737 NG engine wash

737 NG engine wash procedure from SAS.
From:
http://www.gtefficiency.com/gtefficiency/home.jsp

Category:

Autos & Vehicles

Tags:

• 737
• engine
• wash
• CFM56-7

[widdy82]

yeay! i got a reply. :D

hmm... good point. yeah, the N1 turbine section will not be washed properly.

Another way is actually to hook up a tool (a hose with a hook-shaped outlet basically) behind the fan, like how V2500 on an A320 being washed would be a good (and i think simpler) idea as well. So it will direct the flow right into the core with both N1 and N2 still rotating.

but then i dunno... must read the AMM again. haha..

[737maint]

Yep youre right we dont do it like this video. We hook up 2 spray nozzles from behind the rotor, and then inject it directly into the core. N1 and N2 rotate, all gets clean The only thing we have to do more than this video is to open up the trhrust reversers to install these injector-tools.

[widdy82]

hmm... i thought by keeping the N1 not rotating and aiming the hose to the inner core would work as well?

i mean, engine starter turns the N2 right? so if we can prevent the fan section from turning, we can actually eliminates the problem of water going into the bypass section. while the core section still suck-up the water... or wrong?

[737maint]

Yep you are right its a possibility. If you hold N1 you also hold the LPT so the flow is much less inside the engine. Its better to have a good flow inside the engine to process all this water to the rear. Altough its a nice idea, washing like we now do is in accordance with the manuals, and a different procedure must be authorized by the companies engineerin dept and CFMI. Thanks for your comment.

Regards

737maint

[clinkercontrol]

i think i`ll go clean my cfm-56 right now !

[rcfreak632]

this video is like a tutorial like im about to go clean jet engine in my backyard and go clean it. better make sure i set mine back up for flight mode and not blow air or nitrogen back into my ps3

[HackerzInHD]

this is a very old procedure...there should be a newer, faster, easier way of doing this now..

[thepricylon]

I have just one thing to say about it! "L.O.L"

[Cyramor11]

Why is he telling us this like we are going to be doing it in 5 min.? lol

[HansensUniverse]

@zeroaviation hehe whas thinking pretty much the same thing

[Contratrombone64]

Fascinating, really enjoyed it.

[widdy82]

heheh... opening the T/R cowl is not such a big extra job right? :P anyway we gotta open the fan cowl to disconnect the PS3 and P25 and cowl anti-ice sense line (in CFM56-5B we gotta do that... not sure on 737).