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| UNAPPROVED PARTS\                                   |   | ![](me      |
| NOTIFICATION                                        |   | dia/image1. |
|                                                     |   | png){width= |
| SUSPECTED UNAPPROVED PARTS PROGRAM OFFICE, AVS-20   |   | "0.72986111 |
|                                                     |   | 11111111in" |
| 13873 PARK CENTER ROAD, SUITE 165                   |   | height="    |
|                                                     |   | 0.741666666 |
| HERNDON, VA 20171                                   |   | 6666667in"} |
|                                                     |   |             |
|                                                     |   | U.S.        |
|                                                     |   | Department  |
|                                                     |   |             |
|                                                     |   | of          |
|                                                     |   | Tra         |
|                                                     |   | nsportation |
|                                                     |   |             |
|                                                     |   | **Federal   |
|                                                     |   | Aviation**  |
|                                                     |   |             |
|                                                     |   | **Admin     |
|                                                     |   | istration** |
|                                                     |   |             |
|                                                     |   | *No.        |
|                                                     |   | 2006-00051* |
|                                                     |   |             |
|                                                     |   | *April 27,  |
|                                                     |   | 2006*       |
+-----------------------------------------------------+---+-------------+

***http://www.faa.gov/aircraft/safety/programs/sups/upn/***

Mailed by FAA AIR-140, P O Box 26460, Oklahoma City OK 73125

**AFFECTED PARTS**

Scintilla (Bendix) magnetos.

**PURPOSE**

The purpose of this notification is to advise all aircraft owners,
operators, manufacturers, maintenance organizations, and parts suppliers
and distributors regarding improper maintenance performed on Scintilla
(Bendix) magnetos, model D9LN-2.

**BACKGROUND**

Information received during a Federal Aviation Administration (FAA)
suspected unapproved parts investigation revealed that C.P. Aero
Accessory (C.P. Aero), located at 1452 Gracephil Lane, Paradise, CA
95969, improperly maintained and returned to service Scintilla (Bendix)
magnetos. C.P. Aero previously held Air Agency Certificate No. OJ3R738L
with Accessory Class 1 and 2 ratings.

Evidence indicated that C.P. Aero approved for return to service
magnetos that were not overhauled in accordance with the current
manufacturer's maintenance manuals. Specifically, C.P. Aero failed to
replace bearings, seals, oil slingers, and carbon brushes with new parts
during overhaul. Additionally, replacement parts that were installed
during overhaul lacked traceability. The affected magnetos were either
sold as spare parts or installed on engines.

The table below presents a *partial list* of magnetos that C.P. Aero
approved for return to service.

  ------------ --------------------- ------------- ------------------ ------------ ----------------
  **Work Order **Return-to-Service   **Accessory   **Manufacturer**   **Assembly   **Assembly
  Number**     Approval Date**       Name**                           Model        Serial Number**
                                                                      Number**     

  2568         3/17/2004             Magneto       Scintilla (Bendix) D9LN-2       6969

  197          9/27/2005             Magneto       Scintilla (Bendix) D9LN-2       6969

  0004         10/13/2004            Magneto       Scintilla (Bendix) D9LN-2       02356
  ------------ --------------------- ------------- ------------------ ------------ ----------------

**RECOMMENDATIONS**

Regulations require that type-certificated products conform to their
type design. Aircraft owners, operators, manufacturers, maintenance
organizations, and parts suppliers and distributors should inspect their
aircraft, aircraft records, and/or parts inventories for any magnetos
approved for return to service by C.P. Aero. If any referenced magnetos
have been installed on aircraft, appropriate action should be taken. If
any are found in existing aircraft stock, it is recommended that the
magnetos be quarantined to prevent installation until a determination
can be made regarding their eligibility for installation.

The FAA has been unable to determine the various types of accessories
improperly maintained by C.P. Aero, and therefore recommends inspecting
any magneto, starter, generator, tachometer generator, alternator,
propeller governor, fuel pump, voltage regulator, reverse-current relay,
hydraulic pump, actuator, vacuum pump, relay, or valve that C.P. Aero
maintained between 2004 and 2006.

**FURTHER INFORMATION**

Further information concerning this investigation and guidance regarding
the above-referenced parts can be obtained from the FAA Flight Standards
District Office (FSDO) shown below. In addition to the above
recommendations, the FAA would appreciate any information concerning the
discovery of the above-referenced parts, the means used to identify the
source, and the action taken to remove the parts from aircraft and/or
stock.

This notice originated from the FAA Sacramento FSDO, 6650 Belleau Wood
Lane, Sacramento, CA 95822, telephone (916) 422-0272, fax (916)
422-0462; and was published through the FAA Suspected Unapproved Parts
Program Office, AVS-20, telephone (703) 668-3720, fax (703) 481-3002.