 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
ZBW controller experienced operational error at FL220 attempting to separate holding and WX deviation aircraft.
| Attributes | |
| ACN | 662981 |
| Time | |
| Date | 200506 |
| Place | |
| Locale Reference | navaid : hto.vortac |
| State Reference | NY |
| Altitude | msl single value : 22000 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B737-800 |
| 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 : 20 controller time certified in position1 : 20 |
| ASRS Report | 662981 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert controller : issued new clearance |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 18000 vertical : 500 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier X cleared to 14000 ft with holding instructions; when noticed in conflict with air carrier Y deviating for WX at FL210. Issued amended clearance to air carrier X while FL224 showed on data block. Air carrier X descended to FL215 and in conflict with air carrier Y.
Original NASA ASRS Text
Title: ZBW CTLR EXPERIENCED OPERROR AT FL220 ATTEMPTING TO SEPARATE HOLDING AND WX DEV ACFT.
Narrative: ACR X CLRED TO 14000 FT WITH HOLDING INSTRUCTIONS; WHEN NOTICED IN CONFLICT WITH ACR Y DEVIATING FOR WX AT FL210. ISSUED AMENDED CLRNC TO ACR X WHILE FL224 SHOWED ON DATA BLOCK. ACR X DSNDED TO FL215 AND IN CONFLICT WITH ACR Y.
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.