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ZBW controller experienced operational error at FL280 with climbing/crossing traffic; observing one altitude in data block; but issuing another.
| Attributes | |
| ACN | 736689 |
| Time | |
| Date | 200704 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : orh.airport |
| State Reference | MA |
| Altitude | msl single value : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 700 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | general aviation : corporate |
| Make Model Name | Gulfstream II |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 736689 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | other controllera |
| Resolutory Action | none taken : anomaly accepted |
| Miss Distance | horizontal : 18000 vertical : 900 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
CRJ7 aircraft #1 at cruise FL280. Aircraft #2 climbing and crossing with aircraft #1. Aircraft #2 had FL270 in data block; but was inadvertently climbed to FL280 by ATC.
Original NASA ASRS Text
Title: ZBW CTLR EXPERIENCED OPERROR AT FL280 WITH CLIMBING/CROSSING TFC; OBSERVING ONE ALT IN DATA BLOCK; BUT ISSUING ANOTHER.
Narrative: CRJ7 ACFT #1 AT CRUISE FL280. ACFT #2 CLBING AND XING WITH ACFT #1. ACFT #2 HAD FL270 IN DATA BLOCK; BUT WAS INADVERTENTLY CLBED TO FL280 BY ATC.
Data retrieved from NASA's ASRS site as of January 2009 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.