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ARTCC called for an 'immediate' turn accompanied by a 'traffic' TA from TCASII. Pilot aggressively turned and broke a descent. 2 flight attendants were injured.
| Attributes | |
| ACN | 469928 |
| Time | |
| Date | 200004 |
| Day | Mon |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| State Reference | NM |
| Altitude | msl bound lower : 33300 msl bound upper : 33600 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zab.artcc |
| Operator | Other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 250 flight time total : 19000 flight time type : 2500 |
| ASRS Report | 469928 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Events | |
| Anomaly | cabin event other conflict : airborne less severe |
| Independent Detector | aircraft equipment : tcas other controllera other flight crewa |
| Resolutory Action | controller : separated traffic flight crew : took evasive action other |
| Consequence | other |
| Miss Distance | horizontal : 18000 vertical : 300 |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
During an ATC commanded descent from FL350 to FL310, ATC called at approximately FL333 with 'air carrier X turn immediately to 270 degree heading.' at this same time we also received a 'traffic, traffic' alert on TCASII. We had TCASII on 40 NM range. Traffic appeared directly ahead on TCASII and 300 ft low. As we were descending at 1000 FPM, I applied back pressure to yoke, started my turn, and disconnected the autoplt. A significantly hard pitch up occurred. We reported TCASII event to ATC and when clear of traffic returned to course and descent to FL310. 2 flight attendants, in aisle with serving cart, were thrown to floor and injured. We completed flight and called emt's for the flight attendants. Callback conversation with reporter revealed the following information: reporter said that there was no TCASII RA but that he estimated the miss distance at 300 ft and 3 mi. Injuries were minor to both flight attendants.
Original NASA ASRS Text
Title: ARTCC CALLED FOR AN 'IMMEDIATE' TURN ACCOMPANIED BY A 'TFC' TA FROM TCASII. PLT AGGRESSIVELY TURNED AND BROKE A DSCNT. 2 FLT ATTENDANTS WERE INJURED.
Narrative: DURING AN ATC COMMANDED DSCNT FROM FL350 TO FL310, ATC CALLED AT APPROX FL333 WITH 'ACR X TURN IMMEDIATELY TO 270 DEG HDG.' AT THIS SAME TIME WE ALSO RECEIVED A 'TFC, TFC' ALERT ON TCASII. WE HAD TCASII ON 40 NM RANGE. TFC APPEARED DIRECTLY AHEAD ON TCASII AND 300 FT LOW. AS WE WERE DSNDING AT 1000 FPM, I APPLIED BACK PRESSURE TO YOKE, STARTED MY TURN, AND DISCONNECTED THE AUTOPLT. A SIGNIFICANTLY HARD PITCH UP OCCURRED. WE RPTED TCASII EVENT TO ATC AND WHEN CLR OF TFC RETURNED TO COURSE AND DSCNT TO FL310. 2 FLT ATTENDANTS, IN AISLE WITH SERVING CART, WERE THROWN TO FLOOR AND INJURED. WE COMPLETED FLT AND CALLED EMT'S FOR THE FLT ATTENDANTS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR SAID THAT THERE WAS NO TCASII RA BUT THAT HE ESTIMATED THE MISS DISTANCE AT 300 FT AND 3 MI. INJURIES WERE MINOR TO BOTH FLT ATTENDANTS.
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.