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A CL60 experienced multiple TCAS ras with VFR traffic while inbound to trm on a brilliant VMC day.
| Attributes | |
| ACN | 981754 |
| Time | |
| Date | 201111 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | TRM.Airport |
| State Reference | CA |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Descent |
| Route In Use | Visual Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 50 Flight Crew Total 14000 Flight Crew Type 4000 |
| Events | |
| Anomaly | ATC Issue All Types Conflict Airborne Conflict |
| Miss Distance | Horizontal 4000 Vertical 100 |
Narrative:
We were forced to take evasive action three times during a visual approach to runway 17 at trm; due [to TCAS] ras. Approach seemed particularly anxious to have us cancel IFR during descent. Ultimately; we did cancel about 8;000 MSL. ATC did advise us of VFR bonanza traffic at 10;500 ft which we attempted to avoid by leveling off at 11;000 but which triggered our first RA; which resulted in our first evasive action. This was followed by two more evasive actions at approximately 6;500 and 4;000 respectively. It should be noted that the weather was perfect with unlimited visibility. Upon arrival we had a discussion with FBO manager about our experience. She informed us that this is the busiest day of the year for them. While fueling we noticed traffic departing and arriving on 17 and 35 without incident. In my opinion; the exceptional weather was a factor. We would not have experienced any of this in IMC conditions. As far as the airport goes; the unicom is listening only; no airport advisories. We did successfully communicate our intentions with two aircraft during arrival; and at least two during departure. My recommendation is to have a controller from the psp tower man the unicom at trm for holiday weekends during season.
Original NASA ASRS Text
Title: A CL60 experienced multiple TCAS RAs with VFR traffic while inbound to TRM on a brilliant VMC day.
Narrative: We were forced to take evasive action three times during a visual approach to Runway 17 at TRM; due [to TCAS] RAs. Approach seemed particularly anxious to have us cancel IFR during descent. Ultimately; we did cancel about 8;000 MSL. ATC did advise us of VFR Bonanza traffic at 10;500 FT which we attempted to avoid by leveling off at 11;000 but which triggered our first RA; which resulted in our first evasive action. This was followed by two more evasive actions at approximately 6;500 and 4;000 respectively. It should be noted that the weather was perfect with unlimited visibility. Upon arrival we had a discussion with FBO manager about our experience. She informed us that this is the busiest day of the year for them. While fueling we noticed traffic departing and arriving on 17 and 35 without incident. In my opinion; the exceptional weather was a factor. We would not have experienced any of this in IMC conditions. As far as the airport goes; the UNICOM is listening only; no airport advisories. We did successfully communicate our intentions with two aircraft during arrival; and at least two during departure. My recommendation is to have a Controller from the PSP Tower man the UNICOM at TRM for holiday weekends during season.
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.