LIFTING CONDITION AND LIFTING METHOD
CONDITION: METHOD (MLG Beam not damaged)
MLG Trunnion and Trunnion interfaces not damaged. 1. Use sling or straps to lift from MLG Trunnion and MLG Beam Interface. OR, 2. Use sling or straps to lift from MLG Trunnion.
MLG Sheared or Partially Sheared Use sling or straps to lift from MLG Beam (OBTAIN APPROVAL FROM THE BOEING COMPANY)
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757
AIRPLANE RECOVERY DOCUMENT
Figure 3-59 SLING ASSEMBLY
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AIRPLANE RECOVERY DOCUMENT
Figure 3-60 LIFTING THE NOSE WITH A SLING
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3-30-14 Supports (Cradles/Cribs)
1. General
A. It may be necessary to use supports (cradles/cribs) at set locations below the airplane during a recovery operation.
B. You can use wood beams or sheets, sand bags, pads, rubber tires and other soft materials for these supports.
C. We show the important qualities that you must have for good supports (cradles/cribs) below:
(1)
Make a surface area below the supports that has a sufficient strength to hold them.
(2)
Make the supports vertical or almost vertical.
(3)
Make sure that the support materials can hold the applied airplane loads.
(4)
Make sure that the interfaces between the supports and the airplane components are correct.
(5)
Make sure that the support installations are below the correct locations on the airplane.
D.
We show the necessary supports (cradles/cribs) for the jacks and the pneumatic bags in SUBJECT 3-30-5.
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本文鏈接地址：757 Airplane Recovery Document 飛機恢復文件(93)
