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A B727-200 PIC firewalls the 3 engines after receiving a stall warning during rotation off the runway at den, co.
| Attributes | |
| ACN | 476729 |
| Time | |
| Date | 200006 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : den.airport |
| State Reference | CO |
| Altitude | agl bound lower : 0 agl bound upper : 400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : den.tower tower : gcn.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff climbout : initial ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : multi engine pilot : cfi pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 13000 flight time type : 6000 |
| ASRS Report | 476729 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | aircraft : equipment problem dissipated flight crew : overrode automation |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
On takeoff during rotation the captain's stall warning system activated. This happened at approximately 145 KTS with a V1/vr of 141 KTS and V2 of 152 KTS. With stick shaker activation firewall thrust was applied and rotation was continued. At approximately 200 ft to 400 ft we realized this was probably a false warning and reduced power to takeoff power, and continued the takeoff profile. After passing approximately 10000 ft to 12000 ft I had the so contact dispatch and request a phone patch with line maintenance. After discussing the event and the condition of the engines with maintenance we continued on to our destination. Engines operation was normal for remainder of flight. We were able to stop stall warning activation by pulling the #1 stall warning AC breaker. After arrival maintenance removed the aircraft from service.
Original NASA ASRS Text
Title: A B727-200 PIC FIREWALLS THE 3 ENGS AFTER RECEIVING A STALL WARNING DURING ROTATION OFF THE RWY AT DEN, CO.
Narrative: ON TKOF DURING ROTATION THE CAPT'S STALL WARNING SYS ACTIVATED. THIS HAPPENED AT APPROX 145 KTS WITH A V1/VR OF 141 KTS AND V2 OF 152 KTS. WITH STICK SHAKER ACTIVATION FIREWALL THRUST WAS APPLIED AND ROTATION WAS CONTINUED. AT APPROX 200 FT TO 400 FT WE REALIZED THIS WAS PROBABLY A FALSE WARNING AND REDUCED PWR TO TKOF PWR, AND CONTINUED THE TKOF PROFILE. AFTER PASSING APPROX 10000 FT TO 12000 FT I HAD THE SO CONTACT DISPATCH AND REQUEST A PHONE PATCH WITH LINE MAINT. AFTER DISCUSSING THE EVENT AND THE CONDITION OF THE ENGS WITH MAINT WE CONTINUED ON TO OUR DEST. ENGS OP WAS NORMAL FOR REMAINDER OF FLT. WE WERE ABLE TO STOP STALL WARNING ACTIVATION BY PULLING THE #1 STALL WARNING AC BREAKER. AFTER ARR MAINT REMOVED THE ACFT FROM SVC.
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.