AD/PA-34/36 Amdt 3 - Rudder Torque Tube Attachment Fitting (Cth)

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES

Piper PA-34 (Seneca) Series Aeroplanes

AD/PA-34/36 Amdt 3

Rudder Torque Tube Attachment Fitting 9/92

Applicability: Models PA 34-200 S/No 34-7250001 to 34-7450220, PA 34-200T S/No 34-7570001 to 34-8170092, and PA 34-220T S/No 34-8133001 to 34-8533012.

Requirement: 1. Establish if the rudder torque tube fitting is steel or aluminium.

2. (a) If steel, inspect for proper attachment, and check the bolt torque in accordance with the criteria and instructions in Piper SB 899. If fitting is improperly attached or bolt torque is incorrect, rectify in accordance with Piper SB 899.

(b). If aluminium, replace with a steel fitting in accordance with the instructions in Piper SB 899.

3. If the steel fitting required by Requirement 2 (b) of this Directive has been ordered but is not available, as an interim until the fitting is available, accomplish the following:

(a). Visually inspect the aluminium fitting for corrosion. If any evidence of corrosion is found, remove and treat the corroded area in accordance with an acceptable process.

(b). Dye penetrant inspect the aluminium fitting for cracks. If found cracked, replace with an aluminium fitting found to be free from cracks and corrosion.

4. If the aluminium fitting is still fitted, visually inspect for proper attachment, cracks, and corrosion.

(a). If fitting is improperly attached or hardware is found loose, rectify in accordance with Piper SB 899.

(b). If any evidence of corrosion is found, remove and treat the corroded area in accordance with an acceptable process.

(c). If found cracked, replace with an aluminium fitting found to be free from cracks and corrosion; in accordance with the instructions in Piper SB 899.