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Air carrier X TCASII RA (caused by climbing cpr Z) non adherence to ATC clearance unauthorized climb from assigned altitude had less than standard separation from air carrier Y. Pilot deviation. Evasive action taken.
| Attributes | |
| ACN | 234757 |
| Time | |
| Date | 199302 |
| Day | Thu |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : dtw |
| State Reference | MI |
| Altitude | msl bound lower : 10000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Light Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | cruise other |
| Route In Use | enroute : direct enroute airway : dtw |
| 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 | government : faa |
| Function | controller : approach |
| Qualification | controller : radar |
| Experience | controller military : 7 controller non radar : 2 controller radar : 12 |
| ASRS Report | 234757 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 500 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Air carrier X was arriving to dtw at 11000 ft. Air carrier Y was also arriving to dtw at 12000 ft. Air carrier Y was directly above air carrier X with the same direction of flight. Cpr Z was departing dtw climbing to 10000 ft. Cpr Z was climbing out sebound with air carrier X at his 2 O'clock position and 1 mi 9800 ft leveling off at 10000 ft. Air carrier X was level at 11000 ft with cpr Z at his 10 O'clock position and was flying nwbound. Air carrier X reported an RA and climbed 500 ft. Traffic was issued to air carrier X on the departure cpr Z. I issued traffic to air carrier X on air carrier Y and he reported the traffic in sight. Air carrier X leveled at 11500 ft with air carrier Y at his 12 O'clock position and 1 mi. Corrective action: replace the old TCASII equipment with the newest version immediately. This old equipment is too sensitive and is causing too many problems. Cpr Z leveled at 10000 ft as he should have and was no factor with air carrier X. The TCASII of air carrier X caused a loss of separation between air carrier X and air carrier Y. The pilot of air carrier X reported cpr Z (the departure) in sight, then initiated a climb as he is directed to do. A visual sighting of conflicting traffic should allow a pilot to remain where he is, and not climb.
Original NASA ASRS Text
Title: ACR X TCASII RA (CAUSED BY CLBING CPR Z) NON ADHERENCE TO ATC CLRNC UNAUTH CLB FROM ASSIGNED ALT HAD LTSS FROM ACR Y. PLTDEV. EVASIVE ACTION TAKEN.
Narrative: ACR X WAS ARRIVING TO DTW AT 11000 FT. ACR Y WAS ALSO ARRIVING TO DTW AT 12000 FT. ACR Y WAS DIRECTLY ABOVE ACR X WITH THE SAME DIRECTION OF FLT. CPR Z WAS DEPARTING DTW CLBING TO 10000 FT. CPR Z WAS CLBING OUT SEBOUND WITH ACR X AT HIS 2 O'CLOCK POS AND 1 MI 9800 FT LEVELING OFF AT 10000 FT. ACR X WAS LEVEL AT 11000 FT WITH CPR Z AT HIS 10 O'CLOCK POS AND WAS FLYING NWBOUND. ACR X RPTED AN RA AND CLBED 500 FT. TFC WAS ISSUED TO ACR X ON THE DEP CPR Z. I ISSUED TFC TO ACR X ON ACR Y AND HE RPTED THE TFC IN SIGHT. ACR X LEVELED AT 11500 FT WITH ACR Y AT HIS 12 O'CLOCK POS AND 1 MI. CORRECTIVE ACTION: REPLACE THE OLD TCASII EQUIP WITH THE NEWEST VERSION IMMEDIATELY. THIS OLD EQUIP IS TOO SENSITIVE AND IS CAUSING TOO MANY PROBS. CPR Z LEVELED AT 10000 FT AS HE SHOULD HAVE AND WAS NO FACTOR WITH ACR X. THE TCASII OF ACR X CAUSED A LOSS OF SEPARATION BTWN ACR X AND ACR Y. THE PLT OF ACR X RPTED CPR Z (THE DEP) IN SIGHT, THEN INITIATED A CLB AS HE IS DIRECTED TO DO. A VISUAL SIGHTING OF CONFLICTING TFC SHOULD ALLOW A PLT TO REMAIN WHERE HE IS, AND NOT CLB.
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.