Pilatus PC-12/47E MSN-1001-UP, Руководство по обслуживанию

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− The replacement of the shoot bolts.
2 Measurement of the Hand Force Necessary to Close the Passenger/
Crew Door
2.1 Lift the passenger/crew door Figure 1 [1] until almost closed.
2.2 Push the door Figure 1 [1] against the seal by pushing on the skin.
2.3 Lift the end of the door handle Figure 1 [2], attach the spring balance to the bottom end of the door
handle Figure 1 [2].
2.4 Pull the Spring balance (Pt.No. T23-010) counter clockwise in a slow smooth motion to close the door
Figure 1 [1]. Make sure the spring balance is kept at an angle of 90° to the door handle.
2.5 Record the hand force necessary to close the door Figure 1 [1]. The forces are classed as follows:
− High if more than 115 N (25.85 lbf )
− Satisfactory if between 85 and 115 N (19.12 and 25.85 lbf )
− Low if less than 85 N (19.12 lbf).
Note
For aircraft that are less than 3 years old, the hand force will be higher. A hand force of up to 150
N (33.72 lbf ) must be accepted as satisfactory. This is because it takes time for the door seal to
sufficiently compress to its correct shape.
Note
A low door force can be accepted with a serviceable pressurization system. If the pressurization system
becomes unserviceable, examine the door seal and replace as necessary.
2.6 If the hand force necessary to close the door Figure 1 [1] is high, the checks and replacement
procedures that follow can be done to decrease the hand force.
3 Checks to Find the Cause of High Hand Force
3.1 Causes for High Hand Force
There are three conditions which will give a high hand force:
− The shoot bolt does not engage easily because it is touching on the outboard side of the striker
plate (Ref. Figure 1 [5])
− The shoot bolt does not engage easily because it is touching on the inboard side of the striker
plate (Ref. Figure 1 [5])
− The loads on the shoot bolts, specially the lower, are not equal.
3.2 Examine the door frame Figure 1 [1] and the structure around the door entrance Figure 1 [3], if
damage is found write to Pilatus.
3.3 With the passenger/crew door Figure 1 [1] in the open position turn the inner door handle Figure 1 [4]
to the closed position.
3.4 Identify the type of shoot bolt Figure 1 [7] installed, measure the distance from the center of the shoot
bolt to the start of the chamfer. If the distance is 2 mm (0.08 in) new shoot bolts are installed. If the
distance is 3,4 mm (0.13 in) old shoot bolts are installed.
3.5 Replace old shoot bolts (Ref. Figure 1 [7]).
3.6 Measure the length Figure 1 [8] from the end of the shoot bolts Figure 1 [7] to the door Figure 1 [1]
frame (do not measure to the bush around the shoot bolt). The measurements must be between the
limits in Table 6.
PC-12/47E AMM Doc No 02300, ISSUE 01 REVISION 26 MSN 545, 1001-1719,
1721-1999
12-B-AM-00-00-00-I
UNCLASSIFIED
Effectivity: All 12-B-52-10-00-00A-903A-A
UNCLASSIFIED 2021-12-04 Page 3