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Reporter had flown multiple approachs recently to the same airport runway and had been cleared to intercept the localizer at 3600 ft. This time the clearance was to 4600 ft. Either the flight crew didn't read back the altitude, or if they did, the controller missed the altitude readback.
| Attributes | |
| ACN | 332500 |
| Time | |
| Date | 199603 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : clt |
| State Reference | NC |
| Altitude | msl bound lower : 3600 msl bound upper : 4600 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : clt |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 175 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 332500 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 170 flight time total : 9300 flight time type : 3000 |
| ASRS Report | 331957 |
| Events | |
| Anomaly | altitude deviation : overshoot non adherence : clearance other anomaly other |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Having flown multiple approachs to clt and runway 36L during month of march, including three that week, and being cleared to 3600 ft during descent to intercept localizer or visual on this approach, we were apparently cleared to 4600 ft instead of 3600 ft. We set and descended to 3600 ft. The use of altitudes of 1000 ft apart from simultaneous approachs with similar sounding call signs and intermixing them when using visual versus simultaneous approachs, sets up crew for breakdown in communication.
Original NASA ASRS Text
Title: RPTR HAD FLOWN MULTIPLE APCHS RECENTLY TO THE SAME ARPT RWY AND HAD BEEN CLRED TO INTERCEPT THE LOC AT 3600 FT. THIS TIME THE CLRNC WAS TO 4600 FT. EITHER THE FLC DIDN'T READ BACK THE ALT, OR IF THEY DID, THE CTLR MISSED THE ALT READBACK.
Narrative: HAVING FLOWN MULTIPLE APCHS TO CLT AND RWY 36L DURING MONTH OF MARCH, INCLUDING THREE THAT WK, AND BEING CLRED TO 3600 FT DURING DSCNT TO INTERCEPT LOC OR VISUAL ON THIS APCH, WE WERE APPARENTLY CLRED TO 4600 FT INSTEAD OF 3600 FT. WE SET AND DSNDED TO 3600 FT. THE USE OF ALTS OF 1000 FT APART FROM SIMULTANEOUS APCHS WITH SIMILAR SOUNDING CALL SIGNS AND INTERMIXING THEM WHEN USING VISUAL VERSUS SIMULTANEOUS APCHS, SETS UP CREW FOR BREAKDOWN IN COM.
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.