Toronto (de Havilland)

PPS Revision Notice #2017-018

PPS 17.04, Issue 15 - Shot Peen Forming
Summary of Changes:

Clarified facility approval requirements to specify explicitely that facilities approved to perform shot peen forming according to BAPS 185-003 are also considered approved to perform shot peen forming according to PPS 17.04 without further approval needed (i.e., approval according to PPS 13.39 is not required).

PPS 20.08, Issue 16 - Hardness Testing of Metals
Summary of Changes:

Clarified all AMS references to remove the space between AMS and the specification number (e.g., replaced reference to AMS 4902 with reference to AMS4902). Note: these clarifications are not considered technical changes and are not marked with change bars.

Added hardness requirements for AMS6415 material to Table 8 (Hardness Values for Low Alloy Steels).

Added hardness requirements for AMS5517 material to Table 9 (Hardness Values for Corrosion Resistant Steels).

Clarified all instances in Table 11 where a Rockwell hardness requirement was specified in terms of a minimum B scale value and also an equivalent minimum E scale value. Note: these clarifications are not considered technical changes and are not marked with change bars.

Revised Rockwell hardness requirements for 7075 T76 clad sheet and plate with thickness 0.033 0.062 to specify an acceptable Rockwell hardness of B-75 B-91 (i.e., removed reference to an E scale lower limit).

Revised Rockwell hardness requirements for 7075 T76 clad sheet and plate with thickness of 0.063 and over to specify only an acceptable Rockwell hardness of B-74 B-87 (i.e., removed reference to an E scale lower limit).

Revised Rockwell Hardness requirements for 7075 T76 all bare, all thicknesses, to specify only an acceptable Rockwell hardness of B-82 B-91 (i.e., removed reference to an E scale lower limit).

This revision notice lists brief summaries of technical changes introduced for each of the revised PPS's. Please note that these summaries are not detailed and are intended only to assist in alerting users to changes which may affect them; refer to the applicable PPS for authorized, detailed procedure and requirements.

Page created and maintained by: Bombardier Toronto (de Havilland) - Core Methods (PPS)