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An air carrier MD90 crew exceeded 250 KTS below 10000 ft while looking for traffic. Far violation. TCASII and ARTCC pointed out the traffic. See and avoid. Near midair collision.
| Attributes | |
| ACN | 347147 |
| Time | |
| Date | 199609 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : sjc |
| State Reference | CA |
| Altitude | msl bound lower : 5000 msl bound upper : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sjc |
| Operator | common carrier : air carrier |
| Make Model Name | Eagle (F-15) |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude cruise other |
| Route In Use | departure other departure sid : sid |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Cessna Single Piston Undifferentiated or Other Model |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 9000 flight time type : 2000 |
| ASRS Report | 347147 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | conflict : nmac non adherence : far other anomaly other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : became reoriented flight crew : returned to intended course or assigned course flight crew : took evasive action |
| Consequence | Other |
| Miss Distance | horizontal : 0 vertical : 300 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
In the first turn departing sjc, ATC issued a TA -- we acquired the traffic and were given a 'maintain visual separation and climb and maintain FL230.' we lost sight of the traffic, but the target on the TCASII indicated he had changed direction and was converging with us. The frequency was busy, so I directed the first officer to level at 5000 ft. I was scanning for the traffic and watching the TCASII when we got the 'RA.' my attention was focused on finding the traffic and monitoring the TCASII. I acquired the traffic and we were going to clear. At that moment ATC gave us another update and we acknowledged traffic in sight, maintaining 5000 ft. Then I noticed that the FMS, which was engaged in VNAV, had not honored the 250 KTS below 10000 ft restr even though the speed bug was at 250 KIAS. We had accelerated to 300 KIAS while avoiding the traffic. The speed excursion lasted about 30 seconds. Once clear of the traffic, we continued our climb. We were totally focused on avoiding the traffic and 'unknowingly' allowed the speed to increase.
Original NASA ASRS Text
Title: AN ACR MD90 CREW EXCEEDED 250 KTS BELOW 10000 FT WHILE LOOKING FOR TFC. FAR VIOLATION. TCASII AND ARTCC POINTED OUT THE TFC. SEE AND AVOID. NMAC.
Narrative: IN THE FIRST TURN DEPARTING SJC, ATC ISSUED A TA -- WE ACQUIRED THE TFC AND WERE GIVEN A 'MAINTAIN VISUAL SEPARATION AND CLB AND MAINTAIN FL230.' WE LOST SIGHT OF THE TFC, BUT THE TARGET ON THE TCASII INDICATED HE HAD CHANGED DIRECTION AND WAS CONVERGING WITH US. THE FREQ WAS BUSY, SO I DIRECTED THE FO TO LEVEL AT 5000 FT. I WAS SCANNING FOR THE TFC AND WATCHING THE TCASII WHEN WE GOT THE 'RA.' MY ATTN WAS FOCUSED ON FINDING THE TFC AND MONITORING THE TCASII. I ACQUIRED THE TFC AND WE WERE GOING TO CLR. AT THAT MOMENT ATC GAVE US ANOTHER UPDATE AND WE ACKNOWLEDGED TFC IN SIGHT, MAINTAINING 5000 FT. THEN I NOTICED THAT THE FMS, WHICH WAS ENGAGED IN VNAV, HAD NOT HONORED THE 250 KTS BELOW 10000 FT RESTR EVEN THOUGH THE SPD BUG WAS AT 250 KIAS. WE HAD ACCELERATED TO 300 KIAS WHILE AVOIDING THE TFC. THE SPD EXCURSION LASTED ABOUT 30 SECONDS. ONCE CLR OF THE TFC, WE CONTINUED OUR CLB. WE WERE TOTALLY FOCUSED ON AVOIDING THE TFC AND 'UNKNOWINGLY' ALLOWED THE SPD TO INCREASE.
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.