 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
DC9 first officer increases rate of climb in response to a TCASII RA during climb to cruise altitude. ARTCC controller questioned reporter's clearance to the higher altitude.
| Attributes | |
| ACN | 541140 |
| Time | |
| Date | 200205 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : zob.artcc |
| State Reference | OH |
| Altitude | msl bound lower : 27500 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | departure sid : geneva2 |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zob.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 220 flight time total : 7500 flight time type : 2500 |
| ASRS Report | 541140 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar aircraft equipment : tcas other controllera other flight crewa other flight crewb |
| Resolutory Action | flight crew : took precautionary avoidance action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 8000 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Intra Facility Coordination Failure |
Narrative:
ZOB cleared us from FL230 to FL290. After receiving frequency change and climbing through FL275 the controller asked us to verify our altitude. After approximately 15 seconds we received an RA on TCASII. We increased our rate of climb from approximately 1200 FPM to approximately 2200 FPM. After clearing traffic the controller asked us if we were cleared to FL290 by previous controller. We responded yes. He then said that they were investigating the situation. We think this was the lack of communication between the 2 controllers. Because the captain and I both verified the newly assigned altitude of FL290 and set it in altitude warning indictor.
Original NASA ASRS Text
Title: DC9 FO INCREASES RATE OF CLB IN RESPONSE TO A TCASII RA DURING CLB TO CRUISE ALT. ARTCC CTLR QUESTIONED RPTR'S CLRNC TO THE HIGHER ALT.
Narrative: ZOB CLRED US FROM FL230 TO FL290. AFTER RECEIVING FREQ CHANGE AND CLBING THROUGH FL275 THE CTLR ASKED US TO VERIFY OUR ALT. AFTER APPROX 15 SECONDS WE RECEIVED AN RA ON TCASII. WE INCREASED OUR RATE OF CLB FROM APPROX 1200 FPM TO APPROX 2200 FPM. AFTER CLRING TFC THE CTLR ASKED US IF WE WERE CLRED TO FL290 BY PREVIOUS CTLR. WE RESPONDED YES. HE THEN SAID THAT THEY WERE INVESTIGATING THE SIT. WE THINK THIS WAS THE LACK OF COM BTWN THE 2 CTLRS. BECAUSE THE CAPT AND I BOTH VERIFIED THE NEWLY ASSIGNED ALT OF FL290 AND SET IT IN ALT WARNING INDICTOR.
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.