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C525 crew was confused with approach instruction to cross dlf at 4000 ft and 5 mi west of dlf at 3600 ft.
| Attributes | |
| ACN | 573879 |
| Time | |
| Date | 200302 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dlf.airport |
| State Reference | TX |
| Altitude | msl bound lower : 3600 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : corporate |
| Make Model Name | Citationjet, C525/C526 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | approach : traffic pattern |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : multi engine pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 70 flight time total : 1600 flight time type : 260 |
| ASRS Report | 573879 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | flight crew : returned to assigned altitude other |
| Miss Distance | horizontal : 0 vertical : 500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
Narrative:
Descent to drt. Approach gives instruction to 'cross dlf at 4000 ft and 5 mi west at 3600 ft, cleared for the visual approach at drt.' the PF continued his descent past 4000 ft prior to reaching the VOR. I questioned him and alerted him to the TCASII and he climbed back to 4000 ft to clear the traffic. I believe ATC should've alerted us to the traffic crossing, and waited until we were clear of the traffic to give us a visual approach. This could've eliminated the confusion.
Original NASA ASRS Text
Title: C525 CREW WAS CONFUSED WITH APCH INSTRUCTION TO CROSS DLF AT 4000 FT AND 5 MI W OF DLF AT 3600 FT.
Narrative: DSCNT TO DRT. APCH GIVES INSTRUCTION TO 'CROSS DLF AT 4000 FT AND 5 MI W AT 3600 FT, CLRED FOR THE VISUAL APCH AT DRT.' THE PF CONTINUED HIS DSCNT PAST 4000 FT PRIOR TO REACHING THE VOR. I QUESTIONED HIM AND ALERTED HIM TO THE TCASII AND HE CLBED BACK TO 4000 FT TO CLR THE TFC. I BELIEVE ATC SHOULD'VE ALERTED US TO THE TFC XING, AND WAITED UNTIL WE WERE CLR OF THE TFC TO GIVE US A VISUAL APCH. THIS COULD'VE ELIMINATED THE CONFUSION.
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.