PS Engineering PAC24 Dokumentacja Pobierz pdf (Strona 38)

PS Engineering

PAC24 Series Audio Selector Panel and Intercom System

Installation and Operator’s Manual

200-240-0010 Appendix C Rev. 25, Feb. 2015

Appendix C- Instructions for FAA Form 337 and continuing air-

worthiness

8.1 Instructions for FAA Form 337, Audio Panels

One method of airworthiness approval is through an FAA Form 337, Major Repair and Alteration (Airframe, Powerplant, Pro-

peller, or Appliance) In the case of the PAC24, you may use the following text as a guide.

Installed audio selector and 6-place intercom, PS Engineering PAC24, part number 050-240- (XXX) in ( location ) at

station . Installed per AC43.13-2B, Chapter 2, Installed per PS Engineering Installation Operators Manual p/n

200-240-(XXXX), revision (), dated ( ).

This unit is FAA-Approved under TSO C50c for audio amplifiers, and meets appropriate environmental qualifications

outlined in RTCA DO-160D as appropriate or this aircraft.

Interface to existing aircraft radios in accordance with installation manual and in compliance with practices listed in

AC43.13-2B, Chapter 2. All wires are Mil-Spec 22759 or 27500. Connection to aircraft dimmer bus is

____________________. Power is supplied to the unit through a 3A circuit breaker (type and part number), and total

electrical load does not exceed % of the electrical system capacity with the PAC24 added.

Aircraft equipment list, weights and balance amended. Compass compensation checked. A copy of the operation in-

structions, contained in PS Engineering document 200-240-( ), revision ( ), dated ( ), is placed in the aircraft records.

All work accomplished listed on Work Order .

8.2 Instructions for Continuing Airworthiness, Audio Panels

Sample ICA Checklist for PS Engineering Audio Panels:

Section

Item

Information

Introduction

Installation of audio control panel with integrated marker beacon receiver and

intercommunications system.

Description

Installation as described in manufacturer’s installation manual referenced on

FAA Form 337, including interface with other avionics audio as required.

Controls

See installation and operator’s guide referenced on FAA Form 337.

Servicing

None Required

Maintenance Instructions

On Condition, no special instructions

Troubleshooting

In the event of a unit problem, place the unit into “off,” “fail-safe” and/or

“emergency” mode. This allows pilot communications using COM 1. Follow

checkout instructions in the installation manual referenced on the FAA Form

337. For a specific unit fault, contact the manufacturer at (865) 988-9800 for

special instructions.

Removal and replacement infor-

mation

Removal: Using a 3/32” Allen-head wrench, carefully unscrew the locking

screw located in the center of the unit. While turning the wrench CCW, gently

pull on the EDGES of the bezel until the unit is free from the mounting tray.

Installation: Engage the locking screw at the back. Turn the locking screw CW,

while applying slight pressure to the edges of the bezel. Do not over tighten!

Diagrams

Not applicable

Special Inspection Requirements

Not Applicable

Protective Treatments

Not Applicable

Structural Data

Not Applicable

Special Tools

None

Not Applicable

Recommended Overhaul Periods

None

Airworthiness Limitations

Not Applicable

Revision

To be determined by installer

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