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Takeoff abort due to improper cockpit procedures.
| Attributes | |
| ACN | 278518 |
| Time | |
| Date | 199407 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw |
| State Reference | MI |
| 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 | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Flight Phase | other |
| Route In Use | departure other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 210 flight time total : 3900 flight time type : 2500 |
| ASRS Report | 278518 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 4600 flight time type : 2500 |
| ASRS Report | 278309 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On departing runway 21C at detroit metropolitan airport, left engine was not making standard power (at 20 degree centigrade engine should make 88 percent torque with an egt limit of no more than 650 degrees centigrade) at 60 KTS, power check was abnormal. Captain called for the abort. As the aircraft was decelerating, I observed the left engine speed lever retarded slightly aft of firewall. Therefore engine speed was hovering around 98-99 percent. This caused the fuel schedule to bypass fuel to the engine and indicated a blue light in the cockpit. The captain made a decisive move by aborting the takeoff which I felt was in the best interest of safety. We pulled off the runway, taxied to a runup pad nearby to assess the situation. We discussed the problem and ran the left speed lever to high. We ensured that it was locked into position, then ran the power levers to takeoff power. RPM was at 100 percent. Torque was stabilized at 88 percent with 630 degree centigrade on the egt. All indications were normal based on the successful outcome of the static power check. We felt there was no reason to return to the gate. We took off without any other abnormalities. Prior to taking the active runway, I will ensure the friction lock is completely tight, holding the speed levers in their respective positions.
Original NASA ASRS Text
Title: TKOF ABORT DUE TO IMPROPER COCKPIT PROCS.
Narrative: ON DEPARTING RWY 21C AT DETROIT METRO ARPT, L ENG WAS NOT MAKING STANDARD PWR (AT 20 DEG CENTIGRADE ENG SHOULD MAKE 88 PERCENT TORQUE WITH AN EGT LIMIT OF NO MORE THAN 650 DEGS CENTIGRADE) AT 60 KTS, PWR CHK WAS ABNORMAL. CAPT CALLED FOR THE ABORT. AS THE ACFT WAS DECELERATING, I OBSERVED THE L ENG SPD LEVER RETARDED SLIGHTLY AFT OF FIREWALL. THEREFORE ENG SPD WAS HOVERING AROUND 98-99 PERCENT. THIS CAUSED THE FUEL SCHEDULE TO BYPASS FUEL TO THE ENG AND INDICATED A BLUE LIGHT IN THE COCKPIT. THE CAPT MADE A DECISIVE MOVE BY ABORTING THE TKOF WHICH I FELT WAS IN THE BEST INTEREST OF SAFETY. WE PULLED OFF THE RWY, TAXIED TO A RUNUP PAD NEARBY TO ASSESS THE SIT. WE DISCUSSED THE PROB AND RAN THE L SPD LEVER TO HIGH. WE ENSURED THAT IT WAS LOCKED INTO POS, THEN RAN THE PWR LEVERS TO TKOF PWR. RPM WAS AT 100 PERCENT. TORQUE WAS STABILIZED AT 88 PERCENT WITH 630 DEG CENTIGRADE ON THE EGT. ALL INDICATIONS WERE NORMAL BASED ON THE SUCCESSFUL OUTCOME OF THE STATIC PWR CHK. WE FELT THERE WAS NO REASON TO RETURN TO THE GATE. WE TOOK OFF WITHOUT ANY OTHER ABNORMALITIES. PRIOR TO TAKING THE ACTIVE RWY, I WILL ENSURE THE FRICTION LOCK IS COMPLETELY TIGHT, HOLDING THE SPD LEVERS IN THEIR RESPECTIVE POSITIONS.
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.