<< >> NASA ASRS Report 726203, February 2007

Flight crew of carj; distracted by extraneous concerns; experiences stick shaker and autopilot disconnect while climbing through FL290.

Attributes
ACN	726203
Time
Date	200702
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dfw.airport
State Reference	TX
Altitude	msl single value : 29000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zfw.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 200 flight time total : 6500 flight time type : 2600
ASRS Report	726203
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 200 flight time total : 850 flight time type : 200
ASRS Report	726197
Events
Anomaly	non adherence : published procedure other anomaly other anomaly
Independent Detector	aircraft equipment other aircraft equipment : stick shaker
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

At approximately FL290 we experienced a stick shaker; autoplt disconnect while climbing to FL330. I assumed control of the aircraft for the recovery. We recovered to a normal climb profile. Loss of altitude was minimal. ATC was not notified nor were we queried by ATC. On first glance at the airspeed indicator; I noticed that the indicated airspeed was higher than I had anticipated. (Below minimum safe speed and the green line; but approximately 20 KTS above stall indication; 'barber pole.') the factors contributing to this occurrence include: attention of the crew being distraction. ATC issuing a clearance of 'direct to ranger.' being unfamiliar; our attention was fixated on navigation. By discussion concerning airline; company; union issues. By my lack of sleep due to a recent aggravated personal injury.

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Original NASA ASRS Text

Title: FLT CREW OF CARJ; DISTRACTED BY EXTRANEOUS CONCERNS; EXPERIENCES STICK SHAKER AND AUTOPILOT DISCONNECT WHILE CLIMBING THROUGH FL290.

Narrative: AT APPROX FL290 WE EXPERIENCED A STICK SHAKER; AUTOPLT DISCONNECT WHILE CLBING TO FL330. I ASSUMED CTL OF THE ACFT FOR THE RECOVERY. WE RECOVERED TO A NORMAL CLB PROFILE. LOSS OF ALT WAS MINIMAL. ATC WAS NOT NOTIFIED NOR WERE WE QUERIED BY ATC. ON FIRST GLANCE AT THE AIRSPD INDICATOR; I NOTICED THAT THE INDICATED AIRSPD WAS HIGHER THAN I HAD ANTICIPATED. (BELOW MINIMUM SAFE SPD AND THE GREEN LINE; BUT APPROX 20 KTS ABOVE STALL INDICATION; 'BARBER POLE.') THE FACTORS CONTRIBUTING TO THIS OCCURRENCE INCLUDE: ATTN OF THE CREW BEING DISTR. ATC ISSUING A CLRNC OF 'DIRECT TO RANGER.' BEING UNFAMILIAR; OUR ATTN WAS FIXATED ON NAV. BY DISCUSSION CONCERNING AIRLINE; COMPANY; UNION ISSUES. BY MY LACK OF SLEEP DUE TO A RECENT AGGRAVATED PERSONAL INJURY.

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.