
|Affiliation||government : faa|
|Function||controller : local|
|Qualification||controller : non radar|
|Anomaly||aircraft equipment problem : critical|
other anomaly other
|Independent Detector||other flight crewa|
|Resolutory Action||flight crew : overcame equipment problem|
|Air Traffic Incident||other|
Left molded grip on pilot's yoke separated from yoke in flight, resulting in temporary loss of control of small aircraft. Had this happened near ground, would have probably resulted in accident. Suggest airworthiness directive for small aircraft to positively secure yoke grips to yokes. Callback conversation with reporter revealed the following: reporter states he was turning from downwind to base when sep occurred. Suddenly there was no yoke in his hand. Very startling. He is an aeronautical engineer and has tried to come up with a solution. Feels positive security could be gained with a pin through the yoke and mode itself. Second thought was to remove and reglue the molded portion at a specific time--possibly the 100 hour or annual inspection.
Original NASA ASRS Text
Title: PLASTIC GRIP SEPARATES FROM YOKE AS ACFT IS ON DOWNWIND.
Narrative: LEFT MOLDED GRIP ON PLT'S YOKE SEPARATED FROM YOKE IN FLT, RESULTING IN TEMPORARY LOSS OF CTL OF SMA. HAD THIS HAPPENED NEAR GND, WOULD HAVE PROBABLY RESULTED IN ACCIDENT. SUGGEST AIRWORTHINESS DIRECTIVE FOR SMA TO POSITIVELY SECURE YOKE GRIPS TO YOKES. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING: RPTR STATES HE WAS TURNING FROM DOWNWIND TO BASE WHEN SEP OCCURRED. SUDDENLY THERE WAS NO YOKE IN HIS HAND. VERY STARTLING. HE IS AN AERONAUTICAL ENGINEER AND HAS TRIED TO COME UP WITH A SOLUTION. FEELS POSITIVE SECURITY COULD BE GAINED WITH A PIN THROUGH THE YOKE AND MODE ITSELF. SECOND THOUGHT WAS TO REMOVE AND REGLUE THE MOLDED PORTION AT A SPECIFIC TIME--POSSIBLY THE 100 HR OR ANNUAL INSPECTION.
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.