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An arriving B767 flight crew was issued a turn and a climb to 5000 ft from the final approach course due to spacing behind another aircraft. The flight crew continue inbound on final and climbed above the assigned altitude. A conflict resulted with an IFR C550 level at 6000 ft.
| Attributes | |
| ACN | 689180 |
| Time | |
| Date | 200603 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | navaid : las.vortac |
| State Reference | NV |
| Altitude | msl single value : 5200 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : l30.tracon tower : ewr.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer only : n/s |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : l30.tracon |
| Make Model Name | Citation V |
| Operating Under FAR Part | Part 91 |
| Flight Phase | descent : approach |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : approach |
| Qualification | controller : radar controller : military |
| Experience | controller military : 13 controller radar : 20 |
| ASRS Report | 689180 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance other anomaly other spatial deviation |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
I advised air carrier X that the traffic he was following was 30 KTS slower and then asked him if he had the traffic in sight. Air carrier X stated he did have traffic in sight but the spacing would not be acceptable due to the speed of the preceding aircraft. I then broke air carrier X out to the south for re-sequence and issued instructions to tl heading 100 degrees maintain 5000 ft. Air carrier X acknowledged the clearance. I had traffic above him going north (C550) descending to 6000 ft. I issued the instructions to air carrier X again which he acknowledged but still continued down the final and leveled about 5200 ft or 5400 ft. I asked him if he was having difficulty. I also issued a speed of 180 KTS then observed him increase speed to about 250 KTS. When I questioned his speed; he said he was slowing. This crew seemed unsure and may have caused a situation because of their inability to follow instructions even after acknowledging the instructions.
Original NASA ASRS Text
Title: AN ARRIVING B767 FLT CREW WAS ISSUED A TURN AND A CLB TO 5000 FT FROM THE FINAL APCH COURSE DUE TO SPACING BEHIND ANOTHER ACFT. THE FLT CREW CONTINUE INBOUND ON FINAL AND CLBED ABOVE THE ASSIGNED ALT. A CONFLICT RESULTED WITH AN IFR C550 LEVEL AT 6000 FT.
Narrative: I ADVISED ACR X THAT THE TFC HE WAS FOLLOWING WAS 30 KTS SLOWER AND THEN ASKED HIM IF HE HAD THE TFC IN SIGHT. ACR X STATED HE DID HAVE TFC IN SIGHT BUT THE SPACING WOULD NOT BE ACCEPTABLE DUE TO THE SPD OF THE PRECEDING ACFT. I THEN BROKE ACR X OUT TO THE S FOR RE-SEQUENCE AND ISSUED INSTRUCTIONS TO TL HDG 100 DEGS MAINTAIN 5000 FT. ACR X ACKNOWLEDGED THE CLRNC. I HAD TFC ABOVE HIM GOING N (C550) DSNDING TO 6000 FT. I ISSUED THE INSTRUCTIONS TO ACR X AGAIN WHICH HE ACKNOWLEDGED BUT STILL CONTINUED DOWN THE FINAL AND LEVELED ABOUT 5200 FT OR 5400 FT. I ASKED HIM IF HE WAS HAVING DIFFICULTY. I ALSO ISSUED A SPD OF 180 KTS THEN OBSERVED HIM INCREASE SPD TO ABOUT 250 KTS. WHEN I QUESTIONED HIS SPD; HE SAID HE WAS SLOWING. THIS CREW SEEMED UNSURE AND MAY HAVE CAUSED A SITUATION BECAUSE OF THEIR INABILITY TO FOLLOW INSTRUCTIONS EVEN AFTER ACKNOWLEDGING THE INSTRUCTIONS.
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.