LKTRA37Z限制区,Flight Plan Buffer Zones(FBZ)

前几天,布达佩斯航班的航路在捷克境内遇到了欧空的退报,退报的原因是:

LKTRA37Z: Traffic is not allowed to fliehtplan across active military area FBZ

这个FBZ是什么东西?

找了一下定义:

Flight Plan Buffer Zones (FBZ)
Flight Plan Buffer Zones (FBZ) are established around AMC Manageable TSA / TRA for flight planning purposes. The purpose of FBZ is FPL validation only.
The FBZ identification is the same as the TSA / TRA identificationaround which it is established and is supplemented by the letter “z”(for example, LKTSA1Z is the FBZ for LKTSA1).
The activation time of the FBZ is identical to the activation time of therespective TSA/TRA. FBZ are AMC manageable.

意思是LKTRA37Z的限制区,其实是LKTRA37限制区的缓冲区。

随后我们在捷克的AIP里找到了的LKTRA37区域

从航图上看

这一大块区域是37Z,真正的限制是在当中的NOVA PAKA 37。像包饺子一样,在外层报了一层37Z,用来做缓冲。

但是该限制区的活动时间,并未在布拉格情报区LKAA的NOTAM中公布,需要根据捷克AIP提示,在捷克发布AUP(Airspace use plan)的专用网站AisView.rlp.cz上查询才能得知。查询结果如下:

后续与导航席位商议的临时解决方案为,将航路HDO DCT ODNEM走向改为通过西南侧航路点ODLIV以避开限制区(见下图),即HDO DCT ODLIV DCT ODNEM,改航后欧控校验通过,航班正常执行。