Coin Tap Inspection - Cessna 510 Mustang Structural Repair Manual

1. General
A. This procedure defines the method required to check for delamination of composite structures using the coin tap method.
2. Inspection
A.

Coin Tap Inspection.

(1) Establish a grid on each surface 1.5 inches by 1.5 inches (38.1 mm by 38.1 mm) using an erasable marker.
NOTE:
(2) Tap the composite panel with a coin at each grid point.
(3) Possible delamination damage should be indicated by a distinct change in coin tap sound.
(4) If delamination damage is detected, map the damage area by tapping at lesser intervals.
Copyright © Textron Aviation Inc.
Retain printed data for historical reference only. For future maintenance, use only current data.
COIN TAP INSPECTION
Certain structures may require a smaller grid. Instructions in a procedure take precedence.
FOR TRAINING PURPOSES ONLY
ISSUE 02 , JAN 2018
Model 510 Structural Repair Manual (Rev 2)
51-71-01-2 (Original Issue)
Print Date: Wed Mar 21 05:12:25 CDT 2018
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