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ATCT local controller clears CL65 for takeoff, overtaking B737 on same SID. TRACON controller does not have sufficient time to resolve overtake situation prior to occurring error.
| Attributes | |
| ACN | 397354 |
| Time | |
| Date | 199803 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : phl |
| State Reference | PA |
| Altitude | msl bound lower : 3800 msl bound upper : 3800 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : phl |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure other departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure |
| Qualification | controller : radar pilot : instrument |
| Experience | controller radar : 9 flight time total : 1200 |
| ASRS Report | 397354 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : local |
| Qualification | controller : radar |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : published procedure non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : insufficient time |
| Consequence | Other |
| Miss Distance | horizontal : 3000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Tower didn't separate aircraft #1 from aircraft #2 on departure SID. Aircraft #2 outclbed and was faster on climb out.
Original NASA ASRS Text
Title: ATCT LCL CTLR CLRS CL65 FOR TKOF, OVERTAKING B737 ON SAME SID. TRACON CTLR DOES NOT HAVE SUFFICIENT TIME TO RESOLVE OVERTAKE SIT PRIOR TO OCCURRING ERROR.
Narrative: TWR DIDN'T SEPARATE ACFT #1 FROM ACFT #2 ON DEP SID. ACFT #2 OUTCLBED AND WAS FASTER ON CLBOUT.
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.