Airworthiness Directive 2010-23-23 for Eurocopter Model SA330F, SA330G, and
SA330J, AS332C, AS332L, AS332L1, and AS332L2

AD states that EASA received a report of a rear hinged door on a Model
AS332L1 helicopter opening in flight without loss of the door. Examinations
revealed incorrect positioning of a door catch that resulted in incorrect
locking and uncontrolled opening of the door.

2010-23-23.pdf

AD 2010-22-08

FAA is adopting a new airworthiness directive (AD) for the Eurocopter France
Model AS 350 B, BA, B1, B2, B3, and D, and Model AS355 E, F, F1, F2, and N
helicopters, with certain main rotor servo-controls and tail rotor
servo-controls.

This AD requires replacing all servo-controls that are identified in the
Applicability section of this AD. This AD is prompted by an internal review
conducted by the manufacturer which revealed that some main and tail rotor
servo-controls do not conform to the approved design. The actions specified
by this AD are intended to prevent the distributor slide valve jamming in
its sleeve, leading to reduced controllability of the rotors and subsequent
loss of control of the helicopter.

DATES: Effective November 26, 2010.

Eurocopter AS-350B
Eurocopter AS-350B1
Eurocopter AS-350B2
Eurocopter AS-350B3
Eurocopter AS-350BA
Eurocopter AS-350D
Eurocopter AS355E
Eurocopter AS355F
Eurocopter AS355F1
Eurocopter AS355F2
Eurocopter AS355N

2010-22-08.pdf

AD 2010-20-20 This is only a summary, click link to read full AD

This amendment supersedes an existing airworthiness directive (AD) for the
specified Eurocopter France (Eurocopter) helicopters. That AD requires
repetitively inspecting the main gearbox (MGB) planet gear carrier for a
crack and replacing any MGB that has a cracked planet gear carrier before
further flight. This action requires the same inspections required by the
existing AD, but shortens the initial inspection interval. This AD is
prompted by the discovery of another crack in a MGB planet gear carrier and
additional analysis that indicates that the initial inspection interval must
be shortened. The actions specified by this AD are intended to detect a
crack in the web of the planet gear carrier, which could lead to a MGB
seizure and subsequent loss of control of the helicopter.

DATES: Effective November 12, 2010.

For the Eurocopter models listed below

AS-365N2
AS-365N3
EC 155B
EC155B1
SA-360C Dauphin
SA-365C
SA-365C1
SA-365C2
SA-365N
SA-365N1
SA-366G1

2010-20-20.pdf