Federal Register of Legislation - Australian Government

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AD/BEECH 35/72 - Landing Gear Up-lock Mechanism

Authoritative Version
AD/BEECH 35/72 Airworthiness Directives/Pt 105 — Aircraft as made
Landing Gear Up-lock Mechanism
Administered by: Infrastructure, Transport, Regional Development, Communications and the Arts
Exempt from sunsetting by the Legislation (Exemptions and Other Matters) Regulation 2015 s12 item 15
Registered 17 May 2007
Tabling HistoryDate
Tabled HR23-May-2007
Tabled Senate12-Jun-2007



For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.001(1) of CASR 1998.  The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

Beechcraft 35 (Bonanza) Series Aeroplanes

AD/BEECH 35/72

Landing Gear Up-lock Mechanism




Beechcraft Bonanza aircraft models 35, A35, B35, C35, D35, E35, F35, G35, H35, J35, K35, M35, N35, P35, S35, V35, V35A, and V35B serial numbers D-1 through D-9287, inclusive.


Using the information contained in Beechcraft Service Instructions (SI) No. 0448-211 at any FAA approved revision status:

1.    Determine if each up-lock roller is of the greasible type (one having a drilled and grooved inner race).

2.    Replace any non-greasible up-lock roller (one having a solid inner race) with the greasible type.

3.    Install hollow zerk-ended mounting bolts on the up-lock rollers.

4.    Lubricate the up-lock mechanism.

Note:  FAA 2007-08-08 Amendment 39-15025 dated 06 April 2007 refers.  FAA AD 2007-08-08 supersedes FAA AD 72-22-01 Amendment 39-1544.


1.    Unless already accomplished, within 100 hours time in service (TIS) after the effective date of this AD.

2.    Before further flight, after the determination required by Requirement 1 of this AD.

3.    Unless already accomplished, within 100 hours TIS after the effective date of this AD.

4.    Unless already accomplished, initially within 100 plus/minus 10 hours TIS, and repetitively thereafter, at intervals not to exceed 100 plus/minus 10 hours TIS.


This Airworthiness Directive becomes effective on 7 June 2007.






This AD results from a recent incident involving a Beechcraft Model 95-B55B
(T-42A) airplane where a seizure of the uplock rollers occurred.  The Requirements of this AD are aimed at decreasing the possibility of gear-up landings caused by seizure of the up-lock rollers.

David Punshon
Delegate of the Civil Aviation Safety Authority

26 April 2007