Any 737 pilots here?
Author
Discussion

Krhuangbin

Original Poster:

1,114 posts

156 months

Monday 9th March
quotequote all
VERY specific question if so smile

If crew are performing an autoland on 737 in bad weather/visibilty, and during that procedure/descent it fails (my research suggests there is a fail operational and fail passive ) and then announces that they cannot land at that airport any longer (despite previously informing cabin of auto land and turn off phones) and must divert (announcing the inability to land as technical issues to passengers, (as autoland required for those conditions/crew ability ?) does that mean the reason for the diversion is due to adverse weather, or technical issues?

As I said, very specific hehe

Edited by Krhuangbin on Monday 9th March 14:49

rs4al

954 posts

190 months

Monday 9th March
quotequote all
Have you got the actual RVR at the time of the approach? as a lot of 737's are only cat 3A so need 200m RVR

ttrjs

18 posts

103 months

Monday 9th March
quotequote all
Depends if the “technical issue “ is with the aircraft equipment or the ground equipment ( runway lights, ILS transmitter, RVR transmissometer etc ). More detail needed. Also, most 737 operate to max Cat 3A.

More info needed!

Krhuangbin

Original Poster:

1,114 posts

156 months

Monday 9th March
quotequote all
Thanks both - not sure on either . I was a passenger and just wondered what could have happened that resulted in a diversion being made, after autoland was informed as being performed to the passengers ( “turn off phones”) approach was started ( “cabin crew 10 mins to landing”) .. then a last minute diversion (not go around/abort) which was explained as being required due to a technical issue with autoland which was described as mandatory for these conditions by the captain, to an airport with better weather

Edited by Krhuangbin on Monday 9th March 19:02

Krhuangbin

Original Poster:

1,114 posts

156 months

Monday 9th March
quotequote all
I d add that airline engineers attended the flight deck after we landed, and much sheepish discussion was had between them, pilots and cabin crew while we waited over an hour to disembark hehe

Bezerk

473 posts

184 months

Monday 9th March
quotequote all
Technical Issues.

Ive got 1 hour on a 737 Sim.

Glosphil

4,818 posts

259 months

Monday 9th March
quotequote all
Bezerk said:
Technical Issues.

Ive got 1 hour on a 737 Sim.
Damn, you're more qualified tham me. I could only afford 45 minutes on a 737 simulator. 3 take-offs & landings & one go-around.

Muddle238

4,404 posts

138 months

Tuesday 10th March
quotequote all
To conduct a CAT 3a approach you require certain things to be servicable, this includes equipment both on the aircraft and equipment on the ground.

Without knowing exactly what equipment failure occurred, you can't determine the cause of the divert.

However if you ended up diverting somewhere and didn't need to endure an autoland on the B737, count yourself lucky. I absolutely hate doing them, IMO the autoland capability is incredibly basic in the 737.

Chuck328

1,631 posts

192 months

Tuesday 10th March
quotequote all
I'd keep it simple. Forget about low viz mins etc You're question asked was the divert due to technical or weather?

Whilst not knowing the all facts, I'd argue that the divert was down to aircraft technical. There was obviously something wrong with it and that's rendered it unable to land at destination.
The weather was likely crap but a serviceable aircraft would have made the landing. Your one couldn't so went else where.

That's my take anyways.


5150

738 posts

280 months

Tuesday 10th March
quotequote all
You've said yourself the crew announced the diversion was due to technical reasons??

Krhuangbin said:
I d add that airline engineers attended the flight deck after we landed, and much sheepish discussion was had between them, pilots and cabin crew while we waited over an hour to disembark hehe
Engineers always attend an aircraft on arrival. Sometimes they're not engineers, just ground staff wearing high-viz jackets.

Not enough information as to the weather at the destination and the capability of the aircraft.

rs4al

954 posts

190 months

Tuesday 10th March
quotequote all
Good luck in proving it if you are looking for compensation, airline will just come back at you with weather below operating limits.