Reverser Light Leads to Engine Shutdown

[co-joe]

What happens in an essentially centreline thrust aircraft when you shut down an engine at cruise speed? You slow down a bit?

What happens if you have the buckets deploy at cruise power?

Sounds like they weren't sure and played it safe. I'd call that a win.

[telex]

What happens in an essentially centreline thrust aircraft when you shut down an engine at cruise speed? You slow down a bit?

What happens if you have the buckets deploy at cruise power?

Sounds like they weren't sure and played it safe. I'd call that a win.

Wrong. There is a procedure for the situation which was NOT FOLLOWED.

Inventing procedure to "play it safe" is not a win.

[co-joe]

What happens in an essentially centreline thrust aircraft when you shut down an engine at cruise speed? You slow down a bit?

What happens if you have the buckets deploy at cruise power?

Sounds like they weren't sure and played it safe. I'd call that a win.

Wrong. There is a procedure for the situation which was NOT FOLLOWED.

Inventing procedure to "play it safe" is not a win.

It is if you get to go home to your family, and the company gets to re use the aeroplane tomorrow.

[av8ts]

What happens in an essentially centreline thrust aircraft when you shut down an engine at cruise speed? You slow down a bit?

What happens if you have the buckets deploy at cruise power?

Sounds like they weren't sure and played it safe. I'd call that a win.

Wrong. There is a procedure for the situation which was NOT FOLLOWED.

Inventing procedure to "play it safe" is not a win.

It is if you get to go home to your family, and the company gets to re use the aeroplane tomorrow.

So it’s ok to not follow company procedures as long as you don’t crash the aircraft

[telex]

What happens in an essentially centreline thrust aircraft when you shut down an engine at cruise speed? You slow down a bit?

What happens if you have the buckets deploy at cruise power?

Sounds like they weren't sure and played it safe. I'd call that a win.

Wrong. There is a procedure for the situation which was NOT FOLLOWED.

Inventing procedure to "play it safe" is not a win.

It is if you get to go home to your family, and the company gets to re use the aeroplane tomorrow.

Any more advocates for making it up as you go along? This is bizarro world.

The manufacturer publishes guidance for the situation encountered. An engine was inadvertently (and erroneously) shut down.

Why restart the engine if one is "playing it safe"?

You cannot tell me that shutting down an engine that did not need to be shutdown is the correct action.

[av8ts]

On the CRJ 200 you will get an amber REV UNLOCKED message. Procedure is to call for the QRC (quick response checklist)
On the CRJ 900 you will get a red REV DEPLOYED message. Procedure is to call for the QRC.
It is not a memory item to do a shutdown on either aircraft

[mbav8r]

I will answer the technical aspect, as for how the crew ended up shutting it down and then restarted it, I can only speculate like the rest of you.
As for the QRC(Quick reference checklist), both have you confirm the thrust lever and retard it to idle, the 200 has a retard system that actually brings the thrust lever to idle, on the 200 the next step is to select the emergency stow, the 900 FADEC reduces to idle thrust, then both go to the QRH(Quick Reference Handbook).
The 900 QRH is much shorter and is no question, you shut it down.
The 200 QRH, much more in depth, starts with a question of whether or not the thrust reverser has stowed(as indicated by improved handling and normal operation of thrust lever(cable retard system deactivated), if the answer is yes then you shut off the affected thrust reverser and operate the engine normally.
If the answer is no, you shut it down.
I hope they didn’t just shut down an engine without use of the checklist but the cadors description obviously lends to that scenario, however it’s possible they answered no, which lead to a shut down then after re reading the QRH, after the shutdown checklist was complete they realized the note that said the affected emergency stow light and REV UNLOCKED msg will remain on even if the reverser has stowed, meant they probably didn’t need to shut it down and decided to restart it again, I wasn’t there so only trying to imagine how that could’ve happened

[laserstrike]

The pilots did the right thing in shutting the engine down.

You don't want to waste time when presented with a bad reverser.

They then ran the qrh, which directed them to the correct procedure for that aircraft and they continued as they should.

Hardly even worth mentioning really.

What!! They were confused about their memory items and wrongly shut down an engine and your saying that was the right thing to do??

What memory items?

[av8ts]

The pilots did the right thing in shutting the engine down.

You don't want to waste time when presented with a bad reverser.

They then ran the qrh, which directed them to the correct procedure for that aircraft and they continued as they should.

Hardly even worth mentioning really.

What!! They were confused about their memory items and wrongly shut down an engine and your saying that was the right thing to do??

What memory items?

I at first thought this was a memory item

[crj_705]

They do. There are basically no more memory items. They would've pulled up the QRC then moved on to the longer QRH. The difference between the 200 and 900 is that the 200 has a system to more or less restow the reverser if it comes unlocked IRCC. The 900 doesn't.

Just because i don’t know is the QRC the same for both types?
I find it weird a QRC would have you shut it down only to have the model specific QRH let you start it back up or is there. Procedure to be done while it’s shut down that allows you to start the engine back up?

It's been a little while since I flew them but the QRCs were unique to the type. I wish I still had access to the documents to double check.

The procedure for the 200 was pretty basic. I think the thrust lever automatically retarded to idle or needed to be idled, the EMER STOW button illuminated, you hit the button, and ideally you've got a stowed reverser.

CRJ200 QRC

L REV UNLOCKED OR R REV UNLOCKED CAUTION MESSAGE – IN FLIGHT

 Affected THRUST LEVER .................. CONFIRM and IDLE

 Affected REVERSER EMER STOW ..................... SELECT

 Complete QRH EMERGENCY 1-17


QRH EMERGENCY 1-17

L REV UNLOCKED OR R REV UNLOCKED CAUTION MESSAGE – IN FLIGHT

 Affected THRUST LEVER ............................. CONFIRM and IDLE

 Affected THRUST REVERSER EMER STOW ................. SELECT

NOTE:

The affected EMER STOW switchlight and the corresponding L or R REV UNLOCKED caution message will remain on.

Does the affected Thrust Reverser stow (as indicated by improved airplane handling and normal operation of the affected Thrust Lever)?

YES:

 Affected THRUST REVERSER .......................................... …..OFF

 THRUST LEVERS .................................................. As REQUIRED

 Land at the nearest suitable airport.

CAUTION:

If required, the remaining Thrust Reverser can be used carefully upon landing

- END -

NO:

 Airspeed ......................................................... MAXIMUM 200 KIAS

 Affected THRUST REVERSER ............................................. …OFF

 APU (if Available – 30,000 Feet and Below) ........................ START

 APU GEN ................................................................................ …ON

 IN-FLIGHT ENGINE SHUTDOWN ............................ ACCOMPLISH Now

(ABNORMAL 1-1)

[Tail-Chaser]

Just because i don’t know is the QRC the same for both types?
I find it weird a QRC would have you shut it down only to have the model specific QRH let you start it back up or is there. Procedure to be done while it’s shut down that allows you to start the engine back up?

It's been a little while since I flew them but the QRCs were unique to the type. I wish I still had access to the documents to double check.

The procedure for the 200 was pretty basic. I think the thrust lever automatically retarded to idle or needed to be idled, the EMER STOW button illuminated, you hit the button, and ideally you've got a stowed reverser.

CRJ200 QRC

L REV UNLOCKED OR R REV UNLOCKED CAUTION MESSAGE – IN FLIGHT

 Affected THRUST LEVER .................. CONFIRM and IDLE

 Affected REVERSER EMER STOW ..................... SELECT

 Complete QRH EMERGENCY 1-17


QRH EMERGENCY 1-17

L REV UNLOCKED OR R REV UNLOCKED CAUTION MESSAGE – IN FLIGHT

 Affected THRUST LEVER ............................. CONFIRM and IDLE

 Affected THRUST REVERSER EMER STOW ................. SELECT

NOTE:

The affected EMER STOW switchlight and the corresponding L or R REV UNLOCKED caution message will remain on.

Does the affected Thrust Reverser stow (as indicated by improved airplane handling and normal operation of the affected Thrust Lever)?

YES:

 Affected THRUST REVERSER .......................................... …..OFF

 THRUST LEVERS .................................................. As REQUIRED

 Land at the nearest suitable airport.

CAUTION:

If required, the remaining Thrust Reverser can be used carefully upon landing

- END -

NO:

 Airspeed ......................................................... MAXIMUM 200 KIAS

 Affected THRUST REVERSER ............................................. …OFF

 APU (if Available – 30,000 Feet and Below) ........................ START

 APU GEN ................................................................................ …ON

 IN-FLIGHT ENGINE SHUTDOWN ............................ ACCOMPLISH Now

(ABNORMAL 1-1)

Thank ya kindly!