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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Aircraft following profile procedures reached a clearance limit without receiving further clearance from approach control. Reporter captain assumed he should follow the DME arc. ATC intervened with a new clearance heading. Profile procedure should have note advising flcs to expect radar vector after the 26 DME or otherwise alert flcs what to expect if no communication.
| Attributes | |
| ACN | 356928 |
| Time | |
| Date | 199612 |
| Day | Sun |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : yyz |
| State Reference | ON |
| Altitude | msl bound lower : 11000 msl bound upper : 11000 |
| Environment | |
| Flight Conditions | IMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : yyz |
| Operator | common carrier : air carrier |
| Make Model Name | B727-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | arrival : profile descent arrival other arrival star : star |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 135 flight time total : 14000 flight time type : 2000 |
| ASRS Report | 356928 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
| Situations | |
| ATC Facility | procedure or policy : unspecified |
Narrative:
Air carrier flight dtw-yyz dec/xx/96. We were cleared profile descent runway 33 toronto inbound from ywt VOR. I crossed ywt between 17000 ft and 13000 ft and crossed yyz 26 DME arc at 11000 ft 250 KTS. I did not see any 'except radar vectors to final' on the plate and misread the yyz 26 DME arc to be flown to the southeast to line up with runway 33 ILS. After I made turn for the arc ATC asked us what our heading was and gave us a vector of 60 degrees. I flew their headings to downwind and landed runway 33 ILS at yyz. I feel that I misread the plate because I believed that the arc was to be flown since the arc line is depicted on the chart, instead of just a crossing restr being shown. And no 'except radar vectors to final approach course' and arrows shown on the chart as I have seen on other profile dscnts.
Original NASA ASRS Text
Title: ACFT FOLLOWING PROFILE PROCS REACHED A CLRNC LIMIT WITHOUT RECEIVING FURTHER CLRNC FROM APCH CTL. RPTR CAPT ASSUMED HE SHOULD FOLLOW THE DME ARC. ATC INTERVENED WITH A NEW CLRNC HDG. PROFILE PROC SHOULD HAVE NOTE ADVISING FLCS TO EXPECT RADAR VECTOR AFTER THE 26 DME OR OTHERWISE ALERT FLCS WHAT TO EXPECT IF NO COM.
Narrative: ACR FLT DTW-YYZ DEC/XX/96. WE WERE CLRED PROFILE DSCNT RWY 33 TORONTO INBOUND FROM YWT VOR. I CROSSED YWT BTWN 17000 FT AND 13000 FT AND CROSSED YYZ 26 DME ARC AT 11000 FT 250 KTS. I DID NOT SEE ANY 'EXCEPT RADAR VECTORS TO FINAL' ON THE PLATE AND MISREAD THE YYZ 26 DME ARC TO BE FLOWN TO THE SE TO LINE UP WITH RWY 33 ILS. AFTER I MADE TURN FOR THE ARC ATC ASKED US WHAT OUR HDG WAS AND GAVE US A VECTOR OF 60 DEGS. I FLEW THEIR HDGS TO DOWNWIND AND LANDED RWY 33 ILS AT YYZ. I FEEL THAT I MISREAD THE PLATE BECAUSE I BELIEVED THAT THE ARC WAS TO BE FLOWN SINCE THE ARC LINE IS DEPICTED ON THE CHART, INSTEAD OF JUST A XING RESTR BEING SHOWN. AND NO 'EXCEPT RADAR VECTORS TO FINAL APCH COURSE' AND ARROWS SHOWN ON THE CHART AS I HAVE SEEN ON OTHER PROFILE DSCNTS.
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.