Last report I saw on the S. Korean jet was that they shut down the wrong motor. That report is being slow rolled just like India is pretending their guy didn’t murder everyone. Saving face is a powerful motivation.

Among the reasons I no longer have a strong desire to fly.

Can reverse thrust be used when landing with only one functioning engine? If not, with nearly full fuel tanks the brakes are going to get damned hot.

But just ONE of them!

In that news video, notice how long they're flying normally. That's how it is done. The engine nacelle contains fire for a very long time, 20 minutes iirc. In this video the left engine probably is developing full thrust despite the fire.

Airline pilots in the US fly this scenario in the sim countless times. The sim is extremely realistic these days, so much so that it is indistinguishable from the real thing.

The airplane flies just fine on one engine. When the fire bell sounds, the non-flying pilot calls out "Engine fire, LEFT engine". The flying pilot then commands "Silence the alarm". During the climb prior to about 1500 feet agl the Captain will command "Continue", which means just keep flying the airplane as normal until established in the final segment, which is at about 1500 agl (depending on airport etc).

Once the checklist is run, that left engine has been shut down and the fire will be extinguished. Maybe 5 minutes has elapsed.

The return to landing is nearly normal, with a little bit of rudder trim adjustment.

The whole thing is calm, quiet, and has been practiced many dozens of times before in the sim. US based airlines and a few premier foreign airlines (e.g. Lufthansa, British Airways) have crews fully capable of making it almost a non-event.

quote:

Originally posted by Pipe Smoker:
Can reverse thrust be used when landing with only one functioning engine? If not, with nearly full fuel tanks the brakes are going to get damned hot.

Reverse thrust can be used upon landing with a single operating engine. Procedures for each airlines will determine if this is allowed or not.

Since typical flight times between LAX and ATL is around 4 hours, it is highly unlikely the fuel tanks were completely filled.

The 767-400 has the capability of jettisoning fuel inflight for emergencies of this nature (should the captain decide this course of action is necessary).

quote:

Originally posted by Fly-Sig:

The airplane flies just fine on one engine. <snip> US based airlines and a few premier foreign airlines (e.g. Lufthansa, British Airways) have crews fully capable of making it almost a non-event.

I had to laugh when I read "The airplane flies just fine on one engine." I got my multi-engine rating somewhere around 1969 in a Piper Apache with 150 hp on each side. At gross weight, if you did everything exactly right, you could keep the sink rate to about 50 fpm.

Examiners always failed the left engine; not only was that the critical one (aerodynamically), but there was only one hydraulic pump and of course that was on the left engine, so on the check ride you not only had the critical engine out, you had to deal with extending the hydraulically activated landing gear, with no engine-driven hydraulic pump. Interesting exercise for single pilot operation with no autopilot, no electric rudder trim (I think I remember the rudder trim being a manual crank, mounted overhead).

quote:

Originally posted by V-Tail:
I had to laugh when I read "The airplane flies just fine on one engine." I got my multi-engine rating somewhere around 1969 in a Piper Apache with 150 hp on each side. At gross weight, if you did everything exactly right, you could keep the sink rate to about 50 fpm.

The EMB-120 Brasilia, a 30 passenger turboprop, in the 2-engine-out section of the Aircraft Flight Manual it says "The flight characteristics of the aircraft are not adversely affected by loss of both engines". Presumably maintaining altitude is not an important flight characteristic in Brazil!

quote:

Originally posted by Fly-Sig:

The EMB-120 Brasilia, a 30 passenger turboprop, in the 2-engine-out section of the Aircraft Flight Manual it says "The flight characteristics of the aircraft are not adversely affected by loss of both engines".

I'd like to see the Flight Manual's charts, graphs, and tables, for climb performance with two engines out.

quote:

Originally posted by V-Tail:...

Bob Hoover used his own flight manual...

quote:

Originally posted by Pipe Smoker:
Can reverse thrust be used when landing with only one functioning engine? If not, with nearly full fuel tanks the brakes are going to get damned hot.

The brakes are designed for a max take off weight, runway length, air density etc. V1 rejected takeoff and the ability of brakes to absorb all brake energy required to stop on runway or "safety" overrun, safely.

Yeah, dammed hot or hotter is expected. I have been around more "hot brakes" and brake fires than campers got marshmallows.

quote:

Originally posted by Pipe Smoker:
Can reverse thrust be used when landing with only one functioning engine? If not, with nearly full fuel tanks the brakes are going to get damned hot.

Yes, though there may be limitations. Sometimes one reverser would be inop and we were allowed to still fly for a few days. That's called "Being MEL'd", which means the FAA and the aircraft manufacturer have agreed to certain equipment being inoperative without grounding the aircraft. e.g. a cargo door position sensor might be inoperative, which would require a pilot visually inspect the door to ensure it is fully closed and latched before flight. Frequently there are maintenance actions required before flight. Repairs must be made within a specified time period.

Generally the one reverser inop limitation would be either no reverse use below a certain speed, or only partial reverse thrust could be applied. But that's normal situations. In an emergency or uncertain situation, use whatever you need.

Back in the way old days, differential reverse thrust was sometimes used when there was a strong crosswind in order to counteract the weathervane effect where the aircraft aerodynamically wants to point into that crosswind after landing.

As the Monkey points out, performance data is calculated assuming no reverse thrust will be available.