 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of MD88 misses crossing restr when they set northwest instead of northeast in the FMC as the waypoint. ATC vectors them 90 degrees.
| Attributes | |
| ACN | 385960 |
| Time | |
| Date | 199711 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : dbn |
| State Reference | GA |
| Altitude | msl bound lower : 28000 msl bound upper : 30000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10350 flight time type : 200 |
| ASRS Report | 385960 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met non adherence : clearance |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | vertical : 2000 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Approaching dbn from east, ATC cleared us to cross 10 mi northeast dbn at FL280. A waypoint was built 10 mi northwest. At 11 mi east of dbn, ATC queried whether we'd make the restr. We were at FL300. Upon clarification of the clearance, ATC gave us a 90 degree left turn and we expedited to FL280, reaching in less than 1 min. Unknown if any conflict arose. Contributing factor was clearance to cross 10 mi northeast when we were arriving from ene and departing northwest.
Original NASA ASRS Text
Title: FLC OF MD88 MISSES XING RESTR WHEN THEY SET NW INSTEAD OF NE IN THE FMC AS THE WAYPOINT. ATC VECTORS THEM 90 DEGS.
Narrative: APCHING DBN FROM E, ATC CLRED US TO CROSS 10 MI NE DBN AT FL280. A WAYPOINT WAS BUILT 10 MI NW. AT 11 MI E OF DBN, ATC QUERIED WHETHER WE'D MAKE THE RESTR. WE WERE AT FL300. UPON CLARIFICATION OF THE CLRNC, ATC GAVE US A 90 DEG L TURN AND WE EXPEDITED TO FL280, REACHING IN LESS THAN 1 MIN. UNKNOWN IF ANY CONFLICT AROSE. CONTRIBUTING FACTOR WAS CLRNC TO CROSS 10 MI NE WHEN WE WERE ARRIVING FROM ENE AND DEPARTING NW.
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.