Eagle ICA-D212-725, Инструкция по эксплуатации

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ICA-D212-725 (67)
Page 51 of 55
CHAPTER 67 – FLIGHT CONTROLS (67-00-00)

COPYRIGHT

2007 BY DART AEROSPACE LTD.

THIS DOCUMENT IS PRIVATE AND CONFIDENTIAL AND IS SUPPLIED ON THE EXPRESS CONDITION THAT IT IS NOT TO BE USED FOR ANY PURPOSE OR COPIED OR COMMUNICATED TO
ANY OTHER PERSON WITHOUT WRITTEN PERMISSION FROM DART AEROSPACE LTD.
Revision:
6
Date: 13.08.26
accordance with following steps 67.5.2.2.3 and
67.5.2.2.4.
67.5.2.2.3
Inspect elevator for loose rivets,
damage, dents, cracks, and worn spar tube
(Figure 67-19).
67.5.2.2.4
Inspect support retainer set (7,
Figure 67-18) for damage, wear, and looseness
(BHT-212-CR&O).
67.5.2.2.5
Inspect horn (5) for damage,
dents, cracks, and excessive wear (BHT-212-
CR&O).
NOTE
Inboard rib may be modified in accordance
with T.B. 212-83-76 to reduce the
possibility of cracking.
67.5.2.2.6
Inspect inboard rib for cracks.
Small crack in web may be stop drilled if crack
does not extend into radius of rib flange. If crack
extends into rib flange, replace rib.
67.5.2.2.7
Replace tip cap (11, Figure 67-18)
if loose or missing as follows:
67.5.2.2.7.1 Clean elevator tip area with
aiphatic naphtha (C-305).
67.5.2.2.7.2
Inspect new cap assembly (11) to
ensure freedom from oil, grease, dirt, or other
contaminants. If necessary, clean cap with toluene
(C-306).
67.5.2.2.7.3
Brush a thin coat of adhesive (C-
300) (approximately 0.010 in. (0.254 mm) thick) on
elevator tip (cleaned area) and inside of cap.
67.5.2.2.7.4 Allow approximately one hour
drying time until adhesive attains an aggressive
tack. Install cap on elevator tip.
67.5.2.2.7.5
Retain cap in place at least 15
seconds.
67.5.2.2.7.6 Allow
a minimum of 24 hours
drying time before releasing helicopter for flight.
68.5.2.2.8 For structural repair of elevator,
refer to FAA Aircraft Inspection and Repair
Manual AC 43.13-1 A.
67.5.2.2.9
The following procedure is to be
used when replacing elevator horn:
CAUTION
HORN MUST BE MACHINED IN
ACCORDANCE WITH FIGURE 67-20.
FAILURE TO COMPLY WILL RESULT IN LOSS
OF INTERCHANGEABILITY WITH FUTURE
SPARE PARTS.
67.5.2.2.9.1
Drill 0.375 to 0.376 inch (9.53 to
9.55 mm) diameter hole through both walls of
elevator horn. Hole to be 6.750 inches (171.45
mm) inboard of center of elevator attach bolt
hole and through center of horn parallel to face
of adjacent elevator attach lug (Figure 67-20).
Repeat procedure on opposite end of horn.
Deburr holes.
67.5.2.2.9.2 Assemble synchronized
elevators to horn and secure in place with bolt
(2, Figure 67-18).
67.5.2.2.9.3
Push bushing, P/N 20-006-16-
32-32 (or similar drill bushing) into one of four
holes in elevator horn wall.
NOTE
Bushing should be light push fit in horn. If fit is
too tight, polish outside diameter of bushing
down until light push fit is obtained.
67.5.2.2.9.4
Drill 0.246 to 0.250 inch (6.25 to
6.35 mm) diameter hole through spar wall using
size “D” drill.
67.5.2.2.9.5 Repeat
steps 67.5.2.2.9.3 and
67.5.2.2.9.4 for remaining three elevator horn
hole locations.
67.5.2.2.9.6 Disassemble elevators from
horn.
67.5.2.2.9.7
Drill holes in elevator spars