Boeing, not Spirit, mis-installed piece that blew off Alaska MAX 9

What level of involvement does Spirit AeroSystems have in the production of Boeing planes? - Quora

Breeze Airways Archives - Airplane Geeks Podcast

Cert requirement: continue safe flight and land after 4 lb bird strike., Peter Lemme posted on the topic

Boeing is in talks to buy ex-unit Spirit AeroSystems

Boeing 737 Max again, it would be nice if the windows stayed in!

NTSB says four bolts 'missing' on Alaska Airlines 737 Max 9 door plug blowout : NPR

Aerospace Design Engineering

Boeing, not supplier, mis-installed piece that blew off Alaska Airlines MAX 9 jet, industry source says - Anchorage Daily News

What do you think caused the missing panel that blew off the new Boeing 737 MAX 9 jet? - Quora

Turbulence at Boeing - Marketplace

Panel on Boeing Plane May Not Have Been Properly Attached, Agency Says - The New York Times

Spirit Airlines Archives - Airplane Geeks Podcast

Investigation into why a panel blew off a Boeing Max 9 jet focuses on missing bolts