FAA Inspector Training

FAA Repair Station & Mechanic School Training

FAA Training

FAA-Authorized Repair Station and Mechanic School Training

"The FAA on July 2 ordered Operators of CFM 56-7B powered Boeing 737 -700's and -800's to immediately check those engines for signs of internal failure. The telegraphic airworthiness directive followed separate, in-flight shutdowns of one CFM56-7B each on 737's operated by Transaero and Braathens airlines. Investigations determined the accessory gearbox starter gearshaft in each engine suffered fatigue failure that stemmed from a manufacturing process change. A vendor for CFM International eliminated shot peening of the gearshaft hub in mid 1996. FAA officials said the lack of shot peening was the primary cause of failures. CFM had the vendor reinstitute shot peening earlier this year and has launched a program to replace roughly 400 gearshaft hubs."

Edward H. Phillips/Dallas
Aviation Week & Space Technology
July 6, 1998

"The gearshafts failed because of high residual tensile stress (fatigue) induced during manufacturing. These stresses, coupled with the absence of a shot peening process for the gearshaft hub, led to the failures. Shot peening helps prevent stresses and subsequent cracks."

Edward H. Phillips/Dallas
Aviation Week & Space Technology
July 13, 1998

Maintenance of aircraft structures and power plants often requires a process called shot peening to enhance (restore) fatigue properties lost in service or repair (welding, blemish removal etc.). Shot peening is NOT just bead blasting or blast cleaning (used in oxide removal). It is a complex and highly controlled process used to put fatigue-prone parts into compression and thereby prevent tensile fatigue failures.

Many of your graduates will be expected to either perform shot peening or to be able to out-source shot peening. You can advance their career capabilities by adding shot peening to your curriculum. We can help.

We can:

Train your instructors at your facility or ours
Train your students at your facility or ours
Recommend teaching aides and equipment you might need
Provide presentation and examination materials

To learn more:

Use the menu on the left to browse our web pages
Visit www.shotpeener.com
Attend European Workshop 2004 in Goteborg, Sweden
Attend US Workshop 2004 in Dearborn, Michigan
Call us at 1-800-83-5653

We are:

Electronics Inc. has been involved with shot peening since 1978. We manufacture the MagnaValve used on all major brands of wheel type and air type shot peening machines. We also make and sell peening accessories such as Almen gages, holders and strips. We publish the international newsletter, "The Shot Peener," which is distributed in over 43 countries. We organize workshops and provide on-site training for shot peening. We train the FAA and PRI NADCAP inspectors and auditors.
May we be of service?

Jack Champaigne
President, Electronics Inc