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On takeoff on board MD11, 4 chime emergency signal caused flight crew to abort takeoff. Aircraft returned to gate without incident and was taken OTS with hydraulic leak.
| Attributes | |
| ACN | 412659 |
| Time | |
| Date | 199808 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| 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 | MD-11 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight attendant : on duty |
| Qualification | other other : other |
| ASRS Report | 412659 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight attendant : on duty |
| Qualification | other other : other |
| ASRS Report | 412109 |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa other other : unspecified |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
Cockpit heard 4 chimes, therefore, aborted takeoff. None of the cabin crew rang the 4 chimes. It seems that there was an electrical short, as this had happened to one of the cockpit crew members a couple of days earlier. Tires were very hot and had to cool down, then developed a hydraulic leak. Airplane taken OTS. Supplemental information from acn 412109: this was due to 4 bell chime, our signal for an emergency in the cabin, in the cockpit. Indicator showed the evacuate/evacuation call came from 1L jump seat. This was impossible as I was seated in 1R jump seat and 1L flight attendant did not call the cockpit.
Original NASA ASRS Text
Title: ON TKOF ON BOARD MD11, 4 CHIME EMER SIGNAL CAUSED FLC TO ABORT TKOF. ACFT RETURNED TO GATE WITHOUT INCIDENT AND WAS TAKEN OTS WITH HYD LEAK.
Narrative: COCKPIT HEARD 4 CHIMES, THEREFORE, ABORTED TKOF. NONE OF THE CABIN CREW RANG THE 4 CHIMES. IT SEEMS THAT THERE WAS AN ELECTRICAL SHORT, AS THIS HAD HAPPENED TO ONE OF THE COCKPIT CREW MEMBERS A COUPLE OF DAYS EARLIER. TIRES WERE VERY HOT AND HAD TO COOL DOWN, THEN DEVELOPED A HYD LEAK. AIRPLANE TAKEN OTS. SUPPLEMENTAL INFO FROM ACN 412109: THIS WAS DUE TO 4 BELL CHIME, OUR SIGNAL FOR AN EMER IN THE CABIN, IN THE COCKPIT. INDICATOR SHOWED THE EVAC CALL CAME FROM 1L JUMP SEAT. THIS WAS IMPOSSIBLE AS I WAS SEATED IN 1R JUMP SEAT AND 1L FLT ATTENDANT DID NOT CALL THE COCKPIT.
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.