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Small transport cargo pilot mishears climb altitude, but controller catches the error as he passes the assigned altitude. No conflict and he is given clearance to cruise altitude.
| Attributes | |
| ACN | 346790 |
| Time | |
| Date | 199609 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : yyz |
| State Reference | ON |
| Altitude | msl bound lower : 5000 msl bound upper : 5500 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : yyz |
| Operator | other |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air taxi |
| Function | flight crew : single pilot |
| Qualification | pilot : instrument pilot : cfi pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 250 flight time total : 2800 flight time type : 300 |
| ASRS Report | 346790 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
I was climbing to my assigned altitude which I thought was 6000 ft and as I was climbing through 5500 ft ATC said I was assigned 5000 ft not 6000 ft. I told him I repeated 6000 ft and he replied it was not a big deal. There was not a conflict for other aircraft. He then allowed me to continue the climb up to my cruising altitude of 10000 ft and nothing more was said. There was a lot of traffic on the radio so that may have been part of it, he was busy. I was also getting tired for this was during my 4TH hour of this trip so I may have missed the assigned altitude, but he also forgot to correct me for saying the wrong altitude. I feel this is one of those sits that are going to happen no matter what preventive action may be taken. I am just relieved that there was not an aircraft anywhere near me at the time of the event.
Original NASA ASRS Text
Title: SMT CARGO PLT MISHEARS CLB ALT, BUT CTLR CATCHES THE ERROR AS HE PASSES THE ASSIGNED ALT. NO CONFLICT AND HE IS GIVEN CLRNC TO CRUISE ALT.
Narrative: I WAS CLBING TO MY ASSIGNED ALT WHICH I THOUGHT WAS 6000 FT AND AS I WAS CLBING THROUGH 5500 FT ATC SAID I WAS ASSIGNED 5000 FT NOT 6000 FT. I TOLD HIM I REPEATED 6000 FT AND HE REPLIED IT WAS NOT A BIG DEAL. THERE WAS NOT A CONFLICT FOR OTHER ACFT. HE THEN ALLOWED ME TO CONTINUE THE CLB UP TO MY CRUISING ALT OF 10000 FT AND NOTHING MORE WAS SAID. THERE WAS A LOT OF TFC ON THE RADIO SO THAT MAY HAVE BEEN PART OF IT, HE WAS BUSY. I WAS ALSO GETTING TIRED FOR THIS WAS DURING MY 4TH HR OF THIS TRIP SO I MAY HAVE MISSED THE ASSIGNED ALT, BUT HE ALSO FORGOT TO CORRECT ME FOR SAYING THE WRONG ALT. I FEEL THIS IS ONE OF THOSE SITS THAT ARE GOING TO HAPPEN NO MATTER WHAT PREVENTIVE ACTION MAY BE TAKEN. I AM JUST RELIEVED THAT THERE WAS NOT AN ACFT ANYWHERE NEAR ME AT THE TIME OF THE EVENT.
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.