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An ATP rated pilot flying a CL600 in N90 airspace misheard and read back to ATC the wrong altitude crossing restr resulting in an altitude deviation.
| Attributes | |
| ACN | 435520 |
| Time | |
| Date | 199904 |
| Day | Wed |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | navaid : bwz.vor |
| State Reference | NJ |
| Altitude | msl single value : 7300 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | general aviation : corporate |
| Make Model Name | Challenger CL600 |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 4500 flight time type : 1900 |
| ASRS Report | 435520 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : far non adherence : clearance other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | flight crew : returned to assigned airspace |
| Supplementary | |
| Problem Areas | ATC Human Performance FAA Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
We were descending into newark, nj (ewr). The controller issued a crossing restr of 5 mi west of bwz at 5000 ft. I read back the crossing restr of 5 mi west of bwz at 5000 ft. I set the altitude alerter to 5000 ft and programmed the FMS. We were not on any part of the STAR due to the time of the day. Passing through 7350 ft the controller asked what our crossing restr was. We replied that we were to cross 5 mi west of bwz at 5000 ft. He informed us we were supposed to cross 5 mi west of bwz at 9000 ft. We stopped the descent and promptly climbed to 9000 ft. The controller said 'no problem, sometimes things happen.' there was not a conflict with another aircraft. The frequency was pretty quiet due to the time of the day. The time of the day is another reason we were not assigned a portion of the STAR.
Original NASA ASRS Text
Title: AN ATP RATED PLT FLYING A CL600 IN N90 AIRSPACE MISHEARD AND READ BACK TO ATC THE WRONG ALT XING RESTR RESULTING IN AN ALTDEV.
Narrative: WE WERE DSNDING INTO NEWARK, NJ (EWR). THE CTLR ISSUED A XING RESTR OF 5 MI W OF BWZ AT 5000 FT. I READ BACK THE XING RESTR OF 5 MI W OF BWZ AT 5000 FT. I SET THE ALT ALERTER TO 5000 FT AND PROGRAMMED THE FMS. WE WERE NOT ON ANY PART OF THE STAR DUE TO THE TIME OF THE DAY. PASSING THROUGH 7350 FT THE CTLR ASKED WHAT OUR XING RESTR WAS. WE REPLIED THAT WE WERE TO CROSS 5 MI W OF BWZ AT 5000 FT. HE INFORMED US WE WERE SUPPOSED TO CROSS 5 MI W OF BWZ AT 9000 FT. WE STOPPED THE DSCNT AND PROMPTLY CLBED TO 9000 FT. THE CTLR SAID 'NO PROB, SOMETIMES THINGS HAPPEN.' THERE WAS NOT A CONFLICT WITH ANOTHER ACFT. THE FREQ WAS PRETTY QUIET DUE TO THE TIME OF THE DAY. THE TIME OF THE DAY IS ANOTHER REASON WE WERE NOT ASSIGNED A PORTION OF THE STAR.
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.