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Large transport air carrier deviated from ARTCC clearance to cross abe VORTAC at 13000' and lizzi intersection at 11000'. Flight descended to 12600' 4 miles west of abe. ZNY alerted flight crew to altitude deviation.
| Attributes | |
| ACN | 85109 |
| Time | |
| Date | 198804 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : abe |
| State Reference | PA |
| Altitude | msl bound lower : 12600 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | descent : approach descent other |
| Route In Use | arrival other arrival star : star enroute : direct |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 90 flight time total : 8000 flight time type : 1200 |
| ASRS Report | 85109 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : flight engineer |
| Experience | controller non radar : 10 controller radar : 9 flight time last 90 days : 150 flight time total : 5000 flight time type : 700 |
| ASRS Report | 85145 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met altitude deviation : overshoot non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation other |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
While descending into the ny area a clearance to cross allentown VOR at 13000' was misinterpreted to be at or below 13000' at allentown and then to be at 11000' at lissi intersection. During this descent there was a distraction in the cockpit when we received a company message. At 12600' we were queried about our altitude at allentown, then cleared to continue our descent and that there was no conflict. This was an unintentional altitude deviation. Now I know that I can happen to me! I will be more alert in the future. Supplemental information from acn 85145: I understood the descent as crossing abe at on below 13000' and lizzy at 11000'. About 3-5 mi on DME towards abe at 12600', ny called and questioned descent. We had set altitude alert on 11000' from start. Misinterp on my part.
Original NASA ASRS Text
Title: LGT ACR DEVIATED FROM ARTCC CLRNC TO CROSS ABE VORTAC AT 13000' AND LIZZI INTERSECTION AT 11000'. FLT DESCENDED TO 12600' 4 MILES WEST OF ABE. ZNY ALERTED FLT CREW TO ALT DEVIATION.
Narrative: WHILE DSNDING INTO THE NY AREA A CLRNC TO CROSS ALLENTOWN VOR AT 13000' WAS MISINTERPRETED TO BE AT OR BELOW 13000' AT ALLENTOWN AND THEN TO BE AT 11000' AT LISSI INTXN. DURING THIS DSCNT THERE WAS A DISTR IN THE COCKPIT WHEN WE RECEIVED A COMPANY MESSAGE. AT 12600' WE WERE QUERIED ABOUT OUR ALT AT ALLENTOWN, THEN CLRED TO CONTINUE OUR DSCNT AND THAT THERE WAS NO CONFLICT. THIS WAS AN UNINTENTIONAL ALT DEVIATION. NOW I KNOW THAT I CAN HAPPEN TO ME! I WILL BE MORE ALERT IN THE FUTURE. SUPPLEMENTAL INFO FROM ACN 85145: I UNDERSTOOD THE DSCNT AS XING ABE AT ON BELOW 13000' AND LIZZY AT 11000'. ABOUT 3-5 MI ON DME TOWARDS ABE AT 12600', NY CALLED AND QUESTIONED DSCNT. WE HAD SET ALT ALERT ON 11000' FROM START. MISINTERP ON MY PART.
Data retrieved from NASA's ASRS site as of August 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.