![\"\"](\"http:\/\/caucanimax.com\/blog\/wordpress\/wp-content\/uploads\/2026\/06\/Is-the-FD-required-for-an-RNAV-GNSS-approach-with-LNAV-minima-using-NAV-FPA-guidance_image_3.png\")
<\/a><\/p>\n\u90a3\u4e48\u4e3a\u4ec0\u4e48 LNAV minima \u7684 RNAV(GNSS) \u8fdb\u8fd1\uff0c\u8fd9\u4e24\u79cd\u4e0d\u540c\u7684\u5f15\u5bfc\u6a21\u5f0f\uff0c\u5bf9 FD \u7684\u9700\u6c42\u4e0d\u4e00\u6837\u5462\uff1f<\/p>\n
\u6765\u6765\u56de\u56de\u95ee\u4e864\u6b21\uff0c\u7a7a\u5ba2\u7684\u56de\u590d\u6bd4\u8f83\u6df7\u4e71\uff0c\u751a\u81f3\u6709\u70b9\u626f\u95f2\u7bc7\u3002\u603b\u4e4b\uff0c\u6700\u540e\u7ec8\u4e8e\u5728\u201c\u91cd\u65b0\u8003\u8651\u201d\u4e4b\u540e\uff0c\u8ba4\u4e3a\u90fd\u5e94\u8be5\u7edf\u4e00\u5230 PRO-SPO PBN RNP APCH \u90e8\u5206\u7684\u8bbe\u5907\u8981\u6c42\u3002\u4e5f\u5c31\u662f\u9700\u8981 FD\u3002<\/p>\n
\u624b\u518c\u5728\u540e\u7eed\u53ef\u80fd\u4f1a\u4fee\u6539\uff0c\u4f5c\u4e3a\u4fdd\u5b88\u65b9\u6848\uff0c\u7a7a\u5ba2\u8ba4\u4e3a\u516c\u53f8\u53ef\u4ee5\u5148\u6309\u7167 PRO-SPO PBN RNP APCH \u90e8\u5206\u7684\u8bbe\u5907\u8981\u6c42\u6765\u6267\u884c\u3002<\/p>\n
\nTR-81510379 \u539f\u6587<\/strong><\/p>\nQ1<\/strong><\/p>\nRefer to FCOM PRO-NOR-SOP-180-C C APPROACH USING FPA GUIDANCE – AIRCRAFT EQUIPMENT, \u201cFor RNAV(GNSS) approaches, one FMS must be operative in NAV PRIMARY\u201d, without mention of FD.<\/p>\n
![[Is the FD required for an RNAV (GNSS) approach with LNAV minima using NAV FPA guidance_image_3.png|600]]<\/p>\n
However, in FCOM PRO-SPO-PBN J RNP APCH\/RNAV(GNSS) – REQUIRED RNP APCH EQUIPMENT, \u201cOne FD in NAV mode\u201d is required.<\/p>\n
![[Is the FD required for an RNAV (GNSS) approach with LNAV minima using NAV FPA guidance_image_2.png|600]]<\/p>\n
So, which is correct?<\/p>\n
A1<\/strong><\/p>\nWe confirm both information are correct.<\/p>\n
As stated in FCOM PRO-SPO-PBN – RNP APCH\/RNAV(GNSS), One FD in NAV mode is required to enter RNP APCH\/RNAV(GNSS) airspace<\/mark>.<\/p>\nThe FD is required in initial, intermediate, and missed approach segments<\/mark> in order to comply with the RNP requirement.<\/p>\nHowever, in most cases, FD is not required<\/mark> in RNP APCH\/RNAV(GNSS) final segment<\/mark>.<\/p>\nQ2<\/strong><\/p>\nIs the reason for not requiring FD in the final approach segment because it is always a straight segment?<\/p>\n
Additionally, should the FCOM (PRO-NOR-SOP-180-C C APPROACH USING FPA GUIDANCE – AIRCRAFT EQUIPMENT.) clearly specify that only NAV PRIMARY is required in the final approach segment, while FD is still needed<\/mark> in other approach segments<\/mark>?\u201d<\/p>\nA2<\/strong><\/p>\nAs stated in the previous answer, the FD is required<\/mark> for RNAV(GNSS) approach done in FPA\/NAV with LNAV minima<\/mark>.<\/p>\nThis is why it is stated \u201cOne FD in NAV Mode\u201d in FCOM PRO-SPO-PBN J RNP APCH\/RNAV(GNSS) – REQUIRED RNP APCH EQUIPMENT.<\/p>\n
As per PRO-NOR-SOP-180-APPROACH USING FPA GUIDANCE, AT MINIMUM:<\/p>\n
\u201cMINIMUM\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026.MONITOR or ANNOUNCE<\/p>\n
Below minimum, the visual reference must be the primary reference until landing.<\/p>\n
\n- If visual references are sufficient: CONTINUE\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026.. ANNOUNCE<\/li>\n<\/ul>\n
AP\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026OFF<\/p>\n
FD\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026\u2026OFF<\/p>\n
The PF orders the PM to set both FD off.\u201d<\/p>\n
As you can see, even if not listed<\/mark> in the aircraft equipment, current FCOM SOP for APPROACH USING FPA GUIDANCE procedure cover usage of FD during final approach until minimum.<\/p>\nQ3<\/strong><\/p>\nYour answer make me confused.<\/p>\n
Firstly, in A2, you mentioned \u201cAs stated in the previous answer, the FD is required for RNAV(GNSS) approach done in FPA\/NAV with LNAV minima.\u201d But actully, there\u2019s not such description in A1. And in FCOM PRO-NOR-SOP-180-APPROACH USING FPA GUIDANCE, \u201c one FMS must be operative in NAV PRIMARY\u201d\uff0cnot about FD\u3002<\/p>\n
Secondly, in A2, PRO-NOR-SOP-180-APPROACH USING FPA GUIDANCE, AT MINIMUM require \u201d If visual references are sufficient: FD off\u201d. That means before FD OFF, FD is ON. However in PRO-NOR-SOP-180-APPROACH USING FPA GUIDANCE – AIRCRAFT EQUIPMENT , there\u2019s no need of FD, only \u201cone FMS must be operative in NAV PRIMARY\u201d.<\/p>\n
So my question hasn\u2019t been answered clearly.<\/p>\n
Let\u2019s go through this problem again.<\/p>\n
In FCOM PRO-SPO-PBN – RNP APCH\/RNAV(GNSS), one FD in NAV mode is required to enter RNP APCH\/RNAV(GNSS) airspace.<\/p>\n
In the AIRCRAFT EQUIPMENT of PRO-NOR-SOP-180-C APPROACH USING XLS GUIDANCE, it also refers to PRO-SPO-PBN – RNP APCH, that is, one FD is also required.<\/p>\n
However, in the AIRCRAFT EQUIPMENT of PRO-NOR-SOP-180-APPROACH USING FPA GUIDANCE, it only mentions that one FMS must be operative in NAV PRIMARY.<\/p>\n
My question is that the requirements for FD in RNAV(GNSS) approaches using XLS and FPA guidance are different. What is the reason for this?<\/p>\n
If what is mentioned in A1, \u201cHowever, in most cases, FD is not required in RNP APCH\/RNAV(GNSS) final segment.\u201d, is correct, could you please tell me the specific reason why the requirement for FD in the final segment is different from that in other flight segments? In addition, whether it is guided by XLS or FPA, there is a final segment. Then why are the requirements for FD different in RNAV(GNSS) approaches using XLS and FPA guidance?<\/p>\n
A3<\/strong><\/p>\nPlease keep in mind the FCOM PRO NOR SOP are procedure recommended<\/mark> by Airbus.<\/p>\nAs such, Airbus indeed recommend the use of FD<\/mark> for the whole<\/mark> approach procedure.<\/p>\nThis is in line with Airbus golden rules #2 : Use the appropriate level of automation at all times.<\/p>\n
As stated in message 81510379\/003, in most cases, FD is not required<\/mark> in RNP APCH\/RNAV(GNSS) final segment.<\/mark><\/p>\nIt is then up to CSC to adapt the SOP in order to match with the airline policy on this subject (i.e. to not use FD during final segment).<\/p>\n
Q4<\/strong><\/p>\nMy concern focuses on the inconsistency in FD requirements between the two guidance modes for the same approach type.<\/p>\n
The previous response was not clear enough, and what is contradictory is that if, according to the statement in the second reply, “As you can see, even if not listed in the aircraft equipment, current FCOM SOP for APPROACH USING FPA GUIDANCE procedure covers usage of FD during final approach until minimum,” then FD should be explicitly included in the required equipment.<\/p>\n
Therefore, I am now rephrasing my question and hope to receive an accurate response.<\/p>\n
In FCOM PRO-NOR-SOP-180-C A APPROACH USING XLS GUIDANCE, under AIRCRAFT EQUIPMENT For RNAV(GNSS) approaches, it is required to refer to PRO-SPO-PBN Required RNP APCH Equipment. And in REQUIRED RNP APCH EQUIPMENT, it is stated that “One FD in NAV mode is required to enter RNP APCH\/RNAV(GNSS) airspace.”<\/p>\n
In FCOM PRO-NOR-SOP-180-C C APPROACH USING FPA GUIDANCE, under AIRCRAFT EQUIPMENT, it only requires that For RNAV(GNSS) approaches, one FMS must be operative in NAV PRIMARY.<\/p>\n
If for RNAV(GNSS) approach with LNAV minima, both XLS or NAV FPA can be used for guidance. Then why do these two different guidance modes have different requirements for FD for the same approach type?<\/p>\n
A4<\/strong><\/p>\nAfter reconsidering<\/mark> the information in this part of SOP, we agree<\/mark> this information could be reviewed to be harmonized<\/mark> with the required equipment information in the PRO-SPO PBN RNP APCH section.<\/p>\nWe have launch the action to review it in next scheduled<\/mark> opportunity of FCOM revision.<\/p>\nAs a conservative approach<\/mark>, CSC can refer to the required RNP APCH equipment list<\/mark> in FCOM PRO-SPO PBN to start RNP APCH operations.<\/p>\n","protected":false},"excerpt":{"rendered":"\u53c2\u8003 PRO-NOR-SOP-180-A B CROSS-REFERENCE TABLE\uff0cRNAV(GNSS) … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[113],"tags":[],"ppma_author":[5],"class_list":["post-5477","post","type-post","status-publish","format-standard","hentry","category-fly"],"authors":[{"term_id":5,"user_id":2,"is_guest":0,"slug":"yaoguai","display_name":"\u5996\u602a","avatar_url":"https:\/\/secure.gravatar.com\/avatar\/dfe71d09a1a83f49a02a4400c69ef2c361c2d967eae2ffeeb6318b73a0da763f?s=96&r=g","author_category":"","first_name":"","last_name":"","user_url":"http:\/\/laowudewo.com","job_title":"","description":""}],"_links":{"self":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/5477","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/comments?post=5477"}],"version-history":[{"count":2,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/5477\/revisions"}],"predecessor-version":[{"id":5482,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/posts\/5477\/revisions\/5482"}],"wp:attachment":[{"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/media?parent=5477"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/categories?post=5477"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/tags?post=5477"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/caucanimax.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=5477"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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<\/a><\/p>\n![\"\"](\"http:\/\/caucanimax.com\/blog\/wordpress\/wp-content\/uploads\/2026\/06\/Is-the-FD-required-for-an-RNAV-GNSS-approach-with-LNAV-minima-using-NAV-FPA-guidance_image_2.png\")
<\/a><\/p>\n