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A320 departure from mco failed to cancel takeoff as instructed by ATC because of uncertainty as to ATC intentions.
| Attributes | |
| ACN | 680507 |
| Time | |
| Date | 200510 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : mco.airport |
| State Reference | FL |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tower : mco.tower |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | landing : hold short |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Experience | flight time last 90 days : 250 flight time total : 17000 flight time type : 1300 |
| ASRS Report | 680507 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Experience | flight time last 90 days : 233 flight time total : 9200 flight time type : 3002 |
| ASRS Report | 680506 |
| Events | |
| Anomaly | conflict : ground less severe non adherence : clearance |
| Independent Detector | other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After being cleared 'position and hold' on runway 18L; an aircraft clearing runway 18R was told to hold short of runway 18L. He did not give the correct response to the tower and there were 3-4 radio xmissions between them. Prior to this; we had been cleared for takeoff on runway 18L. The first officer had called '80 KTS' and we both heard a 'takeoff clearance canceled' radio call but heard no call sign with it. (The tower was controling both sides of the airport using separate frequencys). I was watching the airplane to make sure he was indeed holding short of our runway and made a comment to that effect. After takeoff; the tower called us for a radio check and told us 'I had canceled your takeoff clearance and I was trying to get a hold of you several times.' he then sent us to departure control without further comment. Supplemental information from acn 680506: I did hear sometime during the roll; after 80 KTS; a call to cancel takeoff clearance. I did not hear our call sign. Frankly; I think I dismissed this because I did not hear our call sign or the tower had no urgency in his voice and we were already going fast enough that I would expect to hear the words 'abort' or 'reject.' a calm voice saying; 'cancel takeoff clearance' just does not register; in a high speed; high noise aircraft. 'Abort; abort' would have been an appropriate tower call during this noisy very busy time in the cockpit.
Original NASA ASRS Text
Title: A320 DEP FROM MCO FAILED TO CANCEL TKOF AS INSTRUCTED BY ATC BECAUSE OF UNCERTAINTY AS TO ATC INTENTIONS.
Narrative: AFTER BEING CLRED 'POS AND HOLD' ON RWY 18L; AN ACFT CLRING RWY 18R WAS TOLD TO HOLD SHORT OF RWY 18L. HE DID NOT GIVE THE CORRECT RESPONSE TO THE TWR AND THERE WERE 3-4 RADIO XMISSIONS BTWN THEM. PRIOR TO THIS; WE HAD BEEN CLRED FOR TKOF ON RWY 18L. THE FO HAD CALLED '80 KTS' AND WE BOTH HEARD A 'TKOF CLRNC CANCELED' RADIO CALL BUT HEARD NO CALL SIGN WITH IT. (THE TWR WAS CTLING BOTH SIDES OF THE ARPT USING SEPARATE FREQS). I WAS WATCHING THE AIRPLANE TO MAKE SURE HE WAS INDEED HOLDING SHORT OF OUR RWY AND MADE A COMMENT TO THAT EFFECT. AFTER TKOF; THE TWR CALLED US FOR A RADIO CHK AND TOLD US 'I HAD CANCELED YOUR TKOF CLRNC AND I WAS TRYING TO GET A HOLD OF YOU SEVERAL TIMES.' HE THEN SENT US TO DEP CTL WITHOUT FURTHER COMMENT. SUPPLEMENTAL INFO FROM ACN 680506: I DID HEAR SOMETIME DURING THE ROLL; AFTER 80 KTS; A CALL TO CANCEL TKOF CLRNC. I DID NOT HEAR OUR CALL SIGN. FRANKLY; I THINK I DISMISSED THIS BECAUSE I DID NOT HEAR OUR CALL SIGN OR THE TWR HAD NO URGENCY IN HIS VOICE AND WE WERE ALREADY GOING FAST ENOUGH THAT I WOULD EXPECT TO HEAR THE WORDS 'ABORT' OR 'REJECT.' A CALM VOICE SAYING; 'CANCEL TKOF CLRNC' JUST DOES NOT REGISTER; IN A HIGH SPD; HIGH NOISE ACFT. 'ABORT; ABORT' WOULD HAVE BEEN AN APPROPRIATE TWR CALL DURING THIS NOISY VERY BUSY TIME IN THE COCKPIT.
Data retrieved from NASA's ASRS site as of January 2009 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.