<< >> NASA ASRS Report 374907, July 1997

Flight crew of a B727 returned to land after feeling an unusual vibration when during right turns and observing a ground spoiler floating on the right wing.

Attributes
ACN	374907
Time
Date	199707
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : yqg airport : dtw
State Reference	ON
Altitude	msl bound lower : 19000 msl bound upper : 19000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dtw
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : intermediate altitude other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 240 flight time total : 10900 flight time type : 900
ASRS Report	374907
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

On departure from dtw, we noticed a moderate vibration during right turns. Wheel deflections to the right of 10-15 degrees at slow roll rates produced moderate vibrations with autoplt on or off (a and B channel). The so visually observed what appeared to be ground spoiler float on the right wing. The flight returned to dtw for an uneventful landing.

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Original NASA ASRS Text

Title: FLC OF A B727 RETURNED TO LAND AFTER FEELING AN UNUSUAL VIBRATION WHEN DURING R TURNS AND OBSERVING A GND SPOILER FLOATING ON THE R WING.

Narrative: ON DEP FROM DTW, WE NOTICED A MODERATE VIBRATION DURING R TURNS. WHEEL DEFLECTIONS TO THE R OF 10-15 DEGS AT SLOW ROLL RATES PRODUCED MODERATE VIBRATIONS WITH AUTOPLT ON OR OFF (A AND B CHANNEL). THE SO VISUALLY OBSERVED WHAT APPEARED TO BE GND SPOILER FLOAT ON THE R WING. THE FLT RETURNED TO DTW FOR AN UNEVENTFUL LNDG.

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.