Order 7110.65P, Air Traffic Control, with changes

7110.65P 2/19/04b. Request the aircraft to change to a specificdiscrete or nondiscrete code, as appropriate, and thenobserve the target or code display change. If a codechange is required in accordance with Section 2,Beacon Systems, of this chapter, use the codesspecified therein.c. Request the aircraft to change transponder to“standby.” After you observe the target disappear forsufficient scans to assure that loss of target resultedfrom placing the transponder in “standby” position,request the aircraft to return transponder to normaloperation and then observe the reappearance of thetarget.PHRASEOLOGY−SQUAWK STANDBY,thenSQUAWK NORMAL.d. EN ROUTE. During narrowband operations,an aircraft may be considered identified when the fulldata block is automatically associated with thebeacon target symbol of an aircraft that is squawkinga discrete code assigned by the computer.PHRASEOLOGY−SQUAWK (4 digit discrete code), AND IF YOURALTITUDE REPORTING EQUIPMENT IS TURNEDOFF, SQUAWK ALTITUDE.NOTE−The AIM informs pilots to adjust Mode C transponders withaltitude reporting capability activated unless deactivationis requested by ATC. Squawk altitude is included to provideapplicable phraseology.REFERENCE−FAAO 7110.65, Use of Tower Radar Displays, Para 3−1−9.FAAO 7110.65, Position Information, Para 5−3−6.5−3−4. TERMINAL AUTOMATION SYSTEMSIDENTIFICATION METHODSTERMINALa. Consider an auto-acquired aircraft as identifiedwhen the data block is displayed and is visible to you,and one of the following conditions exist:1. The radar or beacon identification procedureshave been used to confirm the identity of the taggedtarget.2. The aircraft is being handed off using a NASautomated system and one of the following does notappear in the data block: “CST”, “NAT”, “NT”,“AMB”, “OLD”, “NB”, “TU”, “AM”, or “OL”.b. Use the data block to maintain target identityunless it is in a coast status or displaced from theappropriate target.c. A displaced data block shall be updated at alltimes.REFERENCE−FAAO 7110.65, Use of Tower Radar Displays, Para 3−1−9.5−3−5. QUESTIONABLE IDENTIFICATIONa. Use more than one method of identificationwhen proximity of targets, duplication of observedaction, or any other circumstances cause doubt as totarget identification.b. If identification is questionable for any reason,take immediate action to reidentify the aircraft orterminate radar service. Identify the aircraft asfollows:1. As described in para 5−3−2, Primary RadarIdentification Methods, or para 5−3−3, BeaconIdentification Methods.2. En route. Ensure that all primary targets aredisplayed when radar identification is lost or isquestionable.REFERENCE−FAAO 7110.65, Methods, Para 5−4−3.5−3−6. POSITION INFORMATIONInform an aircraft of its position whenever radaridentification is established by means of identifyingturns or by any of the beacon identification methodsoutlined in para 5−3−3, Beacon IdentificationMethods. Position information need not be givenwhen identification is established by positioncorrelation or when a departing aircraft is identifiedwithin 1 mile of the takeoff runway end.5−3−7. IDENTIFICATION STATUSa. Inform an aircraft of radar contact when:1. Initial radar identification in the ATC systemis established.2. Subsequent to loss of radar contact orterminating radar service, radar identification isreestablished.PHRASEOLOGY−RADAR CONTACT (position if required).5−3−2Radar Identification