All model BN2, BN2A, BN2B, BN2T, BN2T-4R and BN2T-4S Islander
Requirement: 1. Perform the inspection
procedure and the leak test procedure as detailed in, Section 6
Action, of B-N Service Bulletin 310 Issue 1 dated 10 October 2005
or later revision approved by the United Kingdom Civil Aviation
2. Perform a check of the drain traps for moisture.
Note: CAA(UK) AD G-2005-0034 (EASA Approval
Compliance: For Requirement 1 - Prior to 1
February 2005 and thereafter at intervals not exceeding 500 hours
time in service (TIS).
For Requirement 2 - Initially within 500 hours TIS after the
Requirement 1 inspection and thereafter at intervals not exceeding
500 hours TIS.
This Airworthiness Directive becomes effective on 23 December
Incidences have been reported to B-N Group where cracks have been
found in the inner shell of the pitot/static pressure heads. This
could result in incorrect readings on the pressure instrumentation
(e.g. altimeters, vertical speed indicators (rate-of climb) and
airspeed indicators). This condition has been determined to be