EASB - Eurocopter

EASB
c) For:
- EC225 / EC725 helicopters not equipped with a Vibration Health Monitoring system (VHM)
developed by EUROCOPTER (M’ARMS) and
- AS332 / AS532 helicopters, regardless of whether or not they are equipped with a EUROCOPTER
VHM system
On receipt of Revision 2 of this Emergency ALERT SERVICE BULLETIN, issued on the date indicated
at the bottom of the page, comply with the instructions below.
- It is prohibited to perform operations which do not enable an emergency landing on the ground
within 10 minutes at Vy, unless an Eddy current inspection of the bevel gear is performed.
- Remove, if installed before, all previous placards defined in Revision 0 and Revision 1 of this ALERT
SERVICE BULLETIN.
- Install placard " OPERATIONS WHICH DO NOT ENABLE EMERGENCY LANDING ON THE
GROUND WITHIN 10 MINUTES AT Vy ARE PROHIBITED "
. The placard will be locally manufactured in accordance with the indications of Figure 1.
In case it is necessary to perform flights over such areas:
- Before the next flight, perform an Eddy current check of the component, in the area of the weld, to
make sure that there is no crack according to paragraph 3.B.2.
- Flights are limited to 10 flying hours maximum since the last Eddy current check.
- Remove during this period the placard " OPERATIONS WHICH DO NOT ENABLE EMERGENCY
LANDING ON THE GROUND WITHIN 10 MINUTES AT Vy ARE PROHIBITED "
- For EC225/EC725 helicopters only,
. Reduce the Maximum Continuous Power (MCP) by 15% during level flights with a speed above 60 kts
(IAS ≥ 60 kts) as per paragraph 3.B.1,.
. Install the placard by the following one “Maximum continuous torque limited to 70% during level
flights at IAS≥ 60 kts” in the full view of the pilots.
- The placard will be locally manufactured in accordance with the indications of Figure 1
Non-installed equipment:
Not applicable.
CAUTION
ONLY LEVEL II AND LEVEL III OPERATORS CERTIFIED IN
THE EDDY CURRENT DETECTION METHOD IN THE
AERONAUTICS SECTOR ACCORDING TO THE EN4179 OR
NAS410 STANDARD ARE AUTHORIZED TO CARRY OUT
THE INSPECTION.
MOREOVER, EACH OPERATOR HAS TO ATTEND AN
ADDITIONAL TRAINING PERFORMED UNDER
EUROCOPTER RESPONSIBILITY. THIS TRAINING WILL
INCLUDE PRACTICING ON DEFECTS GENERATED ON
REAL VERTICAL SHAFT AND ON REPRESENTATIVE
COUPONS.
Revision 0 2012-06-27 Page 8/15
Revision 2 2012-11-21 This document is available on the internet: www.eurocopter.com/techpub