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B737-400 flight crew has TCASII RA to descend for avoidance of aircraft cleared through their altitude.
| Attributes | |
| ACN | 324730 |
| Time | |
| Date | 199601 |
| Day | Tue |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : tay |
| State Reference | FL |
| Altitude | msl bound lower : 26000 msl bound upper : 29000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zjx tower : cvg |
| Operator | common carrier : air carrier |
| Make Model Name | B737-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | climbout : intermediate altitude |
| Route In Use | enroute : direct |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent other |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 9900 flight time type : 4500 |
| ASRS Report | 324730 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 120 flight time total : 6500 flight time type : 4000 |
| ASRS Report | 324621 |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 10000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Flight tpa-phl. Deviating around WX, we were cleared direct to tay VOR at FL260. Received clearance to FL290. Climbing at 2000 FPM we received an RA and were directed to descend at 2600- 2700 FPM for collision avoidance. Informed controller of the RA and was later cleared to FL260 and given a 50 degree right turn (approximately). After a phone call to ZJX upon our arrival in phl, we were informed that the other aircraft involved had been cleared to descend through our altitude and we should have had 5 mi separation. Upon our descent, other aircraft was given climb clearance back to FL280. We were also informed separation was 2 mi at closest point (same altitude).
Original NASA ASRS Text
Title: B737-400 FLC HAS TCASII RA TO DSND FOR AVOIDANCE OF ACFT CLRED THROUGH THEIR ALT.
Narrative: FLT TPA-PHL. DEVIATING AROUND WX, WE WERE CLRED DIRECT TO TAY VOR AT FL260. RECEIVED CLRNC TO FL290. CLBING AT 2000 FPM WE RECEIVED AN RA AND WERE DIRECTED TO DSND AT 2600- 2700 FPM FOR COLLISION AVOIDANCE. INFORMED CTLR OF THE RA AND WAS LATER CLRED TO FL260 AND GIVEN A 50 DEG R TURN (APPROX). AFTER A PHONE CALL TO ZJX UPON OUR ARR IN PHL, WE WERE INFORMED THAT THE OTHER ACFT INVOLVED HAD BEEN CLRED TO DSND THROUGH OUR ALT AND WE SHOULD HAVE HAD 5 MI SEPARATION. UPON OUR DSCNT, OTHER ACFT WAS GIVEN CLB CLRNC BACK TO FL280. WE WERE ALSO INFORMED SEPARATION WAS 2 MI AT CLOSEST POINT (SAME ALT).
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.