<< >> NASA ASRS Report 686021, January 2006

CL65-700 flight crew after climbing to altitude has the stall warning activate. Flight crew requested a lower altitude and descend.

Attributes
ACN	686021
Time
Date	200601
Place
Locale Reference	atc facility : zme.artcc
State Reference	TN
Altitude	msl single value : 38000
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	artcc : zme.artcc
Operator	common carrier : air carrier
Make Model Name	Regional Jet 700 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	cruise : level cruise : enroute altitude change
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : atp pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 11000 flight time type : 1100
ASRS Report	686021
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : company policies non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : stall warning other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance flight crew : took precautionary avoidance action
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

While cruising at FL360 we encountered light turbulence and chose to climb to FL380. The captain (PF) advanced power and climbed the aircraft in vertical speed mode. After leveling at FL380; we returned to unrelated reading. Approximately 10 mins after leveloff; the autoplt kicked off and we had a stick shaker. The captain assumed the controls and added maximum power calling for a lower altitude. I requested lower and was immediately cleared to FL360. In descending; the airspeed returned to normal and the flight was continued to destination. After evaluating the event; the PF thought he may not have used climb power for the climb to FL380; bleeding off airspeed and the aircraft was unable to accelerate after leveloff only degrading airspeed more.

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Original NASA ASRS Text

Title: CL65-700 FLT CREW AFTER CLBING TO ALT HAS THE STALL WARNING ACTIVATE. FLT CREW REQUESTED A LOWER ALT AND DSND.

Narrative: WHILE CRUISING AT FL360 WE ENCOUNTERED LIGHT TURB AND CHOSE TO CLB TO FL380. THE CAPT (PF) ADVANCED PWR AND CLBED THE ACFT IN VERT SPD MODE. AFTER LEVELING AT FL380; WE RETURNED TO UNRELATED READING. APPROX 10 MINS AFTER LEVELOFF; THE AUTOPLT KICKED OFF AND WE HAD A STICK SHAKER. THE CAPT ASSUMED THE CTLS AND ADDED MAX PWR CALLING FOR A LOWER ALT. I REQUESTED LOWER AND WAS IMMEDIATELY CLRED TO FL360. IN DSNDING; THE AIRSPD RETURNED TO NORMAL AND THE FLT WAS CONTINUED TO DEST. AFTER EVALUATING THE EVENT; THE PF THOUGHT HE MAY NOT HAVE USED CLB PWR FOR THE CLB TO FL380; BLEEDING OFF AIRSPD AND THE ACFT WAS UNABLE TO ACCELERATE AFTER LEVELOFF ONLY DEGRADING AIRSPD MORE.

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.