<< >> NASA ASRS Report 365376, March 1997

An air carrier B727 flight crew get a windshear warning on takeoff and advance the thrust levers toward the firewall getting an overtemp on the #3 engine. The flight continues to destination.

Attributes
ACN	365376
Time
Date	199703
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : nas
State Reference	FO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B727 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 180 flight time total : 3700 flight time type : 600
ASRS Report	365376
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : atp
Experience	flight time last 90 days : 50 flight time total : 8500 flight time type : 1800
ASRS Report	365213
Events
Anomaly	aircraft equipment problem : critical aircraft equipment problem : less severe non adherence : far non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

On takeoff from NAS at XA42 we encountered a windshear warning with flight director guidance and aural warning at 125 KTS. The first officer was flying the airplane and the captain pushed the power levers forward toward the firewall position. Without degradation of airspeed or acceleration, no loss of vertical climb performance. We retracted the landing gear and flaps climbing through 1000 ft. The #3 engine overtemped to 670 degrees for 5-10 seconds, even though power levers were advanced only 90% of travel. We then continued to mco. The following was written in aircraft logbook. Windshear warning on takeoff. Positive advance of throttles to 90% of travel, overtemp of #3 engine to 670 degrees C for 10 seconds. Suspect windshear computer failure. Engines performed normally.

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Original NASA ASRS Text

Title: AN ACR B727 FLC GET A WINDSHEAR WARNING ON TKOF AND ADVANCE THE THRUST LEVERS TOWARD THE FIREWALL GETTING AN OVERTEMP ON THE #3 ENG. THE FLT CONTINUES TO DEST.

Narrative: ON TKOF FROM NAS AT XA42 WE ENCOUNTERED A WINDSHEAR WARNING WITH FLT DIRECTOR GUIDANCE AND AURAL WARNING AT 125 KTS. THE FO WAS FLYING THE AIRPLANE AND THE CAPT PUSHED THE PWR LEVERS FORWARD TOWARD THE FIREWALL POS. WITHOUT DEGRADATION OF AIRSPD OR ACCELERATION, NO LOSS OF VERT CLB PERFORMANCE. WE RETRACTED THE LNDG GEAR AND FLAPS CLBING THROUGH 1000 FT. THE #3 ENG OVERTEMPED TO 670 DEGS FOR 5-10 SECONDS, EVEN THOUGH PWR LEVERS WERE ADVANCED ONLY 90% OF TRAVEL. WE THEN CONTINUED TO MCO. THE FOLLOWING WAS WRITTEN IN ACFT LOGBOOK. WINDSHEAR WARNING ON TKOF. POSITIVE ADVANCE OF THROTTLES TO 90% OF TRAVEL, OVERTEMP OF #3 ENG TO 670 DEGS C FOR 10 SECONDS. SUSPECT WINDSHEAR COMPUTER FAILURE. ENGS PERFORMED NORMALLY.

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.