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Medium large transport crew did not receive controller's clrncs because of controller overload and incomplete call sign use.
| Attributes | |
| ACN | 517440 |
| Time | |
| Date | 200107 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : san.airport |
| State Reference | CA |
| Altitude | msl single value : 5000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : sct.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Large Transport, Low Wing, 2 Turbojet Eng |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : atp |
| Experience | flight time last 90 days : 80 flight time total : 8500 flight time type : 1000 |
| ASRS Report | 517440 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | non adherence : far non adherence : published procedure other anomaly other |
| Independent Detector | other controllera |
| Resolutory Action | controller : issued new clearance controller : issued alert none taken : anomaly accepted |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance FAA ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Checked with final approach controller. He gave us an altitude of 5000 ft and heading of 090 degrees. We acknowledged. He was very busy with other aircraft. Radio never had a quiet moment. All of a sudden, he called us and told us to identify and turn left to heading 030 degrees. We acknowledged. He then asked us if we had heard him calling us for quite some time. We said no. He vectored us out to 21 mi final. On a 10 mi final he asked us again if we had heard him calling us. We said only when we checked in the first time. He then told us to contact san tower. He was very overloaded. I think (after thinking about this) he may have thought he had been giving us instructions, but did not use our call sign. It seemed to be a mess out there.
Original NASA ASRS Text
Title: MLG CREW DID NOT RECEIVE CTLR'S CLRNCS BECAUSE OF CTLR OVERLOAD AND INCOMPLETE CALL SIGN USE.
Narrative: CHKED WITH FINAL APCH CTLR. HE GAVE US AN ALT OF 5000 FT AND HDG OF 090 DEGS. WE ACKNOWLEDGED. HE WAS VERY BUSY WITH OTHER ACFT. RADIO NEVER HAD A QUIET MOMENT. ALL OF A SUDDEN, HE CALLED US AND TOLD US TO IDENT AND TURN L TO HDG 030 DEGS. WE ACKNOWLEDGED. HE THEN ASKED US IF WE HAD HEARD HIM CALLING US FOR QUITE SOME TIME. WE SAID NO. HE VECTORED US OUT TO 21 MI FINAL. ON A 10 MI FINAL HE ASKED US AGAIN IF WE HAD HEARD HIM CALLING US. WE SAID ONLY WHEN WE CHKED IN THE FIRST TIME. HE THEN TOLD US TO CONTACT SAN TWR. HE WAS VERY OVERLOADED. I THINK (AFTER THINKING ABOUT THIS) HE MAY HAVE THOUGHT HE HAD BEEN GIVING US INSTRUCTIONS, BUT DID NOT USE OUR CALL SIGN. IT SEEMED TO BE A MESS OUT THERE.
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.