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Flight crew of FK28 is cleared to descend but TCASII gives them a TA. As they level off a cessna passes under the aircraft nose.
| Attributes | |
| ACN | 385456 |
| Time | |
| Date | 199711 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : pdx |
| State Reference | OR |
| Altitude | msl bound lower : 9950 msl bound upper : 10000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pdx |
| Operator | common carrier : air carrier |
| Make Model Name | F28 Mk 6000 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Cessna 152 |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude cruise other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 4000 flight time type : 1800 |
| ASRS Report | 385456 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | conflict : nmac other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 150 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
Narrative:
TCASII gives TA of possible traffic. ATC gives clearance to 500 ft. Captain begins descent from 10000 ft then levels off at about 9950 ft as cessna travels under nose of aircraft. Other aircraft was a possible C150, C152.
Original NASA ASRS Text
Title: FLC OF FK28 IS CLRED TO DSND BUT TCASII GIVES THEM A TA. AS THEY LEVEL OFF A CESSNA PASSES UNDER THE ACFT NOSE.
Narrative: TCASII GIVES TA OF POSSIBLE TFC. ATC GIVES CLRNC TO 500 FT. CAPT BEGINS DSCNT FROM 10000 FT THEN LEVELS OFF AT ABOUT 9950 FT AS CESSNA TRAVELS UNDER NOSE OF ACFT. OTHER ACFT WAS A POSSIBLE C150, C152.
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.