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Proactive, Not Reactive, Aircraft Inspection

Posted April 22, 2011 8:25 AM

Disaster was averted by a competent pilot when the fuselage of a Southwest Airlines Boeing 737-300 aircraft recently ruptured during flight. Authorities immediately began inspecting the defective area on other aircraft. Granted, testing is expensive, but shouldn't aircraft inspection be more aggressively proactive and less reactive? This part of the fuselage, after all, had not been subject to previous testing because there had never been a problem before.

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Guru

Join Date: Jun 2006
Posts: 501
Good Answers: 8
#1

Re: Proactive, Not Reactive, Aircraft Inspection

04/23/2011 11:21 AM

Turns out the aulunimum skin had the rivet holes drilled oversize!

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Participant

Join Date: Apr 2011
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#2
In reply to #1

Re: Proactive, Not Reactive, Aircraft Inspection

04/23/2011 1:37 PM

That's similar to one of the incidents I caught on discovery channel, where during maintenance, the technician changed a windshield and replaced the screws (a normal practice) but, with undersized ones!!! In mid flight, the windshield popped off due to greater cabin pressure and the pilot was sucked out, with his legs caught inside the cabin against the window sill, and his body exposed outside the cabin to the harsh extremeties!!! the crew gained control, lowered the altitude to control the fast losing cabin pressure and increase oxygen levels and then landed the plane at the neaest airstrip, all this while holding onto the legs of the captain outside the cockpit from within the aircraft, unknown to the fact if they were holding on to an alive captain or just his body!!! Miraculously he survived on touch down!!!
Since then, they changed the design of the windshield and now they can be fitted only from the inside rather than being bolted on from the outside, thereby, in the event of an accident, they would not pop out, but instead rest against the window sill!!! a simple innovation, but effective!!!

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#5
In reply to #1

Re: Proactive, Not Reactive, Aircraft Inspection

04/24/2011 10:44 PM

I would appreciate your stating the authoritative source of this information. Was it from a reputable and knowledgeable source, or from someone's speculation? It's important to know this.

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#3

Re: Proactive, Not Reactive, Aircraft Inspection

04/24/2011 2:33 AM

That part of the fuselage hadn't had a problem before, so theoretically it was safe to fly IF the various levels of inspection on the aircraft are completed as per 'spec'. However some aircraft are being subjected to more flight cycles than considered 'normal'. If I remember the story behind this 'peeling' - the a/c had flown about 1/3rd more than was considered safe. Simply put, it was too old.

It's not just the 'testing', but regular pro-active maintenance, legitimate parts and properly trained personnel - all $$$.

The airlines don't want to spend money for a newer fleet. Who can afford a new car these days..try that with aircraft. Our only way to avoid these sort of confrontations, is to fly with companies which do upgrade their fleets with newer a/c.

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#4

Re: Proactive, Not Reactive, Aircraft Inspection

04/24/2011 3:45 AM

Maintenance dollars have been reduced by outsourcing or delaying inspections. This is the expected result.

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#6

Re: Proactive, Not Reactive, Aircraft Inspection

04/24/2011 11:51 PM

"This part of the fuselage, after all, had not been subject to previous testing because there had never been a problem before"

This may be of interest

For the non-link followers;

"The Service Difficulty Report (SDR) history for the Southwest 737 involved in the incident on April 1 shows numerous crack repairs, including one for the fuselage as recently as March 2010 during a scheduled maintenance check.

In 2008, the FAA imposed a $10.2 million penalty on Southwest for failing to correctly inspect some 737s for fuselage cracks in 2007. After Southwest discovered the lack of inspections in March 2008, it continued to operate the aircraft for eight more days on 1,451 flights, the FAA said."

"but shouldn't aircraft inspection be more aggressively proactive and less reactive?"

More like "but shouldn't aircraft inspection be done"?

But it's nice they had "a competent pilot"

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