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Flight crew of a B737-300 stopped descent and climbed back to their prior assigned altitude in response to a TCASII RA. After sighting the target aircraft, a cessna citation, the flight crew descended down to their newly assigned altitude.
| Attributes | |
| ACN | 368125 |
| Time | |
| Date | 199705 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : ard |
| State Reference | PA |
| Altitude | msl bound lower : 12500 msl bound upper : 13000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B737-300 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent other |
| Route In Use | arrival other arrival star : star enroute airway : phl |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Cessna Citation Undifferentiated or Other Model |
| Operating Under FAR Part | other : unknown |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | other other : other pilot : instrument pilot : atp pilot : cfi pilot : commercial |
| Experience | flight time last 90 days : 180 flight time total : 14000 flight time type : 6500 |
| ASRS Report | 368125 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 10800 flight time type : 5000 |
| ASRS Report | 368460 |
| Events | |
| Anomaly | altitude deviation : undershoot non adherence : required legal separation other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Miss Distance | horizontal : 15000 vertical : 0 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
ATC issued clearance from 13000 ft to 11000 ft. Traffic was called. Frequency change issued. Checked in new frequency, began descent. At 12500 ft, TCASII RA climbed back to 13000 ft. Got a visual on traffic and cleared. Resumed descent to 11000 ft.
Original NASA ASRS Text
Title: FLC OF A B737-300 STOPPED DSCNT AND CLBED BACK TO THEIR PRIOR ASSIGNED ALT IN RESPONSE TO A TCASII RA. AFTER SIGHTING THE TARGET ACFT, A CESSNA CITATION, THE FLC DSNDED DOWN TO THEIR NEWLY ASSIGNED ALT.
Narrative: ATC ISSUED CLRNC FROM 13000 FT TO 11000 FT. TFC WAS CALLED. FREQ CHANGE ISSUED. CHKED IN NEW FREQ, BEGAN DSCNT. AT 12500 FT, TCASII RA CLBED BACK TO 13000 FT. GOT A VISUAL ON TFC AND CLRED. RESUMED DSCNT TO 11000 FT.
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.