piątek, 6 marca 2015

The weirdest plane crashes- Pilot vs Instruments Part Two

This time something different. Pilots with wrong instruments. Wrongly indicating components. This happens in life, however it's not always it. Some pilots do know that the other crewman are doing the wrong thing, but don't want to tell them. It happened in history.
This time, not the weirdest plane crashes, but some unusual ones. Now, let's see one of them.

Air India 855 Deadly Indicators.
On New Years day, 1978 Air India 855 was taking a flight from Mumbai to Dubai. There were 213 people on board. The aircraft operating the flight was A Boeing 747-200, Emperor Ashoka, the first Jumbo jet delivered to the airline.

 The plane took off Mumbai Intl Airport at 20:40. After a minute the crew was supposed to turn right. The captain began the turn.
Shortly the Captain noticed a toppled ADI, meaning it is stuck, showing the plane is still in a right turn. The F/O agreed with the commanders statement, however the Flight Engineer, looking at the Backup ADI noticed a difference. The Captain however had his own solution, banking the plane even more to the left. The commander used the rudder and yoke to control the plane, the FE tolled the captain not to bank the plane, however he didn't stop. Just 101 seconds after take-off the plane hit water.
All passengers and crew perished. It was the deadliest air crash of India at the time.
The cause of the crash, well two factors. ADI malfunction. The captains artificial horizon wasn't working properly. It was stuck on a right bank indication.
Indicators sometimes fail, that's normal. This time, however the pilots were at fault. At first, the captain is god. That is  the way the first officer (at all) and Flight engineer (too late and probably not to directly) didn't tell the captain, that he shouldn't turn the plane left and left even more. Quite common.
Tenerife, March 23rd. A KLM 747-200 collides with a Pan Am Jumbo jet. The captain of the KLM captain began the takeoff roll with ATC clearance. The other crewman did know the situation, but didn't tell the captain about his mistake. In addition the commander trained and gave licence to the First officer, the F/O obviously didn't want to tell him about the mistake. Like if you wanted to tell your boss, that he made a mistake. Easy to say, but hard to do.
Another 747 (200 ironically) crash with an indicator problem occurred in 1999. A Korean Air Cargo plane lost control and crashed near Stansted, after a malfunctioning gyro made the captains ADI do funky stuff and indicate weird things, he steered and banked the plane, until it crashed. The First Officer and Flight Engineer were much younger, and refused to say that the commander overbanked his plane. Another aspect, politeness to people with higher ranks is well known and usual to many Asian cultures. It includes Korea.
A plus of it all, now pilots flying together have to be similar age. There's also training, so that F/O make remarks and notes of captains mistakes, a general improvement is seen. Hopefully similar crashes won't ever happen. Because the captain isn't god. He is as human as other pilots, just mor experienced. Usually.