A dc-10 flight crew experienced two stick shaker events with slats extended. They encountered mechan...

Narrative:

We were descending through 3;000 ft MSL on final on a visual approach backed up by ILS. Slats were extended and airspeed was stable at 190 KIAS; which was approximately 30 KTS above the lower foot. We then had two intermittent stick shaker events; perceived at two seconds each. I called for 15 flaps; but the first officer initially could not move the flap handle. By further effort; including moving the dial-a-flap wheel forward and aft; he was able to get the flap handle to move from 0 degree flap position to 15 degrees. Further flap extensions were uneventful and we completed a normal landing with 35 flap. We then notified maintenance and wrote the problem up in the aml.

Original NASA ASRS Text

Title: A DC-10 flight crew experienced two stick shaker events with slats extended. They encountered mechanical resistance to their initial attempts to position the flap handle to 15 degrees. Subsequent attempts allowed positioning of flaps and they landed normally.

Narrative: We were descending through 3;000 FT MSL on final on a visual approach backed up by ILS. Slats were extended and airspeed was stable at 190 KIAS; which was approximately 30 KTS above the lower foot. We then had two intermittent stick shaker events; perceived at two seconds each. I called for 15 flaps; but the First Officer initially could not move the flap handle. By further effort; including moving the dial-a-flap wheel forward and aft; he was able to get the flap handle to move from 0 degree flap position to 15 degrees. Further flap extensions were uneventful and we completed a normal landing with 35 flap. We then notified maintenance and wrote the problem up in the AML.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1012939
Time
Date	201205
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	DC-10 30
Operating Under FAR Part	Part 121
Flight Phase	Initial Approach
Flight Plan	IFR
Component
Aircraft Component	Flap Control (Trailing & Leading Edge)
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Speed All Types

A dc-10 flight crew experienced two stick shaker events with slats extended. They encountered mechanical resistance to their initial attempts to position the flap handle to 15 degrees. Subsequent attempts allowed positioning of flaps and they landed normally.