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A B757-200, descending at a high rate of descent, has an near midair collision with a learjet that had previously canceled IFR just after descending out of class a airspace east of ott VOR with ZDC, dc.
| Attributes | |
| ACN | 473611 |
| Time | |
| Date | 200005 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : ott.vortac |
| State Reference | MD |
| Altitude | msl bound lower : 17500 msl bound upper : 19500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other other vortac |
| Flight Phase | descent : vacating altitude |
| Route In Use | enroute airway : ns.airway |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Gates Learjet Corp Undifferentiated or Other Model |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | other vortac |
| Flight Phase | descent : intermediate altitude |
| Route In Use | enroute airway : ns.airway |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 16000 flight time type : 200 |
| ASRS Report | 473611 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : multi engine pilot : instrument |
| Events | |
| Anomaly | conflict : nmac non adherence : published procedure non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew other |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance Airspace Structure |
| Primary Problem | ATC Human Performance |
Narrative:
Problem: learjet canceled IFR. We were given a crossing restr. We descend from 24000 ft to 15000 ft. Descending at 5500 FPM/320 KTS. At 19500 ft we get TCASII TA. We see the learjet at 2 O'clock position and 1 mi. We get an RA and start evasive action. We pass over the top of the lear. Don't know if he saw us. Controller said nothing, but we gave him an ear full. Thank god for TCASII.
Original NASA ASRS Text
Title: A B757-200, DSNDING AT A HIGH RATE OF DSCNT, HAS AN NMAC WITH A LEARJET THAT HAD PREVIOUSLY CANCELED IFR JUST AFTER DSNDING OUT OF CLASS A AIRSPACE EAST OF OTT VOR WITH ZDC, DC.
Narrative: PROB: LEARJET CANCELED IFR. WE WERE GIVEN A XING RESTR. WE DSND FROM 24000 FT TO 15000 FT. DSNDING AT 5500 FPM/320 KTS. AT 19500 FT WE GET TCASII TA. WE SEE THE LEARJET AT 2 O'CLOCK POS AND 1 MI. WE GET AN RA AND START EVASIVE ACTION. WE PASS OVER THE TOP OF THE LEAR. DON'T KNOW IF HE SAW US. CTLR SAID NOTHING, BUT WE GAVE HIM AN EAR FULL. THANK GOD FOR TCASII.
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.