[媒体名称]Business Today [新闻日期]2018/12/29
[网址]
https://goo.gl/FMWQkt
长荣/KLM/NCR三航空于德里FIR触发多次TCAS
可直接看FR24:
https://www.flightradar24.com/2018-12-22/23:23/12x/NCR840/1ef51474
2018/12/23
A: KLM875; 777-300ER; AMS-BKK
B: EVA061; 777-300ER; TPE-VIE
C. NCR840; 744-BCF ; Bagram (in Afghanistan)-HKG
A.往东行 at flight level 330 (33000 ft)
B 往西行 at flight level 320 (32000 ft)
C.往东行 at flight level 310 (31000 ft)
No1.TCAS: B & C 交会时过度接近触发TCAS/空中防撞系统警告
Accordingly, EVA想爬至FL330; NCR想爬升至FL350
No2.TCAS: B(长荣)因此欲爬升至FL330, 结果KLM那架也在那里,因此触发第2次TCAS
No3.TCAS: 当NCR又想下降至FL330时,又与长荣一度过于接近,因此触发第3次TCAS
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ATC helps avert mid-air collision of three planes close to Delhi flight
information region
Three planes of three foreign airlines, carrying hundreds of passengers, came
perilously close in the Delhi flight information region and collisions were
averted after multiple auto-generated warnings and intervention from ATC
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Last Updated: December 29, 2018 | 08:44 IST
ATC helps avert mid-air collision of three planes close to Delhi flight
information region
In a rare incident, three planes of three foreign airlines, carrying hundreds
of passengers, came perilously close in the Delhi flight information region
and collisions were averted after multiple auto-generated warnings and
intervention from ATC, an official said Friday.
The Aircraft Accident Investigation Bureau (AAIB) has started a probe into
the incident, which happened on December 23.
Flights of Dutch carrier KLM, Taiwan's Eva Air and the US-based National
Airlines were involved in the incident, the official said.
The incident happened in the Delhi Flight Information Region (FIR).
An FIR refers to specified airspace where flight information and alerting
services are provided. Generally, an FIR can be land and sea territory as
well as any international airspace as defined under global norms.
According to the official, at the time of the incident, National Airlines'
flight NCR 840 was on its way to Hong Kong from Bagram in Afghanistan while
the KLM Flight KLM 875 was heading to Bangkok from Amsterdam.
The Eva Air flight EVA 061 was flying to Vienna from Bangkok, the official
said.
"First it was NCR 840, which was flying at flight level 310 (31,000 ft) and
EVA 061 at flight level 320 (32,000 ft) which breached mandatory separation.
The pilots of both the aircraft were alerted by the onboard TCAS warning
system," the official said.
Around the same time, the KLM flight was at 33,000 ft, he added.
Following the TCAS (Traffic Collision Avoidance System) warning, the pilot of
NCR 840 sought to climb to 35,000 feet but was told to remain at that current
level till the time it gets a go-ahead.
"However, when the air traffic controller (ATC) observed it climbing, it was
immediately asked to take a left turn. In the meantime, EVA also continued
climbing at flight level 330, a level at which KLM was already flying, and at
this time, another TCAS warning went off, alerting the pilots to steer the
aircraft to a safer distance," the official said.
As the NCR 840 again descended to flight level 330, it came across the EVA
flight, triggering another TCAS alarm, the official said.