Go Back  PPRuNe Forums > Aircrew Forums > Rotorheads
Reload this Page >

Japanese AH-64 crash in Kanzaki, 5/2/2018

Wikiposts
Search
Rotorheads A haven for helicopter professionals to discuss the things that affect them

Japanese AH-64 crash in Kanzaki, 5/2/2018

Thread Tools
 
Search this Thread
 
Old 8th Feb 2018, 08:30
  #21 (permalink)  
 
Join Date: Aug 2000
Location: UK
Posts: 3,680
Likes: 0
Received 1 Like on 1 Post
Wouldn't want to be the engineer who fitted it, nor the chief who signed it off, nor the company who owns the business.

Japs don't take kindly to failure of any sort....

What a dreadful way to go.......RiP guys.
Thomas coupling is offline  
Old 9th Feb 2018, 01:33
  #22 (permalink)  
 
Join Date: Mar 2006
Location: Bahamas
Posts: 110
Likes: 0
Received 0 Likes on 0 Posts
Japanese, Thomas.....Japanese......
Delta Torque is offline  
Old 9th Feb 2018, 05:49
  #23 (permalink)  
 
Join Date: Nov 2011
Location: Japan
Posts: 1,944
Received 143 Likes on 86 Posts
Let's hope no-one takes the Happy Despatch. Sad enough already.
jolihokistix is offline  
Old 9th Feb 2018, 11:35
  #24 (permalink)  
 
Join Date: Aug 2000
Location: UK
Posts: 3,680
Likes: 0
Received 1 Like on 1 Post
Or is it Nipponese?
Thomas coupling is offline  
Old 9th Feb 2018, 13:34
  #25 (permalink)  
 
Join Date: Mar 2005
Location: N/A
Posts: 5,926
Received 391 Likes on 206 Posts
Maintenance make errors, just like pilots, after all we're all human. Our operation had an aircraft assigned as the night standby every night for response to any emergency off shore. The aircraft was prepped so all a call out crew had to do was pull the bungs and go. Called out early one morning for a medevac off shore, fired up the night standby and got airborne. Bit of a vertical but completed the 45 minute flight and told maintenance it could do with some tracking upon return. A look found powder coating all four elastomerics at the blade grips. Had had a head build up installed minus all four spindle bearings. Surely the vertical would have been evident during the post install track, or was a track not done, or a test flight?
megan is offline  
Old 14th Feb 2018, 10:02
  #26 (permalink)  
 
Join Date: Nov 2011
Location: Japan
Posts: 1,944
Received 143 Likes on 86 Posts
Reports coming through the main media today that the rotorhead was not new as had been announced but was in fact a used one with 845 hours on it that had been sent back to the US manufacturer in 2011 for refurbishment.
In Japanese, but English translations should be appearing very shortly.
Pic.
https://headlines.yahoo.co.jp/hl?a=2...-soci.view-000
Article.
https://headlines.yahoo.co.jp/hl?a=2...00075-mai-soci
jolihokistix is offline  
Old 14th Feb 2018, 13:45
  #27 (permalink)  
 
Join Date: Aug 2009
Location: Texas
Age: 64
Posts: 7,188
Received 382 Likes on 236 Posts
A lot can happen in 6 or 7 years time ...
Lonewolf_50 is offline  
Old 15th Feb 2018, 03:26
  #28 (permalink)  
 
Join Date: Nov 2011
Location: Japan
Posts: 1,944
Received 143 Likes on 86 Posts
More detail in English here:
Used rotor head installed before GSDF copter crashed in Saga?The Asahi Shimbun
jolihokistix is offline  
Old 15th Feb 2018, 05:33
  #29 (permalink)  
 
Join Date: Oct 2016
Location: NW
Posts: 142
Received 3 Likes on 3 Posts
never takes these mass media seriously when it comes to very specific topics like for example this case, aircraft maintenance. What is new, what is old? A TSN 0 part is new, A TSO 0 part is new/old? A part that has no SLL overhaul with TSN 0 SLL component to form a TSO 0 assy is new or old?
Mee3 is offline  
Old 16th Feb 2018, 00:15
  #30 (permalink)  
 
Join Date: Nov 2011
Location: Japan
Posts: 1,944
Received 143 Likes on 86 Posts
Point taken, but sometimes any news is better than silence, so please do not shoot the messenger. Take everything with a pinch/grain of salt, I reckon!
jolihokistix is offline  
Old 21st Feb 2018, 00:18
  #31 (permalink)  
 
Join Date: Feb 2017
Location: Republic of Texas
Posts: 125
Received 6 Likes on 5 Posts
Originally Posted by jolihokistix
Confirming that two of the blades left in flight as I suspected. What's interesting, is that 'still attached to part of the main rotor asm'. Will be interesting to find out what part of the main rotor asm was still attached to the blades.

According to this, the rotor head was refurbished(?) by Subaru, more than likely in Japan, and I doubt it went to Boeing for work or cert.
ethicalconundrum is offline  
Old 21st Feb 2018, 02:44
  #32 (permalink)  
 
Join Date: Apr 2010
Location: Kansas
Age: 37
Posts: 99
Likes: 0
Received 1 Like on 1 Post
When a strap pack fails, it will allow the blade grip and all associated hardware to depart with the blade. That unbalance can result in the opposing blade failing as well. Strap packs should be a zero defect part. But many pilots are ok with broken straps. When i say broken straps I'm referring to the individual sheets of metal that make up a strap pack.
army_av8r is offline  
Old 21st Feb 2018, 03:56
  #33 (permalink)  
 
Join Date: Nov 2015
Location: australia
Posts: 45
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by jolihokistix
Reports coming through the main media today that the rotorhead was not new as had been announced but was in fact a used one with 845 hours on it that had been sent back to the US manufacturer in 2011 for refurbishment.
In Japanese, but English translations should be appearing very shortly.
Pic.
https://headlines.yahoo.co.jp/hl?a=2...-soci.view-000
Article.
https://headlines.yahoo.co.jp/hl?a=2...00075-mai-soci
If you go to the very bottom of the pages there is a English button
A681001 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.