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Altitude deviation altitude overshoot. The flight crew started their descent and then received an amended clearance, but descended to the old clearance altitude anyway.
| Attributes | |
| ACN | 301260 |
| Time | |
| Date | 199504 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : lrp |
| State Reference | PA |
| Altitude | msl bound lower : 18000 msl bound upper : 19000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny tower : aby |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 135 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10000 flight time type : 200 |
| ASRS Report | 301260 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 240 flight time total : 4500 flight time type : 420 |
| ASRS Report | 300675 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : clearance non adherence other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | none taken : detected after the fact none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We had been cleared down to FL180 from FL240. Passing through the low 20's we were told to stop our descent at FL190 and given a handoff. Some mins later, the new sector controller asked us to verify our altitude. Apparently I had tuned the new frequency and neglected to reset the preselect altitude. Neither of us caught my omission. Fortunately, there were no conflicts and we were given further descent right away. The hazards of my slip are too obvious to belabor, but it never ceases to amaze me that there are so many ways to slip up and create potentially disastrous circumstances.
Original NASA ASRS Text
Title: ALTDEV ALT OVERSHOOT. THE FLC STARTED THEIR DSCNT AND THEN RECEIVED AN AMENDED CLRNC, BUT DSNDED TO THE OLD CLRNC ALT ANYWAY.
Narrative: WE HAD BEEN CLRED DOWN TO FL180 FROM FL240. PASSING THROUGH THE LOW 20'S WE WERE TOLD TO STOP OUR DSCNT AT FL190 AND GIVEN A HDOF. SOME MINS LATER, THE NEW SECTOR CTLR ASKED US TO VERIFY OUR ALT. APPARENTLY I HAD TUNED THE NEW FREQ AND NEGLECTED TO RESET THE PRESELECT ALT. NEITHER OF US CAUGHT MY OMISSION. FORTUNATELY, THERE WERE NO CONFLICTS AND WE WERE GIVEN FURTHER DSCNT RIGHT AWAY. THE HAZARDS OF MY SLIP ARE TOO OBVIOUS TO BELABOR, BUT IT NEVER CEASES TO AMAZE ME THAT THERE ARE SO MANY WAYS TO SLIP UP AND CREATE POTENTIALLY DISASTROUS CIRCUMSTANCES.
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.