TUESDAY,
TUESDAY, WEDNESDAY LOOKS GOOD AS WE INTRODUCE SPRING AND THEN
WE HAVE THE NEW SYSTEM STARTING
TO
TO MOVE
TO MOVE IN, IT COOLS DOWN A LITTLE BIT, RINGS A FEW
SHOWERS, WE DON'T SEE ANY MAJOR
COLD DIPS ANYTIME SOON.
>> THANKS, JORDAN.
>>> WHAT COULD IT HAVE BEEN
LIKE IN THE COCKPIT OF THAT ILL-
FATED ETHIOPIAN MAX INKJET?
ARE WE BEGIN TO GET AN IDEA
WITH A NEWS REPORT ABOUT THE
PILOTS
PILOTS COMMUNICATIONS WITH AIR TRAFFIC CONTROLLERS.
TRAFFIC CONTROLLERS. KING 5 AVIATION SPECIALIST,
LYNN FARLEY JOINS US WITH THE
LATEST ON INVESTIGATION.
>> Reporter: WHEN SOMETHING
LIKE THIS, BREAK BREAK, REQUEST
BACK TO HOME, RADIOED THE
CAPTAIN FROM ETHIOPIAN FLIGHT
302 TO AIR TRAFFIC CONTROLLERS.
THOSE WORDS PUBLISHED IN THE
NEW YORK TIMES AS REPORTED BY A
SOURCE THAT HEARD THE TAPES AS
THE PILOT SAID HE WANTED TO
RETURN TO THE AIRPORT.
THE COCKPIT VOICE RECORDER IN
THE LAB IN PARIS EXPECTED TO BE
RIGHT OUT ANYTIME WHICH WILL
HELP INVESTIGATORS UNDERSTAND
EVEN MORE ABOUT JUST WHAT WENT
ON INSIDE THE COCKPIT.
>> I WILL LEVEL OUT ON 150
HEADING AND THEN I WILL TRY TO
RE-CREATE HOW THEY, THE McAS
WOULD HAVE REACTED.
>> Reporter: MARY MURPHY IS A
CANADIAN FLIGHT INSTRUCTOR
INSIDE A 737 SIMULATOR.
HE IS TRYING TO GIVE US AN IDEA
OF HOW A PROBLEM WITH THE McAS
SYSTEM, ONLY USED IN THE 737
MAX COULD HAVE BEEN HANDLED IN
FLIGHT.
FLIGHT.
FLIGHT. McAS, WHICH STANDS FOR
MANEUVERING CHARACTERISTICS
MANEUVERING CHARACTERISTICS AUGMENTATIONS SYSTEM, IS AGAIN
SUSPECTED OF PLAYING A ROLE IN
THE CRASH OF THE ETHIOPIAN JET
LAST SUNDAY.
LAST SUNDAY. WE SAY SUSPECTED SINCE
INVESTIGATORS SO FAR HAVE FOUND
THE KNOWN FLIGHT PROFILE, NOW A
PIECE OF PHYSICAL WRECKAGE ARE
BELIEVED SIMILAR TO WHAT IS
KNOWN FROM THE INDONESIAN CRASH
OF THE SAME JET LAST OCTOBER.
THE INVESTIGATION IS MUCH
FURTHER ALONG.
FURTHER ALONG. McAS IS A SAFETY SYSTEM
DESIGNED TO KEEP THE MAX FROM
PITCHING UP AND STALLING.
BUT THE FAA SAID THAT McAS GETS
BAD DATA FROM A SENSOR, THE
LEADING EDGE OF THE HORIZONTAL
STABILIZER COULD SHIFT UP,
FORCING THE NOSE OF THE PLANE
DOWN.
DOWN.
DOWN. PILOTS, INCLUDING CAPTAIN
MURPHY, SHOW HOW IT COULD HAVE
BEEN CONTROLLED.
BEEN CONTROLLED. >> I WILL TRY TO REGAIN
CONTROL, IF IT'S NOT HAPPENING
AND THE McAS IS STILL TAKING
OVER, I COME DOWN TO THE CUT
INS WHICH IS, THEY GO TO THE OFF
POSITION, I SHOULD BE ABLE TO
MAINTAIN CONTROL IF THE
HORIZONTAL STABILIZER HAS GONE
TO FULL NOSEDOWN POSITION, I
WILL KNOW RIGHT AWAY, THE
CONTROL COLUMN WILL BE
SUPERHEAVY, I WILL ROLLED THE
CONTROL WILL BACK TO THE
POSITION, THIS WILL MOVE THE
HORIZONTAL STABILIZER.
HORIZONTAL STABILIZER. >> Reporter: ALL OF THIS
ASSUMES A TROUBLED McAS SYSTEM
WAS IN PLAY HERE AND THERE WAS
NOT ANOTHER CAUSE.
LET'S TALK ABOUT WHAT
INVESTIGATORS COULD ALSO HEAR
WHEN LISTENING TO THE COCKPIT
VOICE RECORDER.
VOICE RECORDER. THERE WILL BE SOUNDS OTHER THAN
THE PILOTS CONVERSATIONS, THERE
ARE OTHER VOICES, SYNTHETIC
VOICES SUCH AS THE ENHANCED
GROUND PROXIMITY WARNING SYSTEM
THAT WOULD HAVE ALSO BEEN
HEARD, TELLING THE PILOTS THE
COLLISION WITH THE GROUND IS
COMING IF NOTHING CHANGES.
>> TERRAIN, TERRAIN --
>> Reporter: WE ARE HOPING TO
HEAR SOMETHING FROM THE BLACK
BOXES SOON.
BOXES SOON. AGAIN, CONCERNED THE FLIGHT
DATA RECORDER CHIP COULD BE
DAMAGED, INVESTIGATORS MAY NOT
GET AS FULL A PICTURE AS THEY
WERE HOPING FOR ON THAT, NOT
HEARING NEGATIVE ISSUES ABOUT
THE COCKPIT VOICE RECORDER,
WHICH AGAIN, IS MICROPHONES IN
THE CABIN.
THE CABIN. >> YESTERDAY, GLENN, YOU TALKED
ABOUT A TAX GROUPING PART OF
THE EVIDENCE, WE HEAR OF THAT
WORD, WE THINK OF THE ALASKA
PLANE THAT CRASHED OFF THE
COAST OF CALIFORNIA.
>> DECADES AGO.
>> Reporter: TO BE CLEAR, NO
ONE IS SAYING ANYTHING THAT
JACKSCREW IS RESPONSIBLE FOR
THIS CRASH OR THE TRACK
JACKSCREW INVOLVED IN THIS
CRASH, THE JACKSCREW TELLS US
THE POSITION OF A FLIGHT
CONTROL SURFACE, WHICH IS
HORIZONTAL STABILIZER.
HORIZONTAL STABILIZER. BEING IN THAT UPWARD POSITION.
PEOPLE HAVE SORT OF SET, THE
JACKSCREW FAILED HERE, NO,
NEVER SAID THAT.