Abstract of the NTSB Report on Air Canada flight 759's taxiway overflight at SFO [pdf]

Post by jackpirate » Thu, Sep 27, 2018, 3:30 AM UTC

scrumper wrote: post #37

glup wrote: post #34

Earlier quoted context omitted.

Also that they cite fatigue / circadian low as one of the core causes. I thought they might avoid it because of the potential cost implications for the airline industry.

Worth noting that the Canadian regulations are looser than USA in that respect - the Air Canada pilots were in compliance with home regs, but would have been in breach of FAA regs. Other point is that the NTSB isn't generally particularly shy about calling out the need for expensive changes (one example being their recommendation for fuel tank inerting systems after TWA 800). They have no power to mandate their recom…

Post by fatbird » Thu, Sep 27, 2018, 4:01 AM UTC

djrogers wrote: post #85

TylerE wrote: post #41

Earlier quoted context omitted.

I'd assume like cameras used at sporting events the lens would be covered by a clear plastic film on a roll, which can be moved to get a clean section. A bit like those toilet seat covers in airports, ironically.

> covered by a clear plastic film on a roll, which can be moved to get a clean section. A bit like those toilet seat covers What? Is that really a thing? Toilet seat covers on a roll? How would that even work?

Post by village-idiot » Thu, Sep 27, 2018, 4:12 AM UTC

organman91 wrote: post #9

As a private pilot, small planes going down occasionally are just a fact of life. But this incident scares me. There were four planes lined up on the taxiway the Air Canada narrowly missed. The worst aviation accident ever was a collision of two 747s resulting in 583 deaths: https://en.wikipedia.org/wiki/Tenerife_airport_disaster - this could have doubled that number.

Post by oh_sigh » Thu, Sep 27, 2018, 5:14 AM UTC

organman91 wrote: post #9

As a private pilot, small planes going down occasionally are just a fact of life. But this incident scares me. There were four planes lined up on the taxiway the Air Canada narrowly missed. The worst aviation accident ever was a collision of two 747s resulting in 583 deaths: https://en.wikipedia.org/wiki/Tenerife_airport_disaster - this could have doubled that number.

Post by oh_sigh » Thu, Sep 27, 2018, 5:25 AM UTC

abaillargeon wrote: post #86

sandworm101 wrote: post #70

Earlier quoted context omitted.

How do you account for winds and pressure differences, both of which will modify an approach. A plane may look like it is landing short, or to the left/right, when in fact the pilot is anticipating a change in wind as they drop in altitude.

Good question. We've run into similar issues while developing a related feature that helps pilots perform a stable approach. Sometimes pilots were performing a circling approach to a different runway, and a naive approach to determining lateral deviations would have caused a nuisance alert. For this particular system, the alerting threshold is only met when we've determined that the aircraft is "landing". As I mentio…