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ZDC controller experienced operational error at FL200 during descent and WX deviation procedures for iad.
| Attributes | |
| ACN | 633688 |
| Time | |
| Date | 200410 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : zdc.artcc |
| State Reference | VA |
| Altitude | msl single value : 20000 |
| Environment | |
| Weather Elements | Thunderstorm |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 20 |
| ASRS Report | 633688 |
| 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 new clearance controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 21000 vertical : 0 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Air carrier Z was landing iad and was higher because of deviating traffic. I then expedited air carrier Z to 10000 ft. Then air carrier X checked on and I then descended him to 10000 ft. Loss of separation occurred between air carrier X and air carrier Y.
Original NASA ASRS Text
Title: ZDC CTLR EXPERIENCED OPERROR AT FL200 DURING DSCNT AND WX DEV PROCS FOR IAD.
Narrative: ACR Z WAS LNDG IAD AND WAS HIGHER BECAUSE OF DEVIATING TFC. I THEN EXPEDITED ACR Z TO 10000 FT. THEN ACR X CHKED ON AND I THEN DSNDED HIM TO 10000 FT. LOSS OF SEPARATION OCCURRED BTWN ACR X AND ACR Y.
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.