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Air carrier medium large transport aborted takeoff due to cockpit aural warning system activated as throttles were advanced for takeoff.
| Attributes | |
| ACN | 137964 |
| Time | |
| Date | 199002 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| 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 | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : takeoff ground other : taxi 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 : 100 flight time total : 12000 flight time type : 4000 |
| ASRS Report | 137964 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : overcame equipment problem flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Ambiguous |
| Air Traffic Incident | Pilot Deviation other |
Narrative:
Aborted takeoff runway 10L at pdx. When the throttles were advanced for takeoff a CAWS aural 'flaps' warning sounded. A quick adjustment of the flap dial did not rectify the situation so I rolled to the first turnoff, minutely adjusted the flap dial on the taxiway and taxied back for an immediate takeoff. The CAWS (cockpit aural warning system) is checked on taxi out in conjunction with several other items on one checklist call. Perhaps a dedicated item to CAWS check would prevent this.
Original NASA ASRS Text
Title: ACR MLG ABORTED TKOF DUE TO COCKPIT AURAL WARNING SYSTEM ACTIVATED AS THROTTLES WERE ADVANCED FOR TKOF.
Narrative: ABORTED TKOF RWY 10L AT PDX. WHEN THE THROTTLES WERE ADVANCED FOR TKOF A CAWS AURAL 'FLAPS' WARNING SOUNDED. A QUICK ADJUSTMENT OF THE FLAP DIAL DID NOT RECTIFY THE SITUATION SO I ROLLED TO THE FIRST TURNOFF, MINUTELY ADJUSTED THE FLAP DIAL ON THE TXWY AND TAXIED BACK FOR AN IMMEDIATE TKOF. THE CAWS (COCKPIT AURAL WARNING SYSTEM) IS CHECKED ON TAXI OUT IN CONJUNCTION WITH SEVERAL OTHER ITEMS ON ONE CHECKLIST CALL. PERHAPS A DEDICATED ITEM TO CAWS CHECK WOULD PREVENT THIS.
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.