Order 7110.65P, Air Traffic Control, with changes

7110.65P 2/19/04b. If an alternative missed approach procedure isnot available and weather conditions are less thanrequired by para 6−7−1, Application, subpara c, clearthe succeeding aircraft for an approach when thepreceding aircraft has landed or canceled its IFRflight plan.FIG 6−7−2Timed Approach Procedures Using a Bearing on anNDB and Longitudinal and Vertical SeparationNOTE−FIG 6−7−2 depicts the application of timed approachprocedures using a holding/approach fix on a bearing of anNDB and applying a combination of longitudinal andvertical separation. The #3 aircraft has been instructed todescend to 2,000 after the #2 aircraft has reporteddeparting the holding/approach fix inbound and leaving2,000 at point A. The #2 aircraft has departed theholding/approach fix inbound at the designated time,maintaining 2,000 until cleared for approach at point A.The #1 aircraft has been sighted, enabling the controller toissue approach clearance to the #2 aircraft at point A.c. Release the aircraft to the tower before it reachesthe final approach fix.6−7−3. SEQUENCE INTERRUPTIONInterrupt the established timed approach sequence ifnecessary to allow an aircraft to execute a differenttype of approach.6−7−4. LEVEL FLIGHT RESTRICTIONIf the weather report indicates an aircraft will be inIFR conditions over the final approach fix(nonprecision approach) or the outer marker or the fixused in lieu of the outer marker (precision approach)when para 6−7−2, Approach Sequence, subpara b isapplied, clear the second aircraft for an approachearly enough to allow at least 1 minute of level flightbefore crossing the final approach fix/outer marker orthe fix used in lieu of the outer marker.6−7−5. INTERVAL MINIMAUse a 2−minute or a 5−mile radar interval (except fora small aircraft behind a heavy aircraft: use a3−minute or a 6−mile radar interval) as the minimumbetween successive approaches and increase theinterval, as necessary, taking into account the:NOTE−Increased separation is required for small aircraft behindheavy aircraft because of the possible effects of waketurbulence.REFERENCE−FAAO 7110.65, Approach Separation Responsibility, Para 5−9−5.FAAO 7110.65, Application, Para 6−7−1.FAAO 7110.65, Approach Sequence, Para 6−7−2.a. Relative speeds of the aircraft concerned.b. Existing weather conditions.c. Distance between the approach fix and theairport.d. Type of approach being made.6−7−6. TIME CHECKIssue a time check to an aircraft before specifying atime to leave the approach fix inbound unless theaircraft is vectored to the final approach course.6−7−7. MISSED APPROACHESa. If weather conditions are such that an aircraftwill likely miss an approach, issue an alternativemissed approach procedure to the next aircraft.b. If an aircraft misses an approach, allow the nextaircraft to continue the approach if it has beenassigned an alternative missed approach procedure.Retain radar control or hold any remaining aircraft atassigned altitudes until traffic conditions permit theissuance of approach clearances.c. When para 6−7−2, Approach Sequence, subparab is applied and the first aircraft misses anapproach, retain radar control or clear the secondaircraft to maintain the last assigned altitude(minimum holding altitude) and return to theholding/approach fix to hold until traffic conditionspermit the issuance of approach clearances.6−7−2Timed Approaches