TM 1-1520-265-23
Figure 4-9. Pilot/Copilot Seat Midframe Support
4.9.3.7
Marking and Recording of Inspection Results. Mark and record inspection results as required by paragraph
1.3.
4.9.3.8
Demagnetization. With the switch remaining in the AC position, place the probe/yoke legs in the same position
used for magnetizing. Press the test switch and withdraw the probe/yoke from the part for a distance of two feet before
releasing the switch.
4.9.4
Backup Method. None required.
4.9.5
System Securing. Clean the midframe support thoroughly to remove all residual magnetic particle media.
Refer to Post Cleaning and Restoration of Part or Area After NDI, paragraph 1.4.16. The midframe support, if removed,
requires installation in accordance with the applicable technical manuals listed in Table 1-1.
4.10
TROOP/CARGO DOOR UPPER TRACK (ET).
4.10.1
Description (Figure 4-1. Index No.10). These rear sliding doors on either side of the helicopter cabin open to
the troop/cargo compartment. This inspection applies to the upper track on which the doors slide.
4.10.2
Defects. This inspection is used to verify crack indications found visually on the cargo door upper track. No
cracks are allowed.
4.10.3
Primary Method. Eddy Current.
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