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I90 controller reports of issuing a climb via clearance; the pilot reads it back correctly; but the aircraft misses a crossing restriction which leads to a loss of separation.
| Attributes | |
| ACN | 1242649 |
| Time | |
| Date | 201503 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | I90.TRACON |
| State Reference | TX |
| Aircraft 1 | |
| Make Model Name | Large Transport |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Route In Use | SID FLYZA1 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Light Transport Low Wing 2 Turbojet Eng |
| Flight Phase | Final Approach |
| Route In Use | STAR HCKRY1 |
| Flight Plan | IFR |
| Person 1 | |
| Function | Departure Instructor |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 1.5 |
| Events | |
| Anomaly | Conflict Airborne Conflict Deviation - Altitude Crossing Restriction Not Met Deviation - Procedural Published Material / Policy Deviation - Procedural Clearance |
Narrative:
I was training a cpc-it (in-training) on south departure and we were discussing when to use the climb via and when it would be best not to. There were arrivals into iah that made it a good opportunity to use the climb via clearance with aircraft X. Aircraft X checked in climbing via the FLYZA1 departure. The cpc-it issued aircraft X climb via the FLYZA1 departure except maintain 16;000. The pilot read it back correctly. I told the cpc-it that even though we issue the climb via clearance we still need to make sure they comply with the altitudes. I saw aircraft X climbing out of 3;400 at a normal rate. Then a supervisor was walking behind me and asked for a PIREP and I turned my head and gave him the PIREP from the previous aircraft. I turned my head back to the scope and saw aircraft X climbing through 6;800 right in front of aircraft Y who was on the HCKRY1 arrival turning the downwind at 6;000. I keyed up the microphone and told aircraft X the top altitude was 5;000 at botll intersection and a possible pilot deviation. Aircraft X did climb a lot faster than all the previous departures; they climbed 4;000 in 3 nm.somehow change the phraseology so that pilots understand to comply with the altitude restrictions on the departures.
Original NASA ASRS Text
Title: I90 controller reports of issuing a climb via clearance; the pilot reads it back correctly; but the aircraft misses a crossing restriction which leads to a loss of separation.
Narrative: I was training a CPC-IT (In-Training) on South Departure and we were discussing when to use the climb via and when it would be best not to. There were arrivals into IAH that made it a good opportunity to use the climb via clearance with Aircraft X. Aircraft X checked in climbing via the FLYZA1 departure. The CPC-IT issued Aircraft X Climb via the FLYZA1 Departure except maintain 16;000. The pilot read it back correctly. I told the CPC-IT that even though we issue the climb via clearance we still need to make sure they comply with the altitudes. I saw Aircraft X climbing out of 3;400 at a normal rate. Then a supervisor was walking behind me and asked for a PIREP and I turned my head and gave him the PIREP from the previous aircraft. I turned my head back to the scope and saw Aircraft X climbing through 6;800 right in front of Aircraft Y who was on the HCKRY1 arrival turning the downwind at 6;000. I keyed up the microphone and told Aircraft X the top altitude was 5;000 at BOTLL intersection and a possible pilot deviation. Aircraft X did climb a lot faster than all the previous departures; they climbed 4;000 in 3 nm.Somehow change the phraseology so that pilots understand to comply with the altitude restrictions on the departures.
Data retrieved from NASA's ASRS site 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.