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ZBW controller experienced near loss of separation at FL180 when intrafac coordination failed and flight crew failed to coordination/make crossing restriction.
| Attributes | |
| ACN | 754027 |
| Time | |
| Date | 200709 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : alb.airport |
| State Reference | NY |
| Altitude | msl single value : 18000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zbw.artcc tower : zzz.tower |
| Operator | common carrier : air carrier |
| Make Model Name | EMB ERJ 135 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival star : swede |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zbw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet 200 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : radar |
| Qualification | controller : radar |
| Experience | controller radar : 18 controller time certified in position1 : 18 controller time certified in position2 : 5 |
| ASRS Report | 754027 |
| Events | |
| Anomaly | altitude deviation : crossing restriction not met conflict : airborne less severe non adherence : clearance non adherence : published procedure |
| Independent Detector | atc equipment : conflict alert other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert flight crew : took evasive action |
| Miss Distance | horizontal : 30000 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure |
Narrative:
I took the handoff on air carrier X; at FL180; established on swede 1 arrival. Adjacent controller subsequently flashed handoff to me on air carrier Y out of FL220 for 16000 ft and called to coordinate a crossing restr of 10 mi south of alb at 16000 ft; and a turn for air carrier X to stela intersection to rejoin swede 1 arrival. These 2 aircraft come from the same controller; so I concur air carrier Z is frequency changed to me; just as the conflict alert activates. I turn air carrier Z to a 180 degree heading (30 degree radial) which I enter in the 4TH line of the data block; so previous controller knows what action I am taking. Air carrier Y is now 10 mi south of alb at FL180 descending to 16000 ft. I call the previous controller; who explains air carrier Y told him late that he would miss his restr; he turned him immediately to a 270 degree heading (60 degree radial); and because the oedp didn't go off; he was not going to pursue a pilot deviation. This is wrong on so many levels. 1) pilot deviation; 2) immediate turn (to save an oe instead of a midair); 3) absolving pilot on frequency (perpetuating the problem).
Original NASA ASRS Text
Title: ZBW CTLR EXPERIENCED NEAR LOSS OF SEPARATION AT FL180 WHEN INTRAFAC COORD FAILED AND FLT CREW FAILED TO COORD/MAKE CROSSING RESTRICTION.
Narrative: I TOOK THE HDOF ON ACR X; AT FL180; ESTABLISHED ON SWEDE 1 ARR. ADJACENT CTLR SUBSEQUENTLY FLASHED HDOF TO ME ON ACR Y OUT OF FL220 FOR 16000 FT AND CALLED TO COORDINATE A XING RESTR OF 10 MI S OF ALB AT 16000 FT; AND A TURN FOR ACR X TO STELA INTXN TO REJOIN SWEDE 1 ARR. THESE 2 ACFT COME FROM THE SAME CTLR; SO I CONCUR ACR Z IS FREQ CHANGED TO ME; JUST AS THE CONFLICT ALERT ACTIVATES. I TURN ACR Z TO A 180 DEG HDG (30 DEG RADIAL) WHICH I ENTER IN THE 4TH LINE OF THE DATA BLOCK; SO PREVIOUS CTLR KNOWS WHAT ACTION I AM TAKING. ACR Y IS NOW 10 MI S OF ALB AT FL180 DSNDING TO 16000 FT. I CALL THE PREVIOUS CTLR; WHO EXPLAINS ACR Y TOLD HIM LATE THAT HE WOULD MISS HIS RESTR; HE TURNED HIM IMMEDIATELY TO A 270 DEG HDG (60 DEG RADIAL); AND BECAUSE THE OEDP DIDN'T GO OFF; HE WAS NOT GOING TO PURSUE A PLTDEV. THIS IS WRONG ON SO MANY LEVELS. 1) PLTDEV; 2) IMMEDIATE TURN (TO SAVE AN OE INSTEAD OF A MIDAIR); 3) ABSOLVING PLT ON FREQ (PERPETUATING THE PROB).
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.