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After a rejected takeoff, widebody transport departs with insufficient time allowed for brake cooling.
| Attributes | |
| ACN | 225450 |
| Time | |
| Date | 199211 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : san |
| State Reference | CA |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : takeoff ground : parked other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 18000 flight time type : 2500 |
| ASRS Report | 225450 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 125 flight time total : 6500 flight time type : 500 |
| ASRS Report | 225455 |
| Events | |
| Anomaly | non adherence : far non adherence : published procedure |
| Independent Detector | other other : unspecified |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| Publication | Unspecified |
Narrative:
A rejected takeoff was made in san due to a false door warning light. I also thought I saw a second warning light other than for a door warning on the forward annunciator panel. We returned to gate and after conferring with the brake energy limits chart, which called for 1:12 cool-down plus flight control, my crew, and maintenance at the aircraft, we decided to leave after about 30 mins ground time due to the fact that the tires and brakes were warm but touchable. I was informed by chief pilot that the brake energy chart is not open to interpretation and must be adhered to, which I will do in future. We departed early because very little braking was used along with maximum reverse thrust. Rejected takeoff was initiated at 115 KTS. The energy chart is based on maximum braking and no reverse thrust.
Original NASA ASRS Text
Title: AFTER A REJECTED TKOF, WDB DEPARTS WITH INSUFFICIENT TIME ALLOWED FOR BRAKE COOLING.
Narrative: A REJECTED TKOF WAS MADE IN SAN DUE TO A FALSE DOOR WARNING LIGHT. I ALSO THOUGHT I SAW A SECOND WARNING LIGHT OTHER THAN FOR A DOOR WARNING ON THE FORWARD ANNUNCIATOR PANEL. WE RETURNED TO GATE AND AFTER CONFERRING WITH THE BRAKE ENERGY LIMITS CHART, WHICH CALLED FOR 1:12 COOL-DOWN PLUS FLT CTL, MY CREW, AND MAINT AT THE ACFT, WE DECIDED TO LEAVE AFTER ABOUT 30 MINS GND TIME DUE TO THE FACT THAT THE TIRES AND BRAKES WERE WARM BUT TOUCHABLE. I WAS INFORMED BY CHIEF PLT THAT THE BRAKE ENERGY CHART IS NOT OPEN TO INTERP AND MUST BE ADHERED TO, WHICH I WILL DO IN FUTURE. WE DEPARTED EARLY BECAUSE VERY LITTLE BRAKING WAS USED ALONG WITH MAX REVERSE THRUST. REJECTED TKOF WAS INITIATED AT 115 KTS. THE ENERGY CHART IS BASED ON MAX BRAKING AND NO REVERSE THRUST.
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.