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A B757 pilot described a TCAS RA event while at FL300 in cruise; unknown traffic passed approximately 300 ft beneath the reporter.
| Attributes | |
| ACN | 858242 |
| Time | |
| Date | 200910 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Events | |
| Anomaly | Conflict NMAC Deviation - Procedural Clearance |
Narrative:
This was day 2 of my IOE on the B757. At cruise at FL300 IMC the check airman was taking a bathroom break before we started our descent. I received a yellow traffic advisory at my one o'clock position low showing six hundred feet below us; seconds later followed a red resolution advisory. I immediately turned off the autopilot and followed the GPWS commands of 'climb; climb' then 'monitor vertical speed'. I climbed to 30;400 ft until I got the clear of conflict; then I descended back to FL300. I advised center I was responding to an RA. I could hear the traffic below me also telling center the he was doing the same. Center acknowledged and asked if I was descending back down to FL300; I responded as roger; then things got real quiet for a few seconds. I estimated we came within 250 to 300 ft of each other.
Original NASA ASRS Text
Title: A B757 pilot described a TCAS RA event while at FL300 in cruise; unknown traffic passed approximately 300 FT beneath the reporter.
Narrative: This was day 2 of my IOE on the B757. At cruise at FL300 IMC the Check Airman was taking a bathroom break before we started our descent. I received a Yellow traffic advisory at my one o'clock position low showing six hundred feet below us; seconds later followed a red resolution advisory. I immediately turned off the autopilot and followed the GPWS commands of 'CLIMB; CLIMB' then 'MONITOR VERTICAL SPEED'. I climbed to 30;400 FT until I got the clear of conflict; then I descended back to FL300. I advised Center I was responding to an RA. I could hear the traffic below me also telling Center the he was doing the same. Center acknowledged and asked if I was descending back down to FL300; I responded as Roger; then things got real quiet for a few seconds. I estimated we came within 250 to 300 FT of each other.
Data retrieved from NASA's ASRS site as of April 2012 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.