[dheera]

Wonder why they don't just grab a huge permanent Sharpie and write in huge letters "Do not insert pin here" on one hole and "Insert pin here" on the other hole.

I'm actually serious, it seems to me they resist these kind of short-term helpers that would save lots of injuries.

[bombcar]

You’re likely a fan of this: https://i.sstatic.net/vaPH0.jpg

[stefan_]

I think the report says they just put a little cover on the hole where the pin shouldn't go (but can).

[dheera]

Sure, but they probably took 3 years to have a design review, an executive review, some firings and layoffs, re-hire, orientation, a sprint planning meeting, a sprint retro, a post mortem, an OKR meeting, a KPI meeting, an all-hands, and then the cover probably got stuck in customs with tariffs, and then the tolerances probably weren't correct.

Meanwhile the sharpie would take 1 minute.

[phil21]

> Meanwhile the sharpie would take 1 minute.

And eventually be missed/ignored by a rushed ground tech and fail again.

Other than making it easier to blame someone, labeling is just a short term interim fix for such things. You design it to be physically impossible or as close to that as possible.

Been there, done that in much less high stakes environments. Upping the training, documentation, and labeling simply makes the mistakes happen less often for a physical process obviously prone to a common mistake.

Sure as an immediate airworthiness directive giant bright lettering is a great immediate “this month” fix. Certainly not a permanent one though.

If you make a hole multiple things can be fit into, eventually someone will try.