Technical Procedures/Instructions-continued

TB 1-1520-240-20-154

(1) Utilizing Figure 1, cut out the "re--marked" Cruise Guide Indicator template.

(2) Cut out the red/yellow striped (avoid) band from the Figure 1 "re--marked" CGI template.

(3) Center the "re--marked" template on the aircraft CGI (P/N 152BUA34-2 or 114VS805-3).

(4) Tape the outside edges of the "remarked" template to the CGI.

(5) Apply red instrument marking tape tot he CGI display glass at the location where the red/yel-

low striped band was removed from the Figure 1 template. If instrument tape is unavailable then a piece of

red tape placed on the glass at the beginning of the new red/yellow striped region denoted by the "re-marked"

template is sufficient.

(6) Remove the "re-marked" template and outside edge tape to detach the template from the CGI

display.

(7) To ensure the CGI glass is always positioned correctly, a torque stripe (also known as slip-

page mark) shall be applied extending from the outer edge of the display glass to the edge of the instrument.

NOTE

Measuring with a protractor placed in the center of the gauge, the red

band of the new avoid region begins at 63 degrees above horizontal. The

red band arc length of the new avoid region is 1 7/16". The new yellow

band arc is 5/16" long.

NOTE

The yellow band on the re--marked CGI represents 100% to 120% rotor

control/drive system design load. The red (avoid) band on the re-marked

CGI begins at 120%.

d. If environmental conditions and/or mission requirements result in flight operations with the CGI reg-

istering continously (greater than 45 seconds) in the newly re-marked yellow (transient) band, the flight crews

shall take action to return to operations in the green (normal) band of the CGI. No forms entries need be made.

e. If environmental conditions and/or mission requirements result in flight operations with the CGI reg-

istering continously (greater than 45 seconds) in the newly re-marked red (avoid) band, the flight crews shall

take action to return to operations in the green band of the CGI.

(1) Flight crews shall record the estimated time, airspeed, pressure altitude, temperature, gross

weight, and approximatel needle position in the upper or lower half of the avoid region on DA Form 2408-13-1.

This information shall be provided in accordance with para 5. a. (2) as soon as possible to the technical point

of contact in paragraph 13 to determine maintenance action impact on a case by case basis.

(2) Upon mission completion, enter a circle red //X// status symbol on the DA Form 2408-13-1

with the following statement: "operate aircraft in accordance with paragraph 7.4.2 of CH-47-04-ASAM-2." Air-

craft restricted to operations within the inoperative Cruise Guide Indicator envelope in accordance with TM

1-1520-240-10, paragraphs 5-2-5, 5-5-2, 5-5-3, 5-6-2, 7A-1-2, and 7A-1-3.

NOTE

The visual inspection of the Aft Fixed Link Rod Ends (P/Ns 414C3056-3

and 114CS123-1) may be accomplished while the components are

installed on the aircraft.

WARNING

If visual inspections are to be performed on aircraft, ensure no FOD

enters the rotor head assembly.

f. Parts Inspection -- for all CH-47D aircraft, visually examine the installed Aft instrumented link rod

ends (P/N 114CS123-1), for bending/distortion, cracks, and other obvious defects. Visually examine external