Narrative:

Cleared from 4000 to 9000 ft, climbing in speed on pitch mode. At about 6500 ft MSL, received traffic TCASII alert at 10 O'clock position, 2-3 mi, 800 ft, descending. We were climbing about 3500 FPM. About 2 seconds later, received TCASII RA with a command to 'adjust sink rate' to between 500-1000 FPM rate of climb. Autoflt disconnected and forward push initiated. Immediately thereafter, received 'descend' command to greater than 1500 FPM descent rate. I initiated a very aggressive push-over as I thought collision would otherwise be imminent. This resulted in a subsequent hard pull-up due to concern about terrain clearance over mountains. Digital flight data recorder readout: -0.4G, +1.8G. At time of incident, we were on an assignment heading of 100 degrees to intercept sli 080 degree radial. Note: fortunately, all cargo was properly restrained or I might not be alive to write this report.

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Original NASA ASRS Text

Title: WDB CARGO HVY JET INITIATES EVASIVE MANEUVERS DUE TO TCASII ALERT WITH DSND, THEN CLB.

Narrative: CLRED FROM 4000 TO 9000 FT, CLBING IN SPD ON PITCH MODE. AT ABOUT 6500 FT MSL, RECEIVED TFC TCASII ALERT AT 10 O'CLOCK POS, 2-3 MI, 800 FT, DSNDING. WE WERE CLBING ABOUT 3500 FPM. ABOUT 2 SECONDS LATER, RECEIVED TCASII RA WITH A COMMAND TO 'ADJUST SINK RATE' TO BTWN 500-1000 FPM RATE OF CLB. AUTOFLT DISCONNECTED AND FORWARD PUSH INITIATED. IMMEDIATELY THEREAFTER, RECEIVED 'DSND' COMMAND TO GREATER THAN 1500 FPM DSCNT RATE. I INITIATED A VERY AGGRESSIVE PUSH-OVER AS I THOUGHT COLLISION WOULD OTHERWISE BE IMMINENT. THIS RESULTED IN A SUBSEQUENT HARD PULL-UP DUE TO CONCERN ABOUT TERRAIN CLRNC OVER MOUNTAINS. DIGITAL FLT DATA RECORDER READOUT: -0.4G, +1.8G. AT TIME OF INCIDENT, WE WERE ON AN ASSIGNMENT HDG OF 100 DEGS TO INTERCEPT SLI 080 DEG RADIAL. NOTE: FORTUNATELY, ALL CARGO WAS PROPERLY RESTRAINED OR I MIGHT NOT BE ALIVE TO WRITE THIS RPT.

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.