 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Air carrier B727 flight crew questions approach clearance having previously being vectored and assigned a lower altitude to another runway.
| Attributes | |
| ACN | 439720 |
| Time | |
| Date | 199906 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : msp.airport |
| State Reference | MN |
| Altitude | msl bound lower : 3000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : m98.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : private pilot : instrument pilot : flight engineer pilot : commercial pilot : atp pilot : multi engine |
| Experience | flight time last 90 days : 200 flight time total : 6000 flight time type : 500 |
| ASRS Report | 439720 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : second officer |
| Qualification | pilot : multi engine pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 0 flight time total : 9000 flight time type : 500 |
| ASRS Report | 439630 |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : clearance non adherence : published procedure |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
While being radar vectored by approach control we received a turn to intercept the localizer and a descent clearance to 3000 ft which the PNF read back to the controller. After intercepting the localizer, approach control cleared us for the ILS approach with instructions to cross an intermediate fix at 4000 ft. The PNF told the approach controller that he had cleared us to 3000 ft previously and that we were currently at 3000 ft. He directed us to climb back to 4000 ft and reclred us for the ILS approach. All 3 cockpit crew members recall hearing '3000 ft' in the initial clearance and the controller did not correct us when the PNF read back the clearance as '3000 ft.' I think this was probably caused by confusion over which runway the controller was sending us to. Our runway assignment had changed twice and I think they may have been clearing aircraft for the parallel runway at 3000 ft.
Original NASA ASRS Text
Title: ACR B727 FLC QUESTIONS APCH CLRNC HAVING PREVIOUSLY BEING VECTORED AND ASSIGNED A LOWER ALT TO ANOTHER RWY.
Narrative: WHILE BEING RADAR VECTORED BY APCH CTL WE RECEIVED A TURN TO INTERCEPT THE LOC AND A DSCNT CLRNC TO 3000 FT WHICH THE PNF READ BACK TO THE CTLR. AFTER INTERCEPTING THE LOC, APCH CTL CLRED US FOR THE ILS APCH WITH INSTRUCTIONS TO CROSS AN INTERMEDIATE FIX AT 4000 FT. THE PNF TOLD THE APCH CTLR THAT HE HAD CLRED US TO 3000 FT PREVIOUSLY AND THAT WE WERE CURRENTLY AT 3000 FT. HE DIRECTED US TO CLB BACK TO 4000 FT AND RECLRED US FOR THE ILS APCH. ALL 3 COCKPIT CREW MEMBERS RECALL HEARING '3000 FT' IN THE INITIAL CLRNC AND THE CTLR DID NOT CORRECT US WHEN THE PNF READ BACK THE CLRNC AS '3000 FT.' I THINK THIS WAS PROBABLY CAUSED BY CONFUSION OVER WHICH RWY THE CTLR WAS SENDING US TO. OUR RWY ASSIGNMENT HAD CHANGED TWICE AND I THINK THEY MAY HAVE BEEN CLRING ACFT FOR THE PARALLEL RWY AT 3000 FT.
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.