SF340 flight crew reports that roll control is sluggish and unresponsive as if the ailerons could be...

Attributes
ACN	737540
Time
Date	200705
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dtw.airport
State Reference	MI
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : dtw.tower
Operator	common carrier : air carrier
Make Model Name	SF 340B
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	737540
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Aileron control did not feel normal. Felt as though the aileron cables were loose. Roll response sluggish. Felt as though only 1 aileron was moving. Turned off autoplt approximately less than 1000 ft AGL. Normal landing. After autoplt disconnect on approach for landing; normal landing; however; maintenance control notified. Maintenance write-up entered in 'MM1' log. Callback conversation with reporter revealed the following information: the reporter states that the first officer questioned the aileron feel on the first leg but didn't say anything until the captain brought the subject up. Post flight revealed that speed tape applied to the trailing edge by maintenance as a temporary repair may have interfered with aileron movement. A definitive cause for this incident has not been revealed to the reporter.

Original NASA ASRS Text

Title: SF340 FLT CREW REPORTS THAT ROLL CONTROL IS SLUGGISH AND UNRESPONSIVE AS IF THE AILERONS COULD BE BINDING OR ONE NOT OPERATING.

Narrative: AILERON CTL DID NOT FEEL NORMAL. FELT AS THOUGH THE AILERON CABLES WERE LOOSE. ROLL RESPONSE SLUGGISH. FELT AS THOUGH ONLY 1 AILERON WAS MOVING. TURNED OFF AUTOPLT APPROX LESS THAN 1000 FT AGL. NORMAL LNDG. AFTER AUTOPLT DISCONNECT ON APCH FOR LNDG; NORMAL LNDG; HOWEVER; MAINT CTL NOTIFIED. MAINT WRITE-UP ENTERED IN 'MM1' LOG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE REPORTER STATES THAT THE FIRST OFFICER QUESTIONED THE AILERON FEEL ON THE FIRST LEG BUT DIDN'T SAY ANYTHING UNTIL THE CAPTAIN BROUGHT THE SUBJECT UP. POST FLIGHT REVEALED THAT SPEED TAPE APPLIED TO THE TRAILING EDGE BY MAINTENANCE AS A TEMPORARY REPAIR MAY HAVE INTERFERED WITH AILERON MOVEMENT. A DEFINITIVE CAUSE FOR THIS INCIDENT HAS NOT BEEN REVEALED TO THE REPORTER.

Data retrieved from NASA's ASRS site as of January 2009 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.

SF340 flight crew reports that roll control is sluggish and unresponsive as if the ailerons could be binding or one not operating.