|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Local Time Of Day||0601 To 1200|
|Locale Reference||atc facility : rno|
|Altitude||msl bound lower : 24000|
msl bound upper : 28000
|Controlling Facilities||artcc : zoa|
|Operator||general aviation : corporate|
|Make Model Name||Small Transport, Low Wing, 2 Turbojet Eng|
|Flight Phase||cruise other|
|Function||flight crew : captain|
oversight : pic
|Qualification||pilot : atp|
|Experience||flight time last 90 days : 75|
flight time total : 12000
flight time type : 2500
|Function||flight crew : first officer|
|Qualification||pilot : commercial|
pilot : instrument
|Anomaly||altitude deviation : overshoot|
altitude deviation : excursion from assigned altitude
non adherence : clearance
other anomaly other
|Independent Detector||other controllera|
|Resolutory Action||controller : issued new clearance|
|Primary Problem||Flight Crew Human Performance|
|Air Traffic Incident||Pilot Deviation|
Flight was cleared to FL280 (descending) and given a heading. When reaching 28700' flight was told that upon reaching FL240 it would be cleared direct to destination instead of holding assigned heading. A frequency change was also given at this time. Flight acknowledged; roger 240, and changed frequency. New frequency was busy and when we were finally able to talk to controller we were nearly at FL240. New controller said we were only cleared to FL280. Upon re-contacting previous controller, he said he had only meant to tell us that upon reaching FL240 we would be cleared direct to destination, for planning purposes only. However, the crew understood that to be a clearance to FL240.
Original NASA ASRS Text
Title: CORP JET MISINTERP EXPECT CLRNC AND DESCENDED BELOW ASSIGNED ALT.
Narrative: FLT WAS CLRED TO FL280 (DESCENDING) AND GIVEN A HEADING. WHEN REACHING 28700' FLT WAS TOLD THAT UPON REACHING FL240 IT WOULD BE CLRED DIRECT TO DEST INSTEAD OF HOLDING ASSIGNED HEADING. A FREQ CHANGE WAS ALSO GIVEN AT THIS TIME. FLT ACKNOWLEDGED; ROGER 240, AND CHANGED FREQ. NEW FREQ WAS BUSY AND WHEN WE WERE FINALLY ABLE TO TALK TO CTLR WE WERE NEARLY AT FL240. NEW CTLR SAID WE WERE ONLY CLRED TO FL280. UPON RE-CONTACTING PREVIOUS CTLR, HE SAID HE HAD ONLY MEANT TO TELL US THAT UPON REACHING FL240 WE WOULD BE CLRED DIRECT TO DEST, FOR PLANNING PURPOSES ONLY. HOWEVER, THE CREW UNDERSTOOD THAT TO BE A CLRNC TO FL240.
Data retrieved from NASA's ASRS site as of August 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.