AD/BEECH 1900/42 - Ventilation Blower Assemblies (Cth)

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (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 1900 Series Aeroplanes

AD/BEECH 1900/42 Ventilation Blower Assemblies 3/2004

Applicability: Beech 1900 model aeroplanes, as listed below.

Model

1900 1900C 1900 (C-12J) 1900D

Serial Number

UA-3 UB-1 through UB-74 and UC-1 through UC-174 UD-1 through UD-6 UE-1 through UE-427

Requirement: 1. Unless previously accomplished, check the maintenance records, in accordance with Raytheon Mandatory Service Bulletin SB 21-3448 issued October 2002, to determine if a part number (P/N) 114-380028-1, 114-380028-3, 114-380028-5 or 114-380028-7 ventilation blower assembly is installed. If, by checking the maintenance records, it can be definitely demonstrated that a P/N 114-380028-1, 114-380028-3, 114-380028-5 or 114-380028-7 ventilation blower assembly is not installed, no further action is required.

2. If, by checking the maintenance records, it is determined that a P/N 114-380028- 1, 114-380028-3, 114-380028-5 or 114-380028-7 ventilation blower assembly is installed, carry out the following in accordance with SB 21-3448.