AC 120-55C Air Carrier TCAS - Code7700

AC 120-55C 2/23/11Appendix 6altitudes, certain RAs being inhibited by aircraft performance constraints, the inability to complywith an RA due to aircraft performance limitations after an engine failure, and appropriateresponse to RAs in limiting performance conditions, such as during heavy weight takeoff orwhile en route at maximum altitude for a particular weight.d. ATC Communication and Coordination. Training should discuss communication andcoordination with ATC related to or following a TCAS event, when to contact ATC, andaccepted TCAS phraseology.e. TCAS Equipment Components Controls, Displays, Audio Alerts, andAnnunciations. Academic training should include a discussion of TCAS terminology,symbology, operation, and optional controls and display features, including any items particularto an air carrier’s implementation or unique to its system.f. Interfaces and Compatibility with Other Aircraft Systems. Training should discussthe role of the Mode S transponder with a correct, discreet address installed, radar altimeterinputs to TCAS, and weather radar/EFIS interfaces, including any items particular to an aircarrier’s implementation or unique to its system.g. AFM Information. AFM provisions should be addressed, including information onTCAS modes of operation; normal and atypical flightcrew operating procedures; and response toTAs, RAs, and any AFM limitations.h. MEL Operating Provisions.i. Pilot Response. Appropriate pilot response to TCAS RAs and TAs, ATC clearancecompliance, nuisance alerts, and other such issues.j. TCAS Event Reporting. The air carrier’s TCAS event reporting policies for flightcrews.k. Reporting TCAS Malfunctions. Flightcrew procedures for reporting TCASmalfunctions or irregularities, if not otherwise addressed by routine maintenance procedures ofthat operator.3. Classroom Training. An understanding of TCAS operation and the criteria used for issuingTAs and RAs may be assessed using the following objectives and criteria. This training shouldaddress the following topics:a. System Operation.(1) Objective. Demonstrate knowledge of how TCAS functions.(2) Criteria. The pilot must demonstrate an understanding of the following functions:(a) Surveillance:• TCAS interrogates other transponder-equipped aircraft within a nominal rangeof 14 NM.Page 2