 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Pilot deviation less than standard separation when commuter SW3 descends below 16000 ft and conflicts with commuter DH8 at 15000 ft. Reporter had issued traffic to each aircraft.
| Attributes | |
| ACN | 364360 |
| Time | |
| Date | 199703 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pjm |
| State Reference | VI |
| Altitude | msl bound lower : 15300 msl bound upper : 16000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : tjzs |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Merlin III |
| Operating Under FAR Part | Part 135 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 10 |
| ASRS Report | 364360 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : overshoot conflict : nmac non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | none taken : detected after the fact none taken : unable |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Aircraft #1 was swbound climbing to 15000 ft. Aircraft #2 was nebound descending to 16000 ft. Traffic was issued to aircraft #1 and aircraft #2. Aircraft #2 descended below his assigned altitude. Aircraft #1 reported TCASII RA and advised of only 300 ft separation.
Original NASA ASRS Text
Title: PLTDEV LTSS WHEN COMMUTER SW3 DSNDS BELOW 16000 FT AND CONFLICTS WITH COMMUTER DH8 AT 15000 FT. RPTR HAD ISSUED TFC TO EACH ACFT.
Narrative: ACFT #1 WAS SWBOUND CLBING TO 15000 FT. ACFT #2 WAS NEBOUND DSNDING TO 16000 FT. TFC WAS ISSUED TO ACFT #1 AND ACFT #2. ACFT #2 DSNDED BELOW HIS ASSIGNED ALT. ACFT #1 RPTED TCASII RA AND ADVISED OF ONLY 300 FT SEPARATION.
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.