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Incident: Hawaiian B717 at Kahului on Feb 1st 2017, near collision on takeoff with Cessna taking off without clearance

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A Hawaiian Airlines Boeing 717-200, registration N478HA performing flight HA-155 from Kahului,HI to Honolulu,HI (USA) with 125 passengers and 5 crew, was in the initial climb out of Kahului's runway 02. A Cessna Caravan departed Kahului's runway 05 at the same time, however, without clearance. (avherald.com) Daha Fazlası...

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termigrator
termigrator 4
There is another issue to be noted here: According to the ICAO rules, a takeoff clearance must also contain the runway designator, if more then one runway is in use. The runway designator has also to be repeated by the pilot. Consequently, there are two indications to distinguish which aircraft was meant. Omitting the runway-designator within the takeoff-clearance by the Tower would be a poor handling, setting power for takeoff based only on a callsign-fragment is a very poor handling in sure
mattgreg21
mattgreg21 3
The view is clearly blocked by the terminal. Right?
runway18escanaba
100% blocked
theworm
Robert Austen 2
If you're not sure, it costs nothing to ask.
"Tower, XX5, say again?", or,
"Tower, XX5, was that clearance for me?"
you might (briefly) feel like a n00b, but you'll live to fly another day.
JimHeslop
Jim Heslop 1
It just baffles me that with today's technology, that ATC and pilots still use the ancient method of communication that allows them to 'walk over' each other.
It is perfectly clear that this can lead to assuptions that those involved will hear what they expect to hear instead of what WAS said.

The largest disaster between the collision of two 747s at the fog bound runway at Tenerife, may have been avoided, if that 4second 'walk over' in communication with ATC did not exist and everyone could hear everybody speaking, that MAY have been the break in the link that could have avoided the crash.
That was 40 years ago! And they are STILL using the same communication methods? Might as well get them to use morse-code!
FrankHarvey
Frank Harvey 3
I think that while walking over each other was a factor Tenerife was a bit more complicated than that. If memory serves me correctly the KLM CVR transcript appears to imply the right seat and the engineer both realized they did not have clearance and it was the left seat who initiated the roll even after they cautioned him. Also the Papa had missed his exit in the fog and their CVR transcript seemed to indicate some kidding around about the correct one to take. It might also appear that the KLM was worried about exceeding duty hours and wanted to get the bird home for the next day's turn. He also had contributed to the congestion by partially blocking the taxiway/hard stand while refueing.
Zaphod58
Steven Fortson 1
Correct. The captain flying for KLM was one of their most experienced captains. The right seat was fairly inexperienced and reluctant to contradict him.

The captain was also feeling pressure to get to their destination because of duty day remaining.
vblue0115
Vaughn Blue Jr 1
Not being a pilot I see problems with both the ATC & Cessna pilot.
CrystaleRenken
Crystale Renken -6
Why is the Cessna taking off without clearance? Can't they see a Boeing 717-200 aircraft taking off? Now that is what I call being crazy & stupid!!! People would've been injured or worse!!!

ToddBaldwin3
ToddBaldwin3 5
Quite often, the situation is a lot more complicated than what you see at first glance. When all the evidence is examined, what might, at first appeared to be reckless and foolish, turns out not to be.
ahuimanu
ahuimanu 2
The terminal blocks each from seeing each other.
THRUSTT
THRUSTT 1
I do it all the time. Hard to see Boeing 717-200's, unlike Boeing 377's...
stansdds
"The operator of the Cessna Carvan reported that the callsign of his flight also ended in 5. When the pilot heard " ...5 cleared for takeoff" he thought, he was cleared for takeoff, acknowledged, lined up and departed. As there is usually no response from tower on the readback the pilot did not recognize anything untoward, however, both Hawaiian and the Cessna transmitted at the same time blocking each other's call. Tower actually heard the Hawaiian readback, but did not pick up the Cessna readback. Steps are already being taken to prevent a repeat."

Both call signs ended in "5", the tower heard the Boeing crew on the radio, but the Cessna pilot was trying to radio the tower at the same time. Communication issue is at least partially to blame, the Cessna pilot hearing only the last digit in the call sign and assuming the tower was giving him clearance is the other part of this failure.

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