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Reaction ARF Airworthiness Directive #4

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Reaction ARF Airworthiness Directive #4

Old 07-21-2010, 09:53 AM
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Default Reaction ARF Airworthiness Directive #4

Subject: Reaction ARF Airworthiness Directive #4

Attention all Reaction ARF and Reaction X Owners,

Most of you have probably seen the thread on RCU about a wing failure,
probably caused by the leading edge seam opening up. As a precaution,
PST has issued another Airworthiness Directive which basically makes it
mandatory to add tape to the wing leading edges (if you haven't done it
already). Here is the new AD from PST Jets:


Airworthiness Directive #3 - Issued June 2009
CANCELLED - Replaced with AD #4

Airworthiness Directive #4 - Issued July 2010
Replaces AD #3

Two customer-flown Reaction ARFs have exhibited a wing leading edge
split resulting in crashes. The first jet was flown for more than 35
flights with 16kgs thrust turbine. The second one was moderately
powered (P80) and had only five flights. The wings on these models may
not have been bonded properly at the leading edge seam. As a
precaution, all owners of the Reaction ARF are required to inspect the
wing leading edge bonding and perform the following:

1. If a weak spot or splitting is found, seal the leading edge with
Hysol or similar epoxy.

2. Place 1.5" (40mm) wide tape or stickers along the wing leading edge.
Vinyl decal material, aluminum tape, or heavy-duty clear packing tape is

The above procedures are now considered mandatory will prevent leading
edge from splitting in flight.

Thank you for your attention and regards,

PST Jets Thailand

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