Aircraft Part Failures

Discussions center on recent airliner incidents involving detached components like engine cowlings, wings, or panels, with speculation on causes including maintenance errors, design flaws from winglets or engines, and manufacturing issues.

📉 Falling 0.5x Hardware
3,792
Comments
20
Years Active
5
Top Authors
#5471
Topic ID

Activity Over Time

2007
2
2008
8
2009
33
2010
42
2011
28
2012
40
2013
76
2014
125
2015
145
2016
117
2017
161
2018
193
2019
530
2020
285
2021
382
2022
246
2023
433
2024
615
2025
311
2026
20

Keywords

McDonnell US MCAS charts.com F101 map.png McDonnel QC FAA en.m plane aircraft engine maintenance debris failure wing engines failures investigation

Sample Comments

samus Jan 24, 2024 View on HN

The wing was an exaggeration. Plenty of other critical parts could fall off.

throwaway5752 Oct 31, 2019 View on HN

Yes, but it's very long cycle failures at low frequency, and people suspect it's because of additional stress caused by winglets. Winglets reduce drag and save fuel, it's an important change. It may have been very difficult to predict and test this failure. And most importantly, the FAA and Boeing are handling it properly.

avalys Nov 5, 2025 View on HN

Every multi-engine airliner is designed to be able to take off safely even if an engine fails at a critical moment. What might have happened in this case is that the mechanism of failure of one engine caused damaged or interfered with the operation of another engine (via smoke, debris, etc.), and taking off with two engines degraded is not part of the design criteria.

HeyLaughingBoy Nov 10, 2023 View on HN

Sounds more like a Customer Use Error. Speculation is that the panes only fell off during the takeoff roll/climbout so inspection wouldn't have caught it.

shrubble May 9, 2024 View on HN

Very likely a maintenance-related issue, given the age of the plane.

wkat4242 Apr 8, 2024 View on HN

Yeah cowlings are removed very regularly for maintenance and this plane is the previous model so it's bound to be a number of years old. That cowling will have been taken apart many times. Maintenance is more likely, or perhaps some foreign object impact.The MCAS issues and the poor QC on those plug bolts are unforgivable but it's too early to point the finger at Boeing for this.

cjbprime Jan 6, 2024 View on HN

A maintenance issue on a ten week old plane?

retrocryptid Jan 24, 2024 View on HN

I don't think the wing fell off the plane and there are several types of failures which are distressing short of the wing falling off.

raverbashing Jul 9, 2023 View on HN

This sucks but it is not that big of a dealJet bridges can fail that way and doors get ripped off exactly to not make a bigger mess in that caseInsurance, maintenance, etc are all there for a reason. Plane should be back into service soon

jarin Dec 6, 2011 View on HN

Hoo boy, that could be dangerous if there's something physically wrong with the plane (a non-functional aileron or stabilator, for example).