Professional Pilot, March 2018

Answers to TC 3 18 questions 1 b The amendment note alerts pilots that an update to the chart procedure has been made The chart dates in the heading section indicate a change to any information If a procedural update has been made a procedural amendment reference date is located on the lower left border of approach charts which includes the amendment number and procedure amendment reference date The CHANGES note at the bottom left corner of the chart indicates what changes were made In this case the TDZE and minimums 2 a b c e SA in the approach title and procedural note 1 in the Briefing Strip specify the requirements of SA special aircrew and aircraft certification required Procedural note 2 indicates that ADF is required the missed approach course is based on an NDB Note 3 states GPS or Radar Required According to AC 120 29A Criteria for Approval of Category I and Category II Weather Minima for Approach all US Category I operating minimums below 1 2 statute mile RVR2400 are based on RVR 3 a Note 1 in the landing minimums section indicates that the SA CAT I minimums require specific OPSPEC MSPEC or LOA approval 4 a c Ballflag note 1 on the plan view indicates that a mandatory altitude of 8000 applies to TTORO Ballflag note 2 indicates a maximum airspeed of 210 KIAS at TTORO LASSY and WDLNS A mandatory altitude of 7000 ft MSL applies only to WDLNS according to ballflag note 3 5 a c According to the plan view a mandatory altitude of 8000 ft MSL applies at TTORO Then a minimum altitude of 7000 ft MSL applies to the course of 159 to BGBUK 123 to LASSY and 087 to DPLOY The profile view shows a descent from 7000 ft MSL to 5000 ft MSL from DPLOY to JELLI 6 a Note 1 in the landing minimums section says Requires specific OPSPEC MSPEC or LOA approval and use of HUD to DH FAA Order 840013D Procedures for the Evaluation and Approval of Facilities for Special Authorization Category I Operations and All Category II and III Operations states that for SA CAT I operations the HUD must be operated in the mode used for CAT II or CAT III operations 7 b c MATON is located at D56 IIAH and 58 nm from the runway threshold as shown in the profile view According to FAA Order 840013D the commissioned glidepath angle must be 30 º or require the approval of FAA Flight Standards Service and the TCH RDH or ARDH must not exceed 60 ft Procedural note 2 in the Briefing Strip indicates that the VGSI and ILS glidepath are not coincident According to FAA Order 826019E coincidental glidepath angles vertical descent angles are within 02 º with TCH values within 3 ft 8 b The landing minimums section does not provide optional minimums if the approach lighting system is out According to FAA Order 840013D required lighting for an SA CAT I is a SSALR MALSR or ALSF 1 ALSF 2 and HIRL A VGSI in this case a PAPI is not required 9 a b c Note 1 in the landing minimums section indicates that the use of a HUD to the DH is required The RA height is based on the distance from the landing threshold point LTP to the point that the decision altitude DA occurs At this distance the terrain elevation on the final approach course is subtracted from the DA to calculate the RA The radar altimeter RA minimum should be used to determine the altitude at which to perform the missed approach because the accuracy of the barometric altimeter is much less than that of the radar altimeter Using a barometric DA that can be off by as much as 75 ft based on the only preflight check required reduces safety margins 10 a c d A plan view inset shows the missed approach holding fix MKAYE as the intersection of the 038 radial from HUB and the 085 bearing from BVP and the 079 radial from IAH The missed approach instructions in the Briefing Strip and the missed approach icons indicate a climb to 3000 ft MSL while on the 085 bearing to and from BVP NDB According to the AIM 5 4 21 the alternate missed approach procedure becomes mandatory if it is implemented by NOTAM ATC may also issue the alternate missed approach when necessary such as when a primary missed approach navaid fails during the approach