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MD88 flight crew experienced TCAS RA at approximately FL270 during ZDC initiated climb; TCAS response saved required separation.
| Attributes | |
| ACN | 691264 |
| Time | |
| Date | 200603 |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : mol.vor |
| State Reference | VA |
| Altitude | msl bound lower : 27000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zdc.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : zdc.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | cruise : level |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : commercial pilot : atp pilot : flight engineer pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 190 flight time total : 10076 flight time type : 530 |
| ASRS Report | 691264 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | conflict : airborne critical |
| Independent Detector | aircraft equipment : tcas other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Miss Distance | vertical : 1000 |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
Narrative:
We were flying from pauki intersection to mol VOR at FL270. The controller told us to climb to FL280 so we started an approximately 700 FPM climb. Passing FL275 we noticed an aircraft at our 1 O'clock position on TCAS at FL270 at approximately 8 mi. We increased our climb rate and at the same time the controller told us to expedite our climb and report reaching FL280. At approximately FL277 we received a TCAS RA to climb. We had acquired the traffic visually by this time and passed behind and 1000 ft above it when we leveled at FL280. Cause: the controller possibly gave us the climb later than she wanted (final cruise altitude was FL340).
Original NASA ASRS Text
Title: MD88 FLT CREW EXPERIENCED TCAS RA AT APPROX FL270 DURING ZDC INITIATED CLB; TCAS RESPONSE SAVED REQUIRED SEPARATION.
Narrative: WE WERE FLYING FROM PAUKI INTXN TO MOL VOR AT FL270. THE CTLR TOLD US TO CLB TO FL280 SO WE STARTED AN APPROX 700 FPM CLB. PASSING FL275 WE NOTICED AN ACFT AT OUR 1 O'CLOCK POS ON TCAS AT FL270 AT APPROX 8 MI. WE INCREASED OUR CLB RATE AND AT THE SAME TIME THE CTLR TOLD US TO EXPEDITE OUR CLB AND RPT REACHING FL280. AT APPROX FL277 WE RECEIVED A TCAS RA TO CLB. WE HAD ACQUIRED THE TFC VISUALLY BY THIS TIME AND PASSED BEHIND AND 1000 FT ABOVE IT WHEN WE LEVELED AT FL280. CAUSE: THE CTLR POSSIBLY GAVE US THE CLB LATER THAN SHE WANTED (FINAL CRUISE ALT WAS FL340).
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.