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Air carrier large transport altitude deviation. Controller intended to clear the aircraft to FL290 but instead gave FL390 and then missed the readback.
| Attributes | |
| ACN | 164854 |
| Time | |
| Date | 199012 |
| Day | Fri |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : pit |
| State Reference | PA |
| Altitude | msl bound lower : 29000 msl bound upper : 30100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 2 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute airway : j211 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 150 flight time total : 9000 flight time type : 125 |
| ASRS Report | 164854 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : flight engineer pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 2600 flight time type : 360 |
| ASRS Report | 165330 |
| Events | |
| Anomaly | altitude deviation : overshoot other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course other |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Deviation |
Narrative:
We were step climbing to higher altitudes usually 2000' at a time. Level at FL280, washington center cleared to FL390. I read back FL390 and the first officer started the climb out of FL280. At FL30100, center called us and told us to descend back to FL290 at that is what he had cleared us to. We complied. After level at FL290, I asked him for a phone number of washington center. At that time he said 'no problem' if he had not caught my readback as FL390, 'it's my fault for not catching the error in your readback.' the rest of the flight was normal.
Original NASA ASRS Text
Title: ACR LGT ALT DEVIATION. CTLR INTENDED TO CLEAR THE ACFT TO FL290 BUT INSTEAD GAVE FL390 AND THEN MISSED THE READBACK.
Narrative: WE WERE STEP CLBING TO HIGHER ALTS USUALLY 2000' AT A TIME. LEVEL AT FL280, WASHINGTON CTR CLRED TO FL390. I READ BACK FL390 AND THE F/O STARTED THE CLBOUT OF FL280. AT FL30100, CTR CALLED US AND TOLD US TO DSND BACK TO FL290 AT THAT IS WHAT HE HAD CLRED US TO. WE COMPLIED. AFTER LEVEL AT FL290, I ASKED HIM FOR A PHONE NUMBER OF WASHINGTON CTR. AT THAT TIME HE SAID 'NO PROB' IF HE HAD NOT CAUGHT MY READBACK AS FL390, 'IT'S MY FAULT FOR NOT CATCHING THE ERROR IN YOUR READBACK.' THE REST OF THE FLT WAS NORMAL.
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.