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Departure controller stopped medium large transport climb during a SID departure for other traffic and advised that tower controller should not have cleared them to a higher altitude.
| Attributes | |
| ACN | 429742 |
| Time | |
| Date | 199902 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : oak |
| State Reference | CA |
| Altitude | msl bound lower : 10000 msl bound upper : 15000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Navigation In Use | Other |
| Route In Use | departure other departure sid : sid enroute airway : oak |
| Flight Plan | IFR |
| Aircraft 2 | |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : flight engineer pilot : cfi |
| Experience | flight time last 90 days : 120 flight time total : 15000 flight time type : 2000 |
| ASRS Report | 429742 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Miss Distance | horizontal : 6000 vertical : 1500 |
| Supplementary | |
| Air Traffic Incident | Inter Facility Coordination Failure |
Narrative:
On early morning departure from oak, original clearance was heading 270 degrees for vectors to coast 4 departure, maintain 15000 ft. Climbing out of 8000 ft (talking to bay departure), he called traffic at 12 O'clock, 11000 ft, 'expect higher when passing.' we saw the traffic visually and on TCASII. I told the first officer to slow rate of climb and told controller we were cleared to 15000 ft. About this time, we were approaching 10000 ft and passing under the traffic. A TCASII traffic alert went off. Bay said, 'you are now clear of traffic, climb and maintain 15000 ft.' a few mins later I questioned the controller and he said oak tower should have cleared us to 10000 ft. The normal clearance during the day is 10000 ft. During off hours, late night and early morning, they clear aircraft to 15000 ft. The event occurred due to lack of coordination between oak tower and bay departure. This error could have been caught earlier by bay departure on my initial call when I stated we were climbing to 15000 ft. This was a hearback problem. I suggest bay departure and oak tower develop procedures to prevent this in the future.
Original NASA ASRS Text
Title: DEP CTLR STOPPED MLG CLB DURING A SID DEP FOR OTHER TFC AND ADVISED THAT TWR CTLR SHOULD NOT HAVE CLRED THEM TO A HIGHER ALT.
Narrative: ON EARLY MORNING DEP FROM OAK, ORIGINAL CLRNC WAS HDG 270 DEGS FOR VECTORS TO COAST 4 DEP, MAINTAIN 15000 FT. CLBING OUT OF 8000 FT (TALKING TO BAY DEP), HE CALLED TFC AT 12 O'CLOCK, 11000 FT, 'EXPECT HIGHER WHEN PASSING.' WE SAW THE TFC VISUALLY AND ON TCASII. I TOLD THE FO TO SLOW RATE OF CLB AND TOLD CTLR WE WERE CLRED TO 15000 FT. ABOUT THIS TIME, WE WERE APCHING 10000 FT AND PASSING UNDER THE TFC. A TCASII TFC ALERT WENT OFF. BAY SAID, 'YOU ARE NOW CLR OF TFC, CLB AND MAINTAIN 15000 FT.' A FEW MINS LATER I QUESTIONED THE CTLR AND HE SAID OAK TWR SHOULD HAVE CLRED US TO 10000 FT. THE NORMAL CLRNC DURING THE DAY IS 10000 FT. DURING OFF HRS, LATE NIGHT AND EARLY MORNING, THEY CLR ACFT TO 15000 FT. THE EVENT OCCURRED DUE TO LACK OF COORD BTWN OAK TWR AND BAY DEP. THIS ERROR COULD HAVE BEEN CAUGHT EARLIER BY BAY DEP ON MY INITIAL CALL WHEN I STATED WE WERE CLBING TO 15000 FT. THIS WAS A HEARBACK PROB. I SUGGEST BAY DEP AND OAK TWR DEVELOP PROCS TO PREVENT THIS IN THE FUTURE.
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.