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A B737-500 crew, on approach to ewr, misinterped ATC's clearance, starting a descent to 2000 ft, overshooting their assigned 3000 ft.
| Attributes | |
| ACN | 557487 |
| Time | |
| Date | 200208 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : teb.airport |
| State Reference | NJ |
| Altitude | msl bound lower : 2600 msl bound upper : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : n90.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-500 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument non precision arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 11000 flight time type : 2800 |
| ASRS Report | 557487 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : overshoot altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to assigned altitude |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
On a vector for approach, VOR runway 22L at ewr, approach cleared us VOR approach, 3000 ft to join. We thought he said 2000 ft till established. Upon descent to 2600 ft, we were told to go back to 3000 ft. There was a miscom as to what altitude to maintain. The controller was very busy and so was our crew. We should have verified the altitude with the controller because there was a doubt in our minds. There was no conflict or word from the controller that there was a problem.
Original NASA ASRS Text
Title: A B737-500 CREW, ON APCH TO EWR, MISINTERPED ATC'S CLRNC, STARTING A DSCNT TO 2000 FT, OVERSHOOTING THEIR ASSIGNED 3000 FT.
Narrative: ON A VECTOR FOR APCH, VOR RWY 22L AT EWR, APCH CLRED US VOR APCH, 3000 FT TO JOIN. WE THOUGHT HE SAID 2000 FT TILL ESTABLISHED. UPON DSCNT TO 2600 FT, WE WERE TOLD TO GO BACK TO 3000 FT. THERE WAS A MISCOM AS TO WHAT ALT TO MAINTAIN. THE CTLR WAS VERY BUSY AND SO WAS OUR CREW. WE SHOULD HAVE VERIFIED THE ALT WITH THE CTLR BECAUSE THERE WAS A DOUBT IN OUR MINDS. THERE WAS NO CONFLICT OR WORD FROM THE CTLR THAT THERE WAS A PROB.
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.