Airlines are complex machines with more and more systems controlled by wire. Is there any senior manager with multiple engineering degrees, aerospace, electrical, mechanical, structural, software, etc., etc., etc., that can look at multiple systems and determine their efficacy and safety?
This is a distorted view of airline maintenance. I was a field engineer, embedded with the airlines for my whole career. Look at aircraft maintenance more like a hospital. The pilot writes a complaint, a mechanic/inspector (technician/nurse) evaluates the problem and fixes it or refers it to a "specialist" engineer, structural, electronic, engine, HVAC etc. etc.
The engineer has limited power to go beyond the manual - using DER (delegated FAA authority) - these are called minor repairs or alterations. If the problem is beyond that, then that's when a factory/manufacturers rep may be called.
That's what I did. And then (engines) I had access to metallurgists, designers, and a whole army of factory support to design "major" repairs. Even as the manufacturer we could not just issue these repairs - we needed FAA approval to do so.
Their training or lack thereof. Did you know that Lion Air is not allowed to fly in the US? I wonder why that is?
That the owner of Lion Air, Rusdi Kirana was a street wise hustler that sold typewriters on the streets of Jakarta.
I ran Asia for 25+ years. I met Rusdi on several occasions - Your description of him isn't fair, or at least complete. He is cut in the mold of Richard Branson, Tony Ferrnandez etc.
To better characterize Lion Air - the CEO was his son. Another son became the head of a motorcycle manufacturing company.
Rusdi was a self made millionaire. No one calls Richard Branson a street hustler.
Then became involved in the travel industry when he realized there was a need for more planes to carry passengers around the islands. That's when he started Lion Air. From what I've read, he wasn't big on quality and sometimes bought used parts for his fleet of 737's. And sometimes bought junk from unscrupulous dealers who would never be allowed to sell parts in the US.
The boom in Low Cost carriers is not unique to Indonesia or Asia. Anyone heard of RyanAir? JetBlue, Spirit?
IN my 15+ years of working with Lion Air I never witnessed them knowingly buying junk parts. Used parts are a fixture for airlines. Fedex and UPS fly the largest cargo fleets in the world. You think they are making parts for the 747-400 any more?
The details are nuanced but the reason Lion Air is suspended is statistical. When an airlines incident rate reaches a certain point they get suspended.
I won't air too much dirty laundry but I testified to the DGCA (Indonesian FAA) on some of their problems along with Airbus and Boeing. I will only say that Garuda (the national airline) was also suspended for a time. Philippine Airlines was suspended for a time. It is not unheard of for this to happen.
I might get in trouble for saying this part publicly but the regulatory authorities ability to "properly" regulate the whole industry in the country was a contributing factor.