CHAPTER 11 FLIGHT CONTROLS SYSTEM

Figure 10-4. Fuel Tubing Elbow Repair (One Time Flight)

Figure 11-1. Flight Controls Assessment Logic

TM-1-1520-240-BD Army CH-47D Heilcopter (NSN 1520-01-088-3869) (EIC:RCD) Manual
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TM 1-1520-240-BD CHAPTER 11 FLIGHT CONTROLS SYSTEM SECTION I. GENERAL 11-1. INTRODUCTION . This chapter provides methods for assessing battle damage, deferring damage, and repairing flight control systems. The primary emphasis is on providing the assessor with the proper guidance to perform the assessment process. Simplified logic trees and related illustrations will also aid the assessor. SECTION II. DAMAGE ASSESSMENT 11-2. DAMAGE ASSESSMENT PROCEDURE. When combat damage is sustained, the pilot will be debriefed to determine the presence of any abnormal behavior in the flight control systems. This will aid in determining the extent of damage. All cables, tumbuckles, fair- leads, pulleys, bellcranks, and pushrods in the entire damaged area will be inspected and the damage evaluated before beginning repairs. See Figure 11-1 for assessment logic. SECTION III. BATTLE-DAMAGE REPAIRS 11-3. DEFERMENT. Scheduled maintenance may be deferred. Unscheduled maintenance, such as the repair of systems and subsystems which are not critical to mission accomplishment, may be deferred if safety of flight is not significantly degraded. 11-4. CONTROL RODS. RefertoTM55-1520-240-23. 11-1

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