 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Flight crew of air carrier medium large transport aircraft received a TCASII alert on a descending mlt aircraft without time to take evasive action.
| Attributes | |
| ACN | 232472 |
| Time | |
| Date | 199301 |
| Day | Fri |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : ott |
| State Reference | MD |
| Altitude | msl bound lower : 20000 msl bound upper : 20000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Dusk |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc tower : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport |
| Flight Phase | cruise other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Military Transport |
| Flight Phase | descent other |
| Flight Plan | IFR |
| 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 : 6000 flight time type : 100 |
| ASRS Report | 232472 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Miss Distance | horizontal : 9000 vertical : 700 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | other |
Narrative:
Got TCASII alert followed by immediate visual contact with unspecified military aircraft at 10 O'clock, approximately 1 1/2 mi descending, northbound (slightly above). No time to respond. No warning from center. When we questioned ZDC, they informed us that the aircraft was level at FL220 with a faulty mode C. Aircraft was definitely not level!
Original NASA ASRS Text
Title: FLC OF ACR MLG ACFT RECEIVED A TCASII ALERT ON A DSNDING MLT ACFT WITHOUT TIME TO TAKE EVASIVE ACTION.
Narrative: GOT TCASII ALERT FOLLOWED BY IMMEDIATE VISUAL CONTACT WITH UNSPECIFIED MIL ACFT AT 10 O'CLOCK, APPROX 1 1/2 MI DSNDING, NBOUND (SLIGHTLY ABOVE). NO TIME TO RESPOND. NO WARNING FROM CTR. WHEN WE QUESTIONED ZDC, THEY INFORMED US THAT THE ACFT WAS LEVEL AT FL220 WITH A FAULTY MODE C. ACFT WAS DEFINITELY NOT LEVEL!
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.