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Product Improvement Test, OH-6A Maintenance Platform

3. Description of Materiel. The maintenance platform (figure I , in- 
closure 2) attaches to the jack point on the right side of the aircraft at 
the cargo door. This non-adjustable platform is positioned for direct 
access to areas above the right cargo door and is designed to be stowed 
internally within the aircraft cargo compartment. The surface of the 
platform is coated with an antiskid material to permit use during wet 
weather and to minimize the adverse effects of spilled oil or grease.

5. Test Objective s. To dete rmine: 
a. Weight and dimensions. 
b. Installation requirements. 
c. Functional suitability. 
d. Safety. 
e. Design deficiencies. 

b. Special installation hardware consisted of a bracket which 
attached to the inside right-hand aft cargo door frame (figure 2, inclo— 
sure 2). This bracket and the jack point below the door insure rigidity 
of platform installation. One man-hour, including time required to 
gain access to the work area, was necessary for bracket attachment. 

c. The maintenance platform allowed limited access to the main 
rotor and engine inlet areas. However, perforrnance of maintenance 
tasks in these areas was limited by the inability to adjust platform 
height. 
d. USA BAA R personnel found that the platforrn working area was 
not sufficiently large to permit safe inspections of both the engine in— 
let and main-rotor hub areas. Maintenance personnel standing on the 
platform and attempting to gain access to the engine inlet area had to 
lean sideward at least 30 degrees toward the rear of the aircraft, 
remove one foot from the platform, and maintain balance. 
e. The following design deficiency was found: Present platforrn 
working area and position preclude safe and effective access to both 
the engine inlet and the main-rotor hub areas (paragraphs c and d, 
above). An increase Of platform working area length to 48 inches 
should allow safe access to the engine inlet area and decrease the 
safety hazard associated with the test platforrn.

7. Conclusion. The maintenance platform in its present configuration 
is not suitable for use on the OH-6A. 
8. Recommendation. It is recommended that the design deficiency be 
corrected by increasing the platform working area to allow safe and 
effective access to the engine inlet.