Disney California Adventure ride reliability

1. 1Luigi's Rollickin' Roadsters28d 16h lost · 3 breakdowns · down on 60 of 60 days 4.8%
2. 2Guardians of the Galaxy - Monsters After Dark14d 6h lost · 2 breakdowns · down on 57 of 60 days 53%
3. 3Luigi's Honkin' Haul-O-Ween11d 2h lost · 186 breakdowns · down on 60 of 60 days 64.2%
4. 4Guardians of the Galaxy - Mission: BREAKOUT!9d 16h lost · 38 breakdowns · down on 57 of 60 days 67.9%
5. 5Golden Zephyr7d 23h lost · 93 breakdowns · down on 59 of 60 days 73.8%
6. 6Goofy's Sky School4d 20h lost · 106 breakdowns · down on 60 of 60 days 84.1%
7. 7Mater's Graveyard JamBOOree5d 1h lost · 3 breakdowns · down on 59 of 60 days 84.4%
8. 8WEB SLINGERS: A Spider-Man Adventure3d 14h lost · 83 breakdowns · down on 59 of 60 days 87.9%
9. 9Incredicoaster3d 11h lost · 44 breakdowns · down on 58 of 60 days 88.8%
10. 10Grizzly River Run3d 8h lost · 67 breakdowns · down on 60 of 60 days 89%
11. 11Radiator Springs Racers3d 1h lost · 69 breakdowns · down on 58 of 60 days 90.2%
12. 12Silly Symphony Swings2d 20h lost · 73 breakdowns · down on 59 of 60 days 90.7%
13. 13Pixar Pal-A-Round - Swinging2d 11h lost · 43 breakdowns · down on 58 of 60 days 91.9%
14. 14Pixar Pal-A-Round – Non-Swinging2d 10h lost · 42 breakdowns · down on 58 of 60 days 92%
15. 15Inside Out Emotional Whirlwind2d 2h lost · 118 breakdowns · down on 60 of 60 days 93.1%
16. 16Monsters, Inc. Mike & Sulley to the Rescue!1d 21h lost · 70 breakdowns · down on 57 of 60 days 93.9%
17. 17The Little Mermaid - Ariel's Undersea Adventure1d 12h lost · 26 breakdowns · down on 56 of 60 days 95%
18. 18Jessie's Critter Carousel1d 11h lost · 67 breakdowns · down on 60 of 60 days 95.3%
19. 19Toy Story Midway Mania!1d 5h lost · 23 breakdowns · down on 60 of 60 days 95.9%
20. 20Jumpin' Jellyfish13h 33m lost · 19 breakdowns · down on 56 of 60 days 98.1%
21. 21Soarin’ Across America4h 24m lost · 5 breakdowns · down on 50 of 60 days 99.4%

Breakdowns cluster at 2pm, with 130 of the 1,169 closures that started before the park's final hour beginning then - so the ride you most want is safest earlier in the day, not saved for last. A further 182 rides simply were not running at opening, which is a late start rather than a fault and is counted separately. The other 11 closures start in the 9pm hour, when the park is shutting - those are rides finishing their day, not failing, so they are left out here.

The worst day in this window was 4 Nov, when 30.6% of the park's ride hours were lost and 22 of 22 rides went down at some point.