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IAN approach KRNO

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For this example im select departure KRNO/ RNAVX 34L/trans. PIDIC/. RNAVX 34L approach procedure start from PIDIC as IAF, continue to JUKNU as IF and finished in KARME as FAF. In this article i focuse my intenttion on the Flight Managment Announciations, whitch are displeyd on the PFD during RNAVX approach whith IAN approach capability. For particular phase of IAN approach is importent to know that: IAF - Pidic, IF - JUKNU, FAF - KARME.1) In the FMC, App index page select KRNO/ RNAVX 34L/ trans PIDIC. 2) When the plane pass the fix ORUKE, press APP on the MCP (arm autopilot approach mode). In this time on the PFD (left upper corner) appear the "approach data block" in this format:RNAV 34LX/344 - this line show you the name of RNAV procedure (RNAV 34LX) and final app course 344RW 34L/27 - this line show you the runway 34L and distance to RW 34L - 27nmLNAV/VNAV - this line show you the deviation scale ID (LNAV/VNAV - becourse APP mode in this phase is only ARM. FMA (upper line on the PFD) show you -FMC SPD LNAV VNAV PTH)3) When the plane approach to IAF PIDIC - FMA (upper line on PFD) change roll mode from LNAV to FAC (final approach course). Pitch mode stay in VNAV PTH. In this phase of flight "approach data block" change:RNAV 34LX/344RW 34L/23FAC/VNAVCMD status change to CH single4) When the plane approach to FAF KARME - FMA (upper line on PFD) change pitch mode from VNAV PTH to G/S. Now FMA show FMC SPD FAC G/S. In this phase of flight "approach data block" change:RNAV 34LX/344RW34L/10FMC - FMC transmit IAN deviations to the autopilot and dispaly system.I open this topic for other sim pilots, to talk whith you about yours IFR experience whit boeing 737NGX. I would like appreciate PMDG developer team and say thanks, that you create this very advanced software B737NGX.Captain Ondrej

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For this example im select departure KRNO/ RNAVX 34L/trans. PIDIC/. RNAVX 34L approach procedure start from PIDIC as IAF, continue to JUKNU as IF and finished in KARME as FAF. In this article i focuse my intenttion on the Flight Managment Announciations, whitch are displeyd on the PFD during RNAVX approach whith IAN approach capability. For particular phase of IAN approach is importent to know that:IAF - Pidic, IF - JUKNU, FAF - KARME.1) In the FMC, App index page select KRNO/ RNAVX 34L/ trans PIDIC.2) When the plane pass the fix ORUKE, press APP on the MCP (arm autopilot approach mode). In this time on the PFD (left upper corner) appear the "approach data block" in this format:RNAV 34LX/344 - this line show you the name of RNAV procedure (RNAV 34LX) and final app course 344RW 34L/27 - this line show you the runway 34L and distance to RW 34L - 27nmLNAV/VNAV - this line show you the deviation scale ID (LNAV/VNAV - becourse APP mode in this phase is only ARM. FMA (upper line on the PFD) show you -FMC SPD LNAV VNAV PTH) 3) When the plane approach to IAF PIDIC - FMA (upper line on PFD) change roll mode from LNAV to FAC (final approach course). Pitch mode stay in VNAV PTH. In this phase of flight "approach data block" change:RNAV 34LX/344RW 34L/23FAC/VNAVCMD status change to CH single4) When the plane approach to FAF KARME - FMA (upper line on PFD) change pitch mode from VNAV PTH to G/S. Now FMA show FMC SPD FAC G/S. In this phase of flight "approach data block" change:RNAV 34LX/344RW34L/10FMC - FMC transmit IAN deviations to the autopilot and dispaly system.I open this topic for other sim pilots, to talk whith you about yours IFR experience whit boeing 737NGX. I would like appreciate PMDG developer team and say thanks, that you create this very advanced software B737NGX.Captain Ondrej

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Hi Ondrej,Thanks a lot to sharing this. I did not understand how to follow an IAN procedure.Question : happened to me sometimes during an ILS approach to have the G/P mode instead of G/S mode. After pressing the APP : were annouced VOR/LOC>>>GP. Unfortunately I do not remember the exact circumstances. The only thing I am certain it was that I had selected the good runway ILS approach. I hope it's clear ;-) Have you an idea about that ?Thank you againRegards,Richard Portier

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Hi guys.I hate to say that, but this is incorrect procedure for RNAV approach. I flew in real flight sim few days ago with our instructors and I showed them this procedure you poster. The answer was- This is not correct procedure for RNAV approach at all. It was not my conclusion, it was conclusion of instructors who train our pilot for 737 NG/ As soon as they send me email with correct procedure I will share it. Thanks.

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Hello pilots. Thanks for corrections. I made mistake in article about IAN approach, when I (incorrectly) wrote as pich mode G/S instead GP. On the attached pics you could show that FMA dispalyed FMC SPD FAC GP (instead G/S). Construction of G/S is based on ILS radio frequency from the ground navigation source, but construction of GP is based on VNAV PATH, which is calculated by FMC. For IAN approach is navigation source - FMC. Im wait for recommendations of your piloting instructor.Im in tunecaptain Ondrej

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