Access. Not applicable.
Use only appropriate platforms, workstands, or other approved locally procured
stands and restraint equipment when working above 10 feet on helicopter in a
nontactical environment. Otherwise, personnel injury could result from accidental
Preparation of Part. The components shall be thoroughly cleaned. Refer to Preparation of Part or Area for
NDI, paragraph 1.4.4.
NDI Equipment Settings. Refer to Bond Test Equipment, paragraph 220.127.116.11.
Attach cable and probe to Bondmaster. Protect probe with Teflon tape and install in probe holder.
Turn on Bondmaster, press SPCL, and make the following adjustments:
Press SET and select DISPLAY - PHASE.
Place probe on the good area of test blocks and press GOOD PART. Do this several times while moving the
probe to different spots in the good area of the standard. Note the video signature for each. Select and enter
a representative good area by pressing GOOD PART one last time.
Place probe on void area of test block and press BAD PART. Do this several times while moving the probe
slightly to different positions within the void area. Select and enter a position that gives a strong difference
between good and void areas. Use DIFF soft key to observe difference between good and bad areas of test
If, during setup, the flying spot deflects upward or to the side when the probe
passes over the bad part instead of the desired down deflection toward the alarm
box, press SPCL and toggle to a different phase setting (90, 180, or 270), and
repeat steps d. and e. Continue to try phase setting until the flying spot moves in
the desired down direction.
Place probe on good area of test block and press RUN. Flying spot should be near the top-center of the
ACTIVE screen. If not, press NULL. Slide probe from good to void area and note response from flying spot.
This response should provide both amplitude (vertical) and phase (horizontal) movement. The default
gate/alarm setting may be incorrect for this setup. Turn off or reset gate/alarm as desired.
The Bondmaster is programmed to automatically set test parameters to a start-up or initial bond test. By
following the steps outlined above, adjustments to the FREQ, GAIN, and ALARM can help to refine the
selectivity in locating defects among differing composite materials.