37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 442049 |
Time | |
Date | 199907 |
Day | Fri |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | airport : oma.airport |
State Reference | NE |
Altitude | agl single value : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | tower : oma.tower |
Operator | common carrier : air carrier |
Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
Operating Under FAR Part | Part 121 |
Flight Phase | ground : takeoff roll |
Flight Plan | IFR |
Aircraft 2 | |
Controlling Facilities | tower : oma.tower |
Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
Navigation In Use | ils localizer & glide slope : 14r |
Flight Phase | descent : approach |
Route In Use | approach : instrument precision |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 245 flight time total : 20000 flight time type : 14000 |
ASRS Report | 442049 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : instrument pilot : multi engine pilot : commercial |
Events | |
Anomaly | aircraft equipment problem : less severe conflict : airborne critical non adherence : required legal separation |
Independent Detector | other flight crewa other flight crewb |
Resolutory Action | flight crew : rejected takeoff |
Supplementary | |
Problem Areas | ATC Human Performance Aircraft |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
We were cleared for takeoff runway 14R. I noticed jet traffic approaching runway 18. I thought it looked a little close for comfort. When turning into position for takeoff, and xferring aircraft control over to first officer, we were told by tower control to expedite takeoff. When first officer advanced power to the engines, the engine lagged and got an automatic shutdown of the air conditioning system then a big pressure surge as the unspooled engine came up to RPM. My ears became full of pressure and I was trying to clear the discomfort. Aircraft approaching runway 18 asked tower control 'are you sure this is going to work?' that statement got my attention and I looked back out my window to see how close the aircraft was. At this time I was trying to release pressure from my ears. The aircraft approaching runway 18 didn't seem to be a threat, continuing the takeoff roll all I could hear from tower control was the sound of the microphone open and what seemed to be the controller thinking out loud. All that was coming through my headset was ah-ah-ah-ah. At that time I heard a word that sounded like either cancel or clearance. Immediately after that, I hard him say flight XXX cancel takeoff clearance! I then performed the abort. Our airspeed was 70 KTS and our ground speed was about 60 KTS. Aircraft approaching landed without incident. We returned for takeoff after checking our brake limitation chart. Contributing factors: the hurry-up effect. ATC wanting us to expedite takeoff departure. Pressure surge from unspooled engine. Proper phraseology to abort takeoff from ATC. Corrective actions: pilots take your time. Slow down and don't be tempted to hurry for ATC. A few days later, I interacted with the ATC facility. They advised me that they were training a new controller and his judgement for that event was wrong and debriefed the verbiage and judgement of the decision to clear us for takeoff.
Original NASA ASRS Text
Title: MLG CREW ABORTED TKOF BECAUSE OF LNDG TFC.
Narrative: WE WERE CLRED FOR TKOF RWY 14R. I NOTICED JET TFC APCHING RWY 18. I THOUGHT IT LOOKED A LITTLE CLOSE FOR COMFORT. WHEN TURNING INTO POS FOR TKOF, AND XFERRING ACFT CTL OVER TO FO, WE WERE TOLD BY TWR CTL TO EXPEDITE TKOF. WHEN FO ADVANCED PWR TO THE ENGS, THE ENG LAGGED AND GOT AN AUTO SHUTDOWN OF THE AIR CONDITIONING SYS THEN A BIG PRESSURE SURGE AS THE UNSPOOLED ENG CAME UP TO RPM. MY EARS BECAME FULL OF PRESSURE AND I WAS TRYING TO CLR THE DISCOMFORT. ACFT APCHING RWY 18 ASKED TWR CTL 'ARE YOU SURE THIS IS GOING TO WORK?' THAT STATEMENT GOT MY ATTN AND I LOOKED BACK OUT MY WINDOW TO SEE HOW CLOSE THE ACFT WAS. AT THIS TIME I WAS TRYING TO RELEASE PRESSURE FROM MY EARS. THE ACFT APCHING RWY 18 DIDN'T SEEM TO BE A THREAT, CONTINUING THE TKOF ROLL ALL I COULD HEAR FROM TWR CTL WAS THE SOUND OF THE MIKE OPEN AND WHAT SEEMED TO BE THE CTLR THINKING OUT LOUD. ALL THAT WAS COMING THROUGH MY HEADSET WAS AH-AH-AH-AH. AT THAT TIME I HEARD A WORD THAT SOUNDED LIKE EITHER CANCEL OR CLRNC. IMMEDIATELY AFTER THAT, I HARD HIM SAY FLT XXX CANCEL TKOF CLRNC! I THEN PERFORMED THE ABORT. OUR AIRSPD WAS 70 KTS AND OUR GND SPD WAS ABOUT 60 KTS. ACFT APCHING LANDED WITHOUT INCIDENT. WE RETURNED FOR TKOF AFTER CHKING OUR BRAKE LIMITATION CHART. CONTRIBUTING FACTORS: THE HURRY-UP EFFECT. ATC WANTING US TO EXPEDITE TKOF DEP. PRESSURE SURGE FROM UNSPOOLED ENG. PROPER PHRASEOLOGY TO ABORT TKOF FROM ATC. CORRECTIVE ACTIONS: PLTS TAKE YOUR TIME. SLOW DOWN AND DON'T BE TEMPTED TO HURRY FOR ATC. A FEW DAYS LATER, I INTERACTED WITH THE ATC FACILITY. THEY ADVISED ME THAT THEY WERE TRAINING A NEW CTLR AND HIS JUDGEMENT FOR THAT EVENT WAS WRONG AND DEBRIEFED THE VERBIAGE AND JUDGEMENT OF THE DECISION TO CLR US FOR TKOF.
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.