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An A300 crew, level at FL270, responded to what they thought was a clearance to FL310. ATC informed them they were not cleared above FL270.
| Attributes | |
| ACN | 531060 |
| Time | |
| Date | 200111 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : dqn.vortac |
| State Reference | OH |
| Altitude | msl single value : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zid.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A300 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : cfi pilot : atp pilot : flight engineer pilot : multi engine pilot : instrument |
| Experience | flight time last 90 days : 30 flight time total : 8000 flight time type : 240 |
| ASRS Report | 531080 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude non adherence : published procedure non adherence : clearance non adherence : far other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Consequence | faa : reviewed incident with flight crew |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
En route from cvg to jfk, we were climbing and with ZID. We had leveled off at FL270. The captain responded to and read back a clearance to climb to FL310. I initiated the climb. As we were climbing through FL283, ZID called us and said 'stop your climb at FL290, you were not cleared above FL270.' we complied and stopped the climb at FL290. We advised ATC that we had received and read back a clearance to FL310 and he said 'I don't know where you got that from.' this may have been potentially dangerous as part 121 freighters are not required to have TCASII yet. We don't know if there was a traffic conflict or not. Contributing factors: at the time the climb clearance was received (FL270 climbing to FL310), the first officer and flight engineer were talking about something else and the first officer did not hear the climb clearance, only the captain's readback.
Original NASA ASRS Text
Title: AN A300 CREW, LEVEL AT FL270, RESPONDED TO WHAT THEY THOUGHT WAS A CLRNC TO FL310. ATC INFORMED THEM THEY WERE NOT CLRED ABOVE FL270.
Narrative: ENRTE FROM CVG TO JFK, WE WERE CLBING AND WITH ZID. WE HAD LEVELED OFF AT FL270. THE CAPT RESPONDED TO AND READ BACK A CLRNC TO CLB TO FL310. I INITIATED THE CLB. AS WE WERE CLBING THROUGH FL283, ZID CALLED US AND SAID 'STOP YOUR CLB AT FL290, YOU WERE NOT CLRED ABOVE FL270.' WE COMPLIED AND STOPPED THE CLB AT FL290. WE ADVISED ATC THAT WE HAD RECEIVED AND READ BACK A CLRNC TO FL310 AND HE SAID 'I DON'T KNOW WHERE YOU GOT THAT FROM.' THIS MAY HAVE BEEN POTENTIALLY DANGEROUS AS PART 121 FREIGHTERS ARE NOT REQUIRED TO HAVE TCASII YET. WE DON'T KNOW IF THERE WAS A TFC CONFLICT OR NOT. CONTRIBUTING FACTORS: AT THE TIME THE CLB CLRNC WAS RECEIVED (FL270 CLBING TO FL310), THE FO AND FE WERE TALKING ABOUT SOMETHING ELSE AND THE FO DID NOT HEAR THE CLB CLRNC, ONLY THE CAPT'S READBACK.
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.