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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Pct controller; providing OJT; experienced operational error at approximately 11400 ft with 2 climbing aircraft.
| Attributes | |
| ACN | 663380 |
| Time | |
| Date | 200507 |
| Place | |
| Locale Reference | airport : dca.airport |
| State Reference | DC |
| Altitude | agl single value : 11400 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : pct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : pct.tracon |
| Operator | general aviation : personal |
| Make Model Name | IAI1124/1124A/Westwind |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure instruction : instructor |
| Qualification | controller : radar |
| Experience | controller radar : 12 |
| ASRS Report | 663380 |
| Person 2 | |
| Function | controller : radar instruction : trainee |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued alert |
| Consequence | faa : investigated |
| Miss Distance | horizontal : 3000 vertical : 600 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Climbed an aircraft into another aircraft without ensuring vertical separation. The contributing factor was having the aircraft on top increase speed. Then having the lower aircraft not exceed 250 KTS. This decreased the climb rate of one and increased the climb rate of the other. Standard separation was lost.
Original NASA ASRS Text
Title: PCT CTLR; PROVIDING OJT; EXPERIENCED OPERROR AT APPROX 11400 FT WITH 2 CLBING ACFT.
Narrative: CLBED AN ACFT INTO ANOTHER ACFT WITHOUT ENSURING VERT SEPARATION. THE CONTRIBUTING FACTOR WAS HAVING THE ACFT ON TOP INCREASE SPD. THEN HAVING THE LOWER ACFT NOT EXCEED 250 KTS. THIS DECREASED THE CLB RATE OF ONE AND INCREASED THE CLB RATE OF THE OTHER. STANDARD SEPARATION WAS LOST.
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.