December 4, 2025
Melted part, melted comments
Plane crashed after 3D-printed part collapsed
3D-printed plane piece melts; commenters cry “Darwin Award”
TLDR: A plane’s 3D‑printed plastic engine part softened and collapsed, causing a power loss and crash with minor injuries. Commenters blasted the material choice as obvious negligence, debated whether 3D printing is fine if done right, and demanded stricter rules for heat‑exposed parts in aviation.
A light plane crash in the U.K. lit up the internet after investigators said a 3D‑printed plastic part near the engine softened, collapsed, and killed the power on final approach. The pilot walked away with minor injuries, but the comments did not. The AAIB called the part “inappropriate material,” and the Light Aircraft Association says alerts are coming. Meanwhile, the community is roasting the choice like a marshmallow over a jet exhaust.
Top sleuths immediately asked, what plastic was it? Multiple posters pointed to the official report and said it was CF‑ABS—a carbon‑fiber filled version of ABS, a common plastic that still doesn’t love heat. One commenter spelled it out: this stuff shouldn’t be stressed above 65–70°C, and, uh, engines get hot. Cue the collective facepalm.
The drama split fast: one camp blasted the decision as negligence—“the whole point of 3D printing is it melts when hot,” they fumed—while others argued 3D printing isn’t the villain; bad material choices are. In classic internet style, jokes flew: “Darwin Award?” quipped one user, while link‑droppers dropped receipts to the official AAIB report and the incident page. Verdict from the crowd: print parts if you want—just not where the engine cooks them.
Key Points
- •AAIB found a 3D‑printed plastic air induction elbow softened from engine heat and collapsed, causing engine power loss.
- •The Cozy Mk IV crashed at Gloucestershire Airport, Staverton, on 18 March at 13:04 GMT.
- •The pilot advanced the throttle on final approach and experienced complete engine power loss, landing short and striking the ILS structure.
- •The sole occupant sustained minor injuries; the aircraft was destroyed.
- •The LAA plans safety actions, including a “LAA Alert” about the use of 3D‑printed parts.