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Air carrier X failed to comply with altitude crossing restriction. Pilot deviation. ARTCC radar controller technique communication failed to hear and acknowledge incorrect readback of clearance. Operational deviation.
| Attributes | |
| ACN | 149583 |
| Time | |
| Date | 199006 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bal |
| State Reference | MD |
| Altitude | msl bound lower : 13000 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zny tracon : bwi |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | descent other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 75 flight time total : 8500 flight time type : 4000 |
| ASRS Report | 149583 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 18 flight time total : 8500 flight time type : 1500 |
| ASRS Report | 150174 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation Operational Deviation |
Narrative:
Air carrier X en route to dca, ZNY cleared us directly to balance to cross 15 mi north at 12000'. I read this back, wrote it down and confirmed it with the first officer who was flying. The first officer entered this restriction into the FMC. We started the descent and were on profile to meet the restriction. At 20 DME north of balance, aircraft latitude 13300', bwi approach requested that we slow to 250 KTS. I advised that we could not make the restriction at that airspeed. Approach said that we had passed the crossing restriction, which was at 20 DME north of balance. We slowed the aircraft and crossed 15 north of balance at 12000'. I informed the controller that the center had issued our crossing restriction as 15 north of balance. He replied, 'that was a mistake.' I don't know whose mistake this was, but I feel that this flight crew was properly complying with our ATC clearance.
Original NASA ASRS Text
Title: ACR X FAILED TO COMPLY WITH ALT CROSSING RESTRICTION. PLT DEVIATION. ARTCC RADAR CTLR TECHNIQUE COM FAILED TO HEAR AND ACKNOWLEDGE INCORRECT READBACK OF CLRNC. OPERATIONAL DEVIATION.
Narrative: ACR X ENRTE TO DCA, ZNY CLRED US DIRECTLY TO BAL TO CROSS 15 MI N AT 12000'. I READ THIS BACK, WROTE IT DOWN AND CONFIRMED IT WITH THE F/O WHO WAS FLYING. THE F/O ENTERED THIS RESTRICTION INTO THE FMC. WE STARTED THE DSNT AND WERE ON PROFILE TO MEET THE RESTRICTION. AT 20 DME N OF BAL, ACFT LAT 13300', BWI APCH REQUESTED THAT WE SLOW TO 250 KTS. I ADVISED THAT WE COULD NOT MAKE THE RESTRICTION AT THAT AIRSPD. APCH SAID THAT WE HAD PASSED THE XING RESTRICTION, WHICH WAS AT 20 DME N OF BAL. WE SLOWED THE ACFT AND CROSSED 15 N OF BAL AT 12000'. I INFORMED THE CTLR THAT THE CENTER HAD ISSUED OUR XING RESTRICTION AS 15 N OF BAL. HE REPLIED, 'THAT WAS A MISTAKE.' I DON'T KNOW WHOSE MISTAKE THIS WAS, BUT I FEEL THAT THIS FLT CREW WAS PROPERLY COMPLYING WITH OUR ATC CLRNC.
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.