EASA AD No : 2010-0179

EASA Form 110 Page 1/2 

## EASA AIRWORTHINESS DIRECTIVE

AD No.: 2010-0179

Date: 30 August 2010

Note: This Airworthiness Directive (AD) is issued b y EASA, acting in accordance with Regulation (EC) No 216/2008 on behalf of the Europe an 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 en sured by accomplishing any applicable ADs. Conseque ntly, no person may operate an aircraft to which an Airworthiness Direc tive applies, except in accordance with the require ments of that Airworthiness Directive 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:
BAE SYSTEMS (OPERATIONS) LTD Type/Model designation(s):
Jetstream 4100 Aeroplanes

TCDS Number: EASA. A.189

Foreign AD: Not applicable

Supersedure: None



### ATA 52 Doors - Upper and Lower Passenger/Crew Door Pin Gui des –

Inspection / Replacement

Manufacturer(s): Jetstream Aircraft Ltd, British Ae rospace Regional Aircraft Ltd , British Aerospace (Operations) Ltd and British Aerospace (C ommercial Aircraft) Ltd
Applicability: Jetstream 4100 aeroplanes, all model s, all serial numbers.

Reason: A door failure mode has been reported by an operator. Investigation has shown that the passenger/crew ent ry door pin-guide plates can fail prior to the expected fatigue life. A meta llurgical examination of the failed component (lower guide plate) concluded that the occurred failure was due to exfoliation corrosion. The current inspection regime is not adequate to id entify early stages of this corrosion. This condition, if not corrected, can lead to the s udden depressurisation of the aeroplane and consequently may injure the occup ants. For the reasons described above, this AD requires i mmediate and periodic ultrasonic inspections of the door pin guides and t he accomplishment of the relevant corrective actions as necessary.

Effective Date: 13 September 2010

Required action(s) Required as indicated, unless ac complished previously:EASA AD No : 2010-0179

EASA Form 110 Page 2/2 and Compliance Time(s): (1) Within 6 months after the effective date of this AD , perform an ultrasonic inspection of the passenger/crew door up per and lower guide plates in accordance with the instructions of parag raph 2.B. and appendix 1 of BAE Systems (Operations) Ltd Service Bulletin (SB) J41-52-064.
(2) Thereafter, repeat the inspection required by p aragraph (1) of this AD at intervals not to exceed 48 Months.
(3) If, during the inspection required by paragraph s (1) and (2) of this AD, a split caused by exfoliation corrosion of an area of 78mm2 (0.12 in.2) or greater is detected, before next flight, replace an y guide plates affected by a serviceable one.
(4) After the replacement of the guide plates, as r equired by paragraph (3) of this AD, inspect the new guide plates 48 Months after the date of installation in accordance with the inspection requ ired by paragraph (1) of this AD, and thereafter repeat this inspection a t intervals not to exceed 48 Months.

Ref. Publications: BAE Systems (Operations) Ltd Service Bulletin J41-5 2-064, at original issue, dated 15 September 2009. The use of later approved revisions of this documen t is acceptable for compliance with the requirements of this AD.

Remarks: 1. If requested and appropriately substantiated, EA SA can approve Alternative Methods of Compliance for this AD. 2. This AD was posted on 20 July 2010 as PAD 10-073 for consultation until 17 August 2010. No comments were received during th e consultation period. 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: BAE Systems (Operations) Ltd, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; Telephone +44 1292 675207, Facsimile +44 1 292 675704; E-mail: RApublications@ baesystems.com