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|
Attributes | |
ACN | 636582 |
Time | |
Date | 200411 |
Day | Mon |
Local Time Of Day | 1201 To 1800 |
Place | |
Locale Reference | navaid : vhp.vortac |
State Reference | IN |
Altitude | msl bound lower : 28000 msl bound upper : 29000 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Controlling Facilities | artcc : zid.artcc |
Operator | common carrier : air carrier |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | Part 121 |
Flight Phase | descent : intermediate altitude descent : vacating altitude |
Flight Plan | IFR |
Aircraft 2 | |
Controlling Facilities | artcc : zid.artcc |
Operator | common carrier : air carrier |
Make Model Name | Commercial Fixed Wing |
Operating Under FAR Part | Part 121 |
Flight Phase | cruise : level |
Flight Plan | IFR |
Person 1 | |
Affiliation | government : faa |
Function | controller : radar |
Qualification | controller : radar |
Experience | controller radar : 10 |
ASRS Report | 636582 |
Person 2 | |
Affiliation | government : faa |
Function | controller : radar |
Qualification | controller : radar |
Experience | controller time certified in position1 : 4 |
ASRS Report | 636778 |
Events | |
Anomaly | altitude deviation : excursion from assigned altitude non adherence : required legal separation non adherence : published procedure non adherence : clearance |
Independent Detector | atc equipment : conflict alert other controllera other controllerb |
Resolutory Action | none taken : detected after the fact |
Consequence | faa : investigated |
Supplementary | |
Problem Areas | ATC Human Performance |
Primary Problem | ATC Human Performance |
Air Traffic Incident | Operational Error |
Narrative:
Air carrier X was issued descent to FL270, correction FL290, no delay to FL290. Air carrier X read back 'descend to FL220, no delay through FL290.' I missed the readback. Supplemental information from acn 636778: air carrier Y at FL280 switched to 133.42. Air carrier X descended to FL270. Correction FL290, no delay to FL290. Air carrier X read back FL270, no delay through FL290.
Original NASA ASRS Text
Title: AN AMENDED CLRNC ISSUED BY A ZID ARTCC RADAR CTLR IS MISINTERPED BY AN ACR CREW RESULTING IN A LOSS OF SEPARATION. THE CTLR MISSED THE INCORRECT READBACK.
Narrative: ACR X WAS ISSUED DSCNT TO FL270, CORRECTION FL290, NO DELAY TO FL290. ACR X READ BACK 'DSND TO FL220, NO DELAY THROUGH FL290.' I MISSED THE READBACK. SUPPLEMENTAL INFO FROM ACN 636778: ACR Y AT FL280 SWITCHED TO 133.42. ACR X DSNDED TO FL270. CORRECTION FL290, NO DELAY TO FL290. ACR X READ BACK FL270, NO DELAY THROUGH FL290.
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.