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Configuration for removal/installation 4 engines


Mariola
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What airplane configuration is correct for removal/installation all 4 engines from aircraft without add gross weight for airplane balance?
 
What is better structure load configuration for airplane:
1. if airplane weight is on full belly shoring and supported by jacks (Nose jacks on FS 165 , main jacks WS 220 and stabilizer cradle  jacks)  -no-load condition
2. if airplane weight is on jacks (NLG on FS165, main jacks on WS 220, horizontal stabilizer) and supported by belly shoring (airplane weight isn’t on shoring but only for balance)?
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Might want to rethink using the milk stool for supporting the aircraft for all four engine removal as the milk stool is used to support the ramp for cargo loading, not for maintenance. There is a pad to the left of the tail skid that is meant to be used to place a specific made jack stand to support the aircraft during engine removal. Don't remember the T.O. that references this but it's there. 

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On 4/23/2018 at 2:53 AM, Spectre623 said:

Might want to rethink using the milk stool for supporting the aircraft for all four engine removal as the milk stool is used to support the ramp for cargo loading, not for maintenance. There is a pad to the left of the tail skid that is meant to be used to place a specific made jack stand to support the aircraft during engine removal. Don't remember the T.O. that references this but it's there. 

Yes u r right this not use for engine removal & not required any support for engine removal / installation when airctaft already on crafles and jacks. 

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