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Flight crew of a DC9-40 were given change of heading and then stop of climb and descent, during cruise altitude change. TCASII showed a target crossing over their intended flight path.
| Attributes | |
| ACN | 484217 |
| Time | |
| Date | 200009 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : bae.vortac |
| State Reference | WI |
| Altitude | msl bound lower : 31000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zau.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 40 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | cruise : enroute altitude change |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zau.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : flight engineer |
| Experience | flight time last 90 days : 210 flight time total : 16000 flight time type : 4000 |
| ASRS Report | 484217 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 180 flight time total : 5500 flight time type : 800 |
| ASRS Report | 484223 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar other controllera |
| Resolutory Action | controller : issued new clearance controller : separated traffic |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 27000 vertical : 600 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Handed over to ZAU on frequency 118.22. Cleared to FL330 was passing FL307 ft in climb. Asked rate of climb and given 320 degree heading. We did ask if FL310 would help. No response. Passing FL327 to level at FL330 we were given a 270 degree heading. ATC gave another aircraft a turn. We were then given a descent to FL310. Noticed traffic on TCASII at 3 O'clock position, at 4 1/2 mi, 600 ft above us. We did get a TA. Did call ZAU after landing in msp on my own. Manager on duty said they had an operational error and thanked me for calling.
Original NASA ASRS Text
Title: FLC OF A DC9-40 WERE GIVEN CHANGE OF HEADING AND THEN STOP OF CLB AND DSCNT, DURING CRUISE ALT CHANGE. TCASII SHOWED A TARGET XING OVER THEIR INTENDED FLT PATH.
Narrative: HANDED OVER TO ZAU ON FREQ 118.22. CLRED TO FL330 WAS PASSING FL307 FT IN CLB. ASKED RATE OF CLB AND GIVEN 320 DEG HDG. WE DID ASK IF FL310 WOULD HELP. NO RESPONSE. PASSING FL327 TO LEVEL AT FL330 WE WERE GIVEN A 270 DEG HDG. ATC GAVE ANOTHER ACFT A TURN. WE WERE THEN GIVEN A DSCNT TO FL310. NOTICED TFC ON TCASII AT 3 O'CLOCK POS, AT 4 1/2 MI, 600 FT ABOVE US. WE DID GET A TA. DID CALL ZAU AFTER LNDG IN MSP ON MY OWN. MGR ON DUTY SAID THEY HAD AN OPERROR AND THANKED ME FOR CALLING.
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.