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Commuter flight crew aborts takeoff due to failure of alcohol water injection system on turboprop engine to produce rated power.
| Attributes | |
| ACN | 150964 |
| Time | |
| Date | 199007 |
| Day | Tue |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : boi |
| State Reference | ID |
| 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 | Small Transport, Low Wing, 2 Turboprop Eng |
| Flight Phase | climbout : takeoff 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 : 200 flight time total : 4000 flight time type : 2600 |
| ASRS Report | 150964 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence other other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
I used awi (alcohol/water injection) system in takeoff roll in boise. #2 engine made torque and then fell off as if awi system failed. I then aborted takeoff and returned to gate and wrote up awi system. #2 engine lost torque. Later I was informed the srl computer had been written up inoperative and is required for wet awi takeoff option. The write up I read was '#2 engine went to 760 degree with no fuel modulation on start.' I did not gather the srl was inoperative from that write up and used the system.
Original NASA ASRS Text
Title: COMMUTER FLT CREW ABORTS TKOF DUE TO FAILURE OF ALCOHOL WATER INJECTION SYSTEM ON TURBOPROP ENGINE TO PRODUCE RATED POWER.
Narrative: I USED AWI (ALCOHOL/WATER INJECTION) SYS IN TKOF ROLL IN BOISE. #2 ENG MADE TORQUE AND THEN FELL OFF AS IF AWI SYS FAILED. I THEN ABORTED TKOF AND RETURNED TO GATE AND WROTE UP AWI SYS. #2 ENG LOST TORQUE. LATER I WAS INFORMED THE SRL COMPUTER HAD BEEN WRITTEN UP INOPERATIVE AND IS REQUIRED FOR WET AWI TKOF OPTION. THE WRITE UP I READ WAS '#2 ENG WENT TO 760 DEG WITH NO FUEL MODULATION ON START.' I DID NOT GATHER THE SRL WAS INOPERATIVE FROM THAT WRITE UP AND USED THE SYS.
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.