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A B737 landing dfw on runway 17C may have started descent below 4000 ft before being established on the localizer and conflicted with an E135 turning onto runway 17C.
| Attributes | |
| ACN | 625862 |
| Time | |
| Date | 200407 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dfw.airport |
| State Reference | TX |
| Altitude | msl single value : 3000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d10.tracon tower : phl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 135 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : d10.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 17c |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller radar : 13 controller time certified in position1 : 13.08 flight time total : 14 |
| ASRS Report | 625862 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : published procedure |
| Independent Detector | other controllera other flight crewa other flight crewb |
| Resolutory Action | none taken : anomaly accepted |
| Miss Distance | horizontal : 17000 vertical : 900 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
I complied with all control directives within my control. It appeared there was a loss of separation between aircraft X and aircraft Y 1 mi north of yohan intersection, south aircraft X was on dogleg to join the ILS runway 18R. Aircraft Y was executing an ILS runway 17C, was south of penny intersection section, and was descending through 4000 ft.
Original NASA ASRS Text
Title: A B737 LNDG DFW ON RWY 17C MAY HAVE STARTED DSCNT BELOW 4000 FT BEFORE BEING ESTABLISHED ON THE LOC AND CONFLICTED WITH AN E135 TURNING ONTO RWY 17C.
Narrative: I COMPLIED WITH ALL CTL DIRECTIVES WITHIN MY CTL. IT APPEARED THERE WAS A LOSS OF SEPARATION BTWN ACFT X AND ACFT Y 1 MI N OF YOHAN INTXN, S ACFT X WAS ON DOGLEG TO JOIN THE ILS RWY 18R. ACFT Y WAS EXECUTING AN ILS RWY 17C, WAS S OF PENNY INTXN SECTION, AND WAS DSNDING THROUGH 4000 FT.
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.