EASA AD No.: 2012-0086-E 

CAP.00111-001 © European Aviation Safety Agency. All rights reserved. 1/3 

Proprietary document. Copies are not controlled. Confirm revision status through the EASA-Internet/Intranet.

EASA EMERGENCY AIRWORTHINESS DIRECTIVE 

AD No.: 2012-0086-E

Date: 18 May 2012

Note: This Emergency Airworthiness Directive (AD) is issued by EASA, acting in accordance 

with Regulation (EC) No 216/2008 on behalf of the European Community, its Member States 

and of the European third countries that 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 be ensured by accomplishing any applicable ADs. Consequently, no person may operate an 

aircraft to which an AD applies, except 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]. 

Design Approval Holder’s Name:

AgustaWestland S.p.A.

Type/Model designation(s):

AB412 and AB412EP helicopters

TCDS Number: ENAC Italy SO/A 375 

Foreign AD: Not applicable 

Supersedure: This AD supersedes EASA AD 2012-0077-E dated 03 May 2012. 

ATA 25 Equipment & Furnishings – Hoist Hook – Inspection

Manufacturer(s): AgustaWestland S.p.A (formerly Agusta S.p.A.), AgustaWestland Philadelphia 

Corporation (formerly Agusta Aerospace Corporation). 

Applicability: AB412 and AB412EP helicopters, all serial numbers. 

Reason: An occurrence was reported where the hoist hook separated from an Agusta 

AB412 helicopter. The initial results of the technical investigation revealed that 

the nut and housing hook were not properly attached. 

This condition, if not detected and corrected, could lead to detachment of an 

external load or person from the helicopter hoist, possibly resulting in personal 

injury, or injury to persons on the ground. 

To address this potential unsafe condition, AgustaWestland issued Bollettino 

Tecnico (BT) 412-132, which provides instructions to inspect the hoist hook and 

EASA issued AD 2012-0077-E which required, for helicopters equipped with 

hoist hook assembly Part Number (P/N) HK-118-2, a one-time inspection of the 

hoist hook and, depending on findings, correction of the hoist hook installation 

attachment. In addition, that AD required repetitive inspections of the hoist hook 

installation after each disassembly. 

Since issuance of EASA AD 2012-0077-E, it has been determined that the 

same condition might be present for helicopters equipped with hoist hook 

assembly P/N BL-5740-8. 

To address this potential unsafe condition, AgustaWestland issued BT 412-133, 

which provides instructions to inspect the hoist hook assembly P/N BL-5740-8. 
EASA AD No.: 2012-0086-E 

CAP.00111-001 © European Aviation Safety Agency. All rights reserved. 2/3 

Proprietary document. Copies are not controlled. Confirm revision status through the EASA-Internet/Intranet.

For the reasons described above, this AD retains the requirements of EASA 

AD 2012-0077-E which is superseded, and expands the applicability of the AD 

to helicopters equipped with hoist hook assembly P/N BL-5740-8. 

Effective Date: 19 May 2012 

Required Action(s) 

and Compliance 

Time(s): 

Required as indicated, unless accomplished previously: 

Re-statements of requirements of EASA AD 2012-0077-E: 

(1) Before next flight after 04 May 2012 [the effective date of AD 2012-0077-

E], for helicopters equipped with hoist P/N 412-8800-01-202 (Breeze 

Eastern P/N BL-20200-402) and/or hoist P/N 412-8800-01-412 (Breeze 

Eastern P/N BL-20200-412), where hoist hook assembly P/N HK-118-2 is 

installed, inspect the hoist hook assembly in accordance with the 

instructions of AgustaWestland BT 412-132. 

(2) After 04 May 2012 [the effective date of AD 2012-0077-E], before next 

flight following each disassembly and subsequent reassembly of the hoist 

hook assembly P/N HK-118-2, inspect the hoist hook assembly in 

accordance with the instructions of AgustaWestland BT 412-132. 

(3) If, during any inspection as required by paragraph (1) or (2) of this AD, as 

applicable, a discrepancy is detected, before next flight, correct the hoist 

hook assembly installation in accordance with the instructions of 

AgustaWestland BT 412-132. 

(4) From 04 May 2012 [the effective date of AD 2012-0077-E], do not install on 

a helicopter a hoist hook assembly P/N HK-118-2, unless it has passed the 

inspection in accordance with the instructions of AgustaWestland BT 412-

132. 

New requirements of this AD: 

(5) Before next flight after the effective date of this AD, for helicopters 

equipped with hoist P/N BL-20200-75 (Breeze Eastern) and/or hoist P/N 

BL-20200-95 (Breeze Eastern), where hoist hook assembly P/N BL-5740-8 

is installed, inspect the hoist hook assembly in accordance with the 

instructions of AgustaWestland BT 412-133. 

(6) After the effective date of this AD, before next flight following each 

disassembly and subsequent reassembly of the hoist hook assembly P/N 

BL-5740-8, inspect the hoist hook assembly in accordance with the 

instructions of AgustaWestland BT 412-133. 

(7) If, during any inspection as required by paragraph (1) or (2) of this AD, as 

applicable, a discrepancy is detected, before next flight, correct the hoist 

hook assembly installation in accordance with the instructions of 

AgustaWestland BT 412-133. 

(8) From the effective date of this AD, do not install on a helicopter a hoist 

hook assembly P/N BL-5740-8, unless it has passed the inspection in 

accordance with the instructions of AgustaWestland BT 412-133. 

Ref. Publications: AgustaWestland BT 412-132 original issue dated 02 May 2012. 

AgustaWestland BT 412-133 original issue dated 17 May 2012. 

The use of later approved revisions of these documents is acceptable for 

compliance with the requirements of this AD. 

Remarks: 1. If requested and appropriately substantiated, EASA can approve 

Alternative Methods of Compliance for this AD. 

2. The results of the safety assessment have indicated the need for 

immediate publication and notification, without the full public consultation 

process. 
EASA AD No.: 2012-0086-E 

CAP.00111-001 © European Aviation Safety Agency. All rights reserved. 3/3 

Proprietary document. Copies are not controlled. Confirm revision status through the EASA-Internet/Intranet.

3. Enquiries regarding this AD should be referred to the Safety Information 

Section, Executive Directorate, EASA. E-mail:ADs@easa.europa.eu.

4. For any question concerning the technical content of the requirements in 

this AD, please contact: 

AgustaWestland S.p.A. Customer Support 

Via del Gregge, 100 - 21015 Lonate Pozzolo (VA) – Italy 

Telephone + 39 0331-664873 ; Fax: + 39 0331-664680 

E-mail: absereng@agustawestland.com.