“... This step may seem cumbersome, but it is actually normal and not troublesome, because the ground refueling staff at each airport will be proficient in conversion and cannot make mistakes.

There's a problem!

The new Boeing 767 was first used for commercial flights in December 1982, and the amount of fuel required for the flight was measured in 'kilograms'!

For example, a flight needs to be filled with 10,000 kilograms of fuel, but the buddy who is responsible for ground refueling at the airport is not familiar with this latest American-made large passenger aircraft.

And the captain didn't check it carefully, and when he got the refueling receipt given by the airport staff, he thought it was no problem when he got the refueling receipt given by the airport staff. What's more coincidental is that the aircraft fuel gauge was a little bit of a problem before, because the accessories were not delivered to the home airport and were sick to carry out the flight mission, and the consequence was that the plane ran out of fuel halfway after flying, but the fuel gauge could not be seen at all"

Chariz Theron looked incredulous: "This is okay?!"

1 pound is almost equal to less than 0.454 kilograms, and the ground refueling crew only added less than half the fuel to the plane, which made the plane fly away!

What is this called!

When a lot of small problems come together by coincidence, they will kill people!

The British system, the metric system, who made the original Britain once the sun never set, the whole world has been affected by it, like in China, the production of hammers is counted by "pounds".

Some things are okay with the British system, and some places are just a bunch of troubles: the FAL rifles that mercenaries liked in the seventies and eighties are still used in different models of the imperial and metric systems, and they look exactly the same, but as a result, a bunch of parts are not interchangeable,-!

There is also the speed dial of the car, and some cars have two circles of numbers on the dashboard inside and out, one circle of miles, one circle of kilometers, and people are dizzy when they see it!

If you look at the wrong speed limit road sign on the ground, you will be fined, and it will be miserable in the sky! And Zhang Nan still remembers one thing about the plane running out of fuel halfway through, but it seems that the plane crash has not happened yet.

It should be more than ten years later, a twin-turboprop regional airliner jointly produced by France and Italy fell into the Mediterranean, because of a new fuel gauge!

The plane's original fuel gauge was faulty, and the pilot asked the company's ground maintenance staff to replace it with a new one, but the problem was that there were two small models of this plane, the plane was a B type, but it was replaced with a Type A fuel gauge.

The next day, the two pilots on the flight mission went to the cockpit to prepare for takeoff, and looked at the fuel gauge ...

"Strange, why did you refuel so early?"

The ground crew, those people have become so diligent?

The fuel gauge showed that there were more than three tons of fuel in the fuel tank of the plane, but there was no refueling receipt left by the refueling officer in the cockpit.

Ask the tower: "Man, the gas is filled, what about the refueling note for the fuel truck?"

The Tatai buddy replied, "Can't find it?"

It's okay, I'll wait until you come back to make up for you. ”

The note should be handed over to the company for accounting and filing.

The towers have said so, so let's fly.

The pilot of the Tunis Airlines plane flew to Italy across the Mediterranean Sea and was to return that day.

After arriving in Italy, the pilot looked at the fuel gauge and found that there was still 1,950 kilograms of fuel left, and the return airport was different and the distance was farther, so the Italian airport added another 400 kilograms of fuel for the sake of insurance, which was enough to go home.

happily flew back to China, less than halfway...

It fell into the sea, but at that time the fuel gauge showed that there was still 1,800 kilograms of fuel in the plane!

In the last investigation, the airport in Tunisia had not refueled the plane at all that morning, and the tower had pitted the pilots!

The pilots themselves made a small mistake and did not strictly follow the regulations: ask the ground refueling department for the refueling receipt!

The best part is that brand new fuel gauge!

A fuel gauges of the same size can be mounted on a B type aircraft, and there is only a small set of numbers on the outer shell to distinguish them: for example, one is marked "2500" and the other is marked "2250".

The consequence: even if there is not a single bit of fuel in the plane, the fuel gauge will show that there is still 1,800 kilograms of fuel on the fuel gauge because the sensors in the fuel tank do not match!

So when the hapless plane left Italy and returned, the pilots thought there were 2,350 kilograms of fuel in the plane, but in fact it was only a pitiful 550 kilograms!

The problems on this plane are strange, anyway, Zhang Nan is a little panicked, so whether it is his private fleet or a private airport, this management method not only uses the set of civil aviation, but also applies some appropriate regulations of the Air Force.

You can't go wrong in any of the articulations!

I suspect that you will be paid the highest salary in the industry, and you must also show the most professional attitude!

......

The next morning, there was news in the morning news: the host broadcast the judgment of several American private jet pilots, and someone actually tested it with the flight simulator of the Airbus A320.

The speed was very fast, because Mike and the others were on the phone yesterday in the restaurant of the pilot's apartment at Bordeaux Airport, and Zhang Nan said that he wanted them to contact him.

The other pilots from all over the world who were in the same apartment didn't know that Zhang Nan had discovered the situation, but the news spread so fast that by dawn, many major international media and airlines knew about it!

In particular, companies that use the same type of autopilot aircraft as the A320 are even more concerned, and more than one company has done tests on this night.

As a result, "3.3 degrees" became "11 degrees"!

There are also afterthoughts: the unnamed pilots of two airlines broke the news that they had also encountered such a problem, and the plane was in the clouds during landing, and it turned out that the altitude was much lower than expected!

Fortunately, they still have the height, and the danger was avoided after switching to manual driving, but they just didn't understand the reason, and the company didn't pay attention to it.

The pilots themselves were inattentive and embarrassed to speak too clearly.

The Air France A320 was not so lucky, it lost its height and hit the mountain!

Well, Mike and the others stepped on Airbus hard, and also gave Boeing a wake-up call, but in general, Airbus and Air France in Europe have a headache, and Boeing still laughs: when Zhang Nan led people to dig the second burial point in the morning, Boeing's sales department even called to thank you.

Simple, Zhang Nan is their high-quality customer, not only does he use Boeing's private jets, but he is also a major shareholder of American Airlines, and his pilots have discovered this safety hazard, which is of course a good opportunity to get in touch and contact feelings.

Instead of paying attention to the nerve-wracking French, the focus was on the excavation: the pit was not big, and it was a wooden box that was almost rotten.

The box was originally very thick, and there were a lot of wooden planks left, and the contents did not disappoint Zhang Nan: a pile of crowns, and an item wrapped in a thick unknown substance.

Zhang Nan didn't pay attention to the crown first, and after taking out the item with a length of about 50 by 40 by 16 centimeters, he said with a little emotion: "I didn't expect that medieval Europe also knew this method." ”

"What is this?"

Adjani asked, looking at the large object that looked like a layer of brown impermeable cement.

"This is the book!"