 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Altitude deviation altitude excursion in flight crew pilot response to TCASII RA. Pilot elected to not follow heading given by ATC. Heading track deviation.
| Attributes | |
| ACN | 205844 |
| Time | |
| Date | 199203 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 10000 msl bound upper : 12800 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : dtw |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | departure other departure sid : sid enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : commercial pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 220 flight time total : 10000 flight time type : 6000 |
| ASRS Report | 205844 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : instrument pilot : atp pilot : commercial |
| Experience | flight time last 90 days : 220 flight time total : 6500 flight time type : 1500 |
| ASRS Report | 206163 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During the departure of flight X from dtw-syr on 3/92 a TCASII RA was issued. The altitude of flight X was 10000 ft on a heading of 120 degrees. The traffic aircraft Y, first appeared on TCASII as a yellow DOT, also at 10000 ft, at the edge of the warning area. Within a few seconds the yellow DOT changed to a red square. TCASII issued a RA of 2500 ft plus and announced 'climb, climb now.' at the same time the RA was issued ATC instructed us to turn to 050 degrees and maintain 10000 ft. We elected to follow the RA while in the climb and complying with the TCASII resolution, TCASII instructed us to 'increase climb.' at 12800 ft TCASII announced 'clear of conflict' and we leveled at 13000 ft still on a 120 degree heading. During the execution of the RA the vertical separation was as little as 0 ft to a maximum of 400 ft. The horizontal separation was indiscernible. Supplemental information from acn 206163. The horizontal separation was very small (the 2 symbols, our aircraft and the traffic, appeared almost colocated on the TCASII screen).
Original NASA ASRS Text
Title: ALTDEV ALT EXCURSION IN FLC PLT RESPONSE TO TCASII RA. PLT ELECTED TO NOT FOLLOW HDG GIVEN BY ATC. HDG TRACK DEV.
Narrative: DURING THE DEP OF FLT X FROM DTW-SYR ON 3/92 A TCASII RA WAS ISSUED. THE ALT OF FLT X WAS 10000 FT ON A HDG OF 120 DEGS. THE TFC ACFT Y, FIRST APPEARED ON TCASII AS A YELLOW DOT, ALSO AT 10000 FT, AT THE EDGE OF THE WARNING AREA. WITHIN A FEW SECONDS THE YELLOW DOT CHANGED TO A RED SQUARE. TCASII ISSUED A RA OF 2500 FT PLUS AND ANNOUNCED 'CLB, CLB NOW.' AT THE SAME TIME THE RA WAS ISSUED ATC INSTRUCTED US TO TURN TO 050 DEGS AND MAINTAIN 10000 FT. WE ELECTED TO FOLLOW THE RA WHILE IN THE CLB AND COMPLYING WITH THE TCASII RESOLUTION, TCASII INSTRUCTED US TO 'INCREASE CLB.' AT 12800 FT TCASII ANNOUNCED 'CLR OF CONFLICT' AND WE LEVELED AT 13000 FT STILL ON A 120 DEG HDG. DURING THE EXECUTION OF THE RA THE VERTICAL SEPARATION WAS AS LITTLE AS 0 FT TO A MAX OF 400 FT. THE HORIZ SEPARATION WAS INDISCERNIBLE. SUPPLEMENTAL INFO FROM ACN 206163. THE HORIZ SEPARATION WAS VERY SMALL (THE 2 SYMBOLS, OUR ACFT AND THE TFC, APPEARED ALMOST COLOCATED ON THE TCASII SCREEN).
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.