EASA AD No: 2009-0274-E

EASA Form 111 Page 1/2 

## EASA EMERGENCY AIRWORTHINESS DIRECTIVE

AD No.: 2009-0274-E

Date: 18 December 2009

Note: This emergency Airworthiness Directive (AD) i s issued by EASA, acting in accordance with Regulation (EC) No 216/2008 on beha lf of the European Community, its Member States and of the European third countries t hat participate in the activities of EASA under Article 66 of that Regulation.

This AD is issued in accordance with EC 1702/2003, Part 21A.3B. In accordance with EC 2042/2003 Annex I, Part M.A.301, the continuing airworthiness of an aircraft shall b e ensured by accomplishing any applicable ADs. Cons equently, no person may operate an aircraft to which an AD applies, exc ept in accordance with the requirements of that AD unless otherwise specified by the Agency [EC 2042/2003 Annex I, Part M.A.303] or agreed with the Authority of the State of Registry [EC 216/2008, Article 14(4) exemption]. 

### Type Approval Holder’s Name : Agusta S.p.A Type/Model designation(s) :
A109A, A109AII, A109C, A109K2 Helicopters

TCDS Number: EASA R.005

Foreign AD: Not applicable

Supersedure: None



### ATA 62 Main Rotor - Fixing Bolts of the Scissor Fitting As sembly - Inspection/Replacement

Manufacturer(s): Agusta S.p.A

Applicability: A109A, A109AII, A109C, A109K2 helico pters all serial numbers

Reason: A failure of a two bolts p/n 109-0101-78-5 on one A 109K2 helicopter has been reported to Agusta S.p.A.. The investigation c arried out by Agusta S.p.A. has identified that the failure has been ori ginated by the inadequate information reported in the technical publications related to the configuration of the main rotor scissor fitting ins tallation. Failure of these bolts might lead to the loss of control of the heli copter. To prevent this unsafe condition, Agusta S.p.A. has issued two Alert Technical Bulletins (as applicable for the differen t models) with the proper installation procedure of the main rotor scissor fi tting. This Emergency AD requires the inspection of the ma in rotor scissor fitting for checking its proper installation and if found n ot to be properly installed, mandates the replacement of the bolts p/n 109-0101- 78-5 in accordance with Mandatory Alert Bolletino Tecnico (BT) Agusta. N° 109K-53 or Mandatory Alert BT Agusta N° 109-131.

Effective Date: 20 December 2009EASA AD No: 2009-0274-E

EASA Form 111 Page 2/2 Required action(s) and Compliance Time(s): Required as indicated, unless accomplished previous ly:

• within 5 flight hours after the effective date of this AD, inspect the main rotor scissor fitting assembly for checking it s proper installation in accordance with Agusta Mandatory Al ert BT 109-131 for A109A, A109AII, A109C and Agusta Mandatory Aler t BT 109K53 for A109K2; and

• if the main rotor scissor fitting assembly is not properly installed, within 25 flight hours after the effective date of this AD but not later then 30 April 2010, replace the bolts p/n 109-0101- 78-5 and the two washers p/n NAS1149C0463R and p/n NAS1149C0432R in accordance with Agusta Alert Mandatory BT 109-131 f or A109A, A109AII, A109C and Agusta Alert Mandatory BT 109K-5 3 for A109K2.

Ref. Publications: Agusta Alert Mandatory Bollettin o Tecnico 109K-53 dated 18 December 2009. Agusta Alert Mandatory Bollettino Tecnico 109-131 d ated 18 December 2009.

Remarks : 1. If requested and appropriately substantiated, EA SA can approve Alternative Methods of Compliance for this AD. 2. The safety assessment has requested not to imple ment the full consultation process and an immediate publication a nd notification. 3. Enquiries regarding this AD should be referred t o the Airworthiness Directives, Safety Management & Research Section, C ertification Directorate, EASA. E-mail: ADs@easa.europa.eu

. 4. For any questions concerning the technical conte nt of the requirements in this AD, please contact: Agusta S.p.a. Customer Support Via del Gregge, 100 - 21015 Lonate Pozzolo (VA) – Italy Phone + 39 0331- 664396 Fax: + 39 0331 664680 E-mail: custserv@agustawestland.com

.