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ZDC controller experienced operational error at FL360 as climb rate was misjudged based upon air carrier's past performance.
| Attributes | |
| ACN | 657320 |
| Time | |
| Date | 200509 |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | navaid : hvq.vortac |
| State Reference | WV |
| Altitude | msl single value : 36000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| 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 : 14 |
| ASRS Report | 657320 |
| 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 : 22800 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
While climbing the E145; I considered the crossing angle; ground speeds and climb performance of the aircraft and my experience with the climb rates of the A320 as well. The A320 notoriously climbs slowly; but in this case; the aircraft performed at a high rate. Vertical separation was lost before lateral separation was achieved.
Original NASA ASRS Text
Title: ZDC CTLR EXPERIENCED OPERROR AT FL360 AS CLB RATE WAS MISJUDGED BASED UPON ACR'S PAST PERFORMANCE.
Narrative: WHILE CLBING THE E145; I CONSIDERED THE XING ANGLE; GND SPDS AND CLB PERFORMANCE OF THE ACFT AND MY EXPERIENCE WITH THE CLB RATES OF THE A320 AS WELL. THE A320 NOTORIOUSLY CLBS SLOWLY; BUT IN THIS CASE; THE ACFT PERFORMED AT A HIGH RATE. VERT SEPARATION WAS LOST BEFORE LATERAL SEPARATION WAS ACHIEVED.
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.