 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
DH8A crew had near midair collision with a C337 in abe class east airspace.
| Attributes | |
| ACN | 511208 |
| Time | |
| Date | 200105 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ptw.airport |
| State Reference | PA |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Weather Elements | other |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : abe.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Dash 8 Series Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : abe.tracon |
| Make Model Name | Skyhawk 172/Cutlass 172 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise : level |
| Flight Plan | VFR |
| 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 : 13000 flight time type : 3000 |
| ASRS Report | 511208 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | atc equipment other atc equipment : conflict alert aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action none taken : detected after the fact |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 100 vertical : 100 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Airspace Structure FAA |
| Primary Problem | Ambiguous |
Narrative:
On our flight from swf direct phl, we were being vectored by abe approach for spacing into phl. We were given a 270 degree heading at 8000 ft. After a few mi we were given a descent to 5000 ft. Through 6500 ft we were given a turn to 180 degrees. TCASII showed traffic below us at 4500 ft. We were looking for that traffic when we rolled out on a 180 degree heading at 5000 ft (230 KTS). Just as we rolled out and leveled, I saw a sky master at 12 O'clock position at our altitude heading for us. As evasive action of a diving right turn had us pass this aircraft 100 ft vertical and 1000 ft horizontal. We then got an RA because of the traffic at 4500 ft. I then climbed and turned back to a 180 degree heading. Reported the near miss to abe. After the report, they said the sky master (084 identify) did not have his transponder on. They tracked the primary target until they lost him north of the etx VOR. Company traffic 5 mi behind us confirmed the aircraft was at 5000 ft heading north. The aircraft never took evasive action and seemed to be flying V29 (VFR) at the altitude of 5000 ft. I would really like to know what this guy was thinking. But I doubt he was paying attention, otherwise he would have turned. It was that close!
Original NASA ASRS Text
Title: DH8A CREW HAD NMAC WITH A C337 IN ABE CLASS E AIRSPACE.
Narrative: ON OUR FLT FROM SWF DIRECT PHL, WE WERE BEING VECTORED BY ABE APCH FOR SPACING INTO PHL. WE WERE GIVEN A 270 DEG HDG AT 8000 FT. AFTER A FEW MI WE WERE GIVEN A DSCNT TO 5000 FT. THROUGH 6500 FT WE WERE GIVEN A TURN TO 180 DEGS. TCASII SHOWED TFC BELOW US AT 4500 FT. WE WERE LOOKING FOR THAT TFC WHEN WE ROLLED OUT ON A 180 DEG HDG AT 5000 FT (230 KTS). JUST AS WE ROLLED OUT AND LEVELED, I SAW A SKY MASTER AT 12 O'CLOCK POS AT OUR ALT HDG FOR US. AS EVASIVE ACTION OF A DIVING R TURN HAD US PASS THIS ACFT 100 FT VERT AND 1000 FT HORIZ. WE THEN GOT AN RA BECAUSE OF THE TFC AT 4500 FT. I THEN CLBED AND TURNED BACK TO A 180 DEG HDG. RPTED THE NEAR MISS TO ABE. AFTER THE RPT, THEY SAID THE SKY MASTER (084 IDENT) DID NOT HAVE HIS XPONDER ON. THEY TRACKED THE PRIMARY TARGET UNTIL THEY LOST HIM N OF THE ETX VOR. COMPANY TFC 5 MI BEHIND US CONFIRMED THE ACFT WAS AT 5000 FT HDG N. THE ACFT NEVER TOOK EVASIVE ACTION AND SEEMED TO BE FLYING V29 (VFR) AT THE ALT OF 5000 FT. I WOULD REALLY LIKE TO KNOW WHAT THIS GUY WAS THINKING. BUT I DOUBT HE WAS PAYING ATTN, OTHERWISE HE WOULD HAVE TURNED. IT WAS THAT CLOSE!
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.