Document ID: chunk:federal_register_of_legislation:F2006B09088:body:0:p2
Version: federal_register_of_legislation:F2006B09088
Segment Type: other
Provision Reference: 
Character Range: 2784–4591

number (P/N) W31- X2M1G-7.5, as referenced in the SIL, is an acceptable circuit breaker switch.

                  2. If the engine installation utilizes only a P3 heated pneumatic line, unless already accomplished, install a 5.0 Amp circuit breaker switch in accordance with The Drawing. Potter & Brumfield P/N W31-X2M1G-5.0 is an acceptable circuit breaker switch.

 DHC-3 (Otter) Series Aeroplanes

 AD/DHC-3/38 (continued)

           Note 3: Transport Canada AD CF-2002-38 refers.

           Compliance: For Requirement 1 - Within 300 hours time in service after the effective date of this Directive, but no later than 31 January 2003.

           For Requirement 2 - Before fur ther flight after the Requirement 1 inspection.

           For Requirement 3 - Within 300 hours time in service after the effective date of this Directive, but no later than 31 January 2003.

           This Airworthiness Directive becomes effective on 28 November 2002.

           Background: The original issue and Revisions A to F on Sheet 1 of 3 of A.M. Luton Electrical System Schematic Drawing No. 20075 correctly shows the wiring to the electrical heating blankets on P3 and Py pneumatic lines and to the "Push to Test" function lights to be wired in parallel. Revisions G and H show incorrect (series) wiring; this incorrect (wired in series) wiring configuration can result in the current being absorbed by the light bulbs with no current for the heating blankets. Loss of pneumatic heating can result in loss of engine power or reverse propeller overspeed governing protection. Revision I corrects this mistake.

 Barry James Reid McKay
 Delegate of the Civil Aviation Safety Authority 18 October 2002

 The above AD is notified in the Commonwealth of Australia Gazette on 6 November 2002.