|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||intersection : jayja|
|Altitude||msl bound lower : 27000|
msl bound upper : 29000
|Operator||common carrier : air taxi|
|Make Model Name||Falcon 20FJF/20C/20D/20E/20F|
|Flight Phase||descent : intermediate altitude|
|Route In Use||arrival star : lzard|
|Affiliation||company : air taxi|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
pilot : cfi
|Experience||flight time last 90 days : 103|
flight time total : 3377
flight time type : 1934
|Anomaly||inflight encounter : weather|
inflight encounter other
other anomaly other
|Resolutory Action||controller : issued alert|
controller : issued new clearance
|Problem Areas||Flight Crew Human Performance|
ATC Human Performance
|Primary Problem||ATC Human Performance|
|Air Traffic Incident||other|
We had already begun the turn and descent. While approaching FL270 in the descent, ATC told us to stop our descent at FL270 and to slow to 250 KTS at this time. By the tone in ATC's voice, I could tell something wasn't exactly right. I questioned ATC to verify that the previous instruction was to descend to FL250. ATC stated that was not the case and that he wanted us to slow to 250 KTS, but now we could stay at FL270 and that was ok. I immediately asked the first officer what exactly was said between him and ATC. The first officer said he was positive that the controller told him to descend to FL250 and that he readback that we would descend to FL250. Furthermore, the first officer stated that the controller had made a similar mistake with another aircraft while I was off frequency. The biggest issue for myself is that I was not monitoring center while I was talking to flight service. As a result, I don't know exactly what was said between center and the first officer. I should have monitored center at the same time I was talking to flight service. This way I could have possibly caught a mistake if one actually occurred.
Original NASA ASRS Text
Title: FA20 CREW RPTED THE CTLR ISSUED ACFT ALTS HE LATER QUESTIONED.
Narrative: WE HAD ALREADY BEGUN THE TURN AND DSCNT. WHILE APCHING FL270 IN THE DSCNT, ATC TOLD US TO STOP OUR DSCNT AT FL270 AND TO SLOW TO 250 KTS AT THIS TIME. BY THE TONE IN ATC'S VOICE, I COULD TELL SOMETHING WASN'T EXACTLY R. I QUESTIONED ATC TO VERIFY THAT THE PREVIOUS INSTRUCTION WAS TO DSND TO FL250. ATC STATED THAT WAS NOT THE CASE AND THAT HE WANTED US TO SLOW TO 250 KTS, BUT NOW WE COULD STAY AT FL270 AND THAT WAS OK. I IMMEDIATELY ASKED THE FO WHAT EXACTLY WAS SAID BTWN HIM AND ATC. THE FO SAID HE WAS POSITIVE THAT THE CTLR TOLD HIM TO DSND TO FL250 AND THAT HE READBACK THAT WE WOULD DSND TO FL250. FURTHERMORE, THE FO STATED THAT THE CTLR HAD MADE A SIMILAR MISTAKE WITH ANOTHER ACFT WHILE I WAS OFF FREQ. THE BIGGEST ISSUE FOR MYSELF IS THAT I WAS NOT MONITORING CTR WHILE I WAS TALKING TO FLT SERVICE. AS A RESULT, I DON'T KNOW EXACTLY WHAT WAS SAID BTWN CTR AND THE FO. I SHOULD HAVE MONITORED CTR AT THE SAME TIME I WAS TALKING TO FLT SERVICE. THIS WAY I COULD HAVE POSSIBLY CAUGHT A MISTAKE IF ONE ACTUALLY OCCURRED.
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.