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Flight Training Instruction - Cnatra - U.S. Navy

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T-6B PRIMARY INSTRUMENT NAVIGATION CHAPTER NINE<br />

Common Errors.<br />

1. Not following instructions given by the controller.<br />

2. Late to configure and getting behind the aircraft.<br />

907. AIRPORT SURVEILLANCE APPROACH (ASR)<br />

Description: A surveillance approach is a non–precision approach in which the controller<br />

provides navigational guidance in azimuth only. Airport surveillance radar is less precise than<br />

precision radar. This accounts for the higher minimums on ASR approaches. It is a good<br />

practice to “back up” any Radar approach with a published non-precision approach, if possible.<br />

Procedure:<br />

1. Execute the same steps 2-6 as in the PAR.<br />

2. Begin descent when directed to “descend to your minimum descent altitude.”<br />

Reduce power to 15%, allow the nose to fall, trim to maintain 120 KIAS (recommended altitude<br />

advisories will be given if requested).<br />

3. 100’ prior to MDA, initiate level-off by adding power to 35% and raising the nose.<br />

4. Level-off at MDA.<br />

5. The controller will tell you when you are at the MAP. If the runway is not in sight or you<br />

are not in a position to make a safe landing, execute the Missed Approach instructions.<br />

Common Errors.<br />

1. Not flying the headings assigned by the controller.<br />

2. Late to configure and getting behind the aircraft.<br />

908. NO-GYRO APPROACH<br />

Description. The No-Gyro approach is used when experiencing heading indicator malfunctions.<br />

In this case, the word “gyro” refers to your directional gyro, which provides heading input to the<br />

PFD. It is conceivable that during flight your heading indication could fail, while all other<br />

systems essential to flight remain normal. Under such conditions, ATC can provide a No-Gyro<br />

approach.<br />

The radar controller, seeing your track on radar, can apply a procedure very similar to timed<br />

turns. In this case, the controller tells you when to start and stop your turns. These No-Gyro<br />

vectors can be used to vector you to VFR conditions for a visual landing or vector you through a<br />

Ground Controlled Approach (GCA). The same glideslope and DA/MDA that apply to the<br />

FINAL APPROACH PROCEDURES 9-15

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