14 5 mccauley j 4 cvr

METRO III - ICAO ANNEX 8 FAAAPPROVED AIRPLANE

FLIGHT

MANUAL

SUPPLEMENT

FOR METRO

III, SA227-AC

ICAO

ANNEX

8 - 14,500

WITH

MCCAULEY

COCKPIT

VOICE

POUNDS

PROPELLERS RECORDER

Registration No. Serial No. This supplement must be attached to the FAA Approved Airplane Flight Manual when a Fairchild Aviation Recorders Cockpit Voice Recorder, Model Al00 or Al OOA, is installed in accordance with FAC Drawing No. 27-14025. The information contained in this document supplements the basic manual only in those areas listed. For limitations, procedures, and performance information not contained in this supplement, consult the basic Airplane Flight Manual.

FAA Approved by:

L. B. Andriesen, Manager A-1 - Rotorcraft Directorate

Y

Aircraft Certification Service Department of Transportation Federal Aviation Administration Southwest Region Ft. Worth, Texas 76193-0100

Date: S-21-8

CVR FAA APPROVED: MAY 22/89

7

Supplement A-4 Page 1 of 6 4MC

METRO III – ICAO ANNEX 8 TABLE OF CONTENTS ITEM

PAGE

List of Revisions ....................................................................................................................................... 3 Section 1 – Limitations (No Change) ................................................................................................. 4 Section 2 – Normal Procedures ......................................................................................................... 4 Section 3 – Emergency Procedures (No Change) ............................................................................. 5 Section 3A – Abnormal Procedures (No Change) ................................................................................ 5 Section 4 – Performance (No Change) .............................................................................................. 5 Section 5 – Weight and Balance (No Change) .................................................................................. 5 Section 6 – Manufacturer’s Data ........................................................................................................ 5

Supplement A-4 Page 2 of 6 4MC

CVR FAA APPROVED: MAY 22/89

METRO III - ICAO ANNEX 8 LIST OF REVISIONS Revisions to the Airplane Flight Manual provide current information applicable to operation of the METRO III aircraft. Revised pages should be inserted in the manual to replace existing pages or to add additional pages, as applicable. The manual is valid only when all current revisions are incorporated.

Revision Number

Revised Pages

N/A

All

FAA Approved Description of Revision

Signature

Date

Supplement renumbered and reprinted to complement AFM Reissue A. Replaces former Supplement 4.

A black bar in the margin of a revised page shows the current change.

CVR FAA APPROVED: MAY 22l89

Supplement A-4 Page 3 of 6 4MC

METRO III – ICAO ANNEX 8 INTRODUCTION This supplement presents information relative to the cockpit voice recorder (CVR). The CVR records automatically when A.C. power is available. Pilot preflight and post flight checks are provided in this supplement. Faulty operation of the CVR cannot be corrected by the pilot.

SECTION 1 . . . . . . .LIMITATIONS

No Change.

SECTION 2 . . . . . . .NORMAL PROCEDURES

BEFORE STARTING ENGINES . . . Add following procedure.

COCKPIT VOICE RECORDER 1. Battery Switches ........................................................................................................................ ON 2. Inverter Switch ...................................................................................................... NO. 1 OR NO. 2 3. CVR Erase Button .......................................................................................... PRESS AND HOLD THREE SECONDS MINIMUM NOTE This step is optional. It merely bulk-erases the magnetic tape and provides a clear tape for the next 30 minutes of operation.

4. CVR Test Button ............................................................................................ PRESS AND HOLD FIVE SECONDS MINIMUM 5. CVR Meter.........................................................................................................CHECK POINTER STEADY DEFLECTION INTO GREEN BAND. NOTE Additional assurance of proper CVR test may be obtained by inserting headphone plug into jack on CVR control panel and listening to the test tone and four cycle clicks.

Supplement A-4 Page 4 of 6 4MC

CVR FAA APPROVED: MAY 22/89

METRO III – ICAO ANNEX 8 AFTER LANDING . . . Add following optional procedure for routine flight.

COCKPIT VOICE RECORDER 1. CVR Erase Button .......................................................................................... PRESS AND HOLD THREE SECONDS MINIMUM

SECTION 3 . . . . . . .EMERGENCY PROCEDURES

No Change.

SECTION 3A . . . . . . .ABNORMAL PROCEDURES

No Change.

SECTION 4 . . . . . . .PERFORMANCE

No Change.

SECTION 5 . . . . . . .WEIGHT AND BALANCE

No Change.

SECTION 6 . . . . . . .MANUFACTURER’S DATA COCKPIT VOICE RECORDER The CVR is capable of recording 30 minutes of aural sounds on four channels of an endless magnetic tape.

At the end of 30 minutes, previously recorded sounds are erased and new information is recorded. Sounds detected by the area microphone are recorded on one channel. Background noises, such as from engines and propellers are suppressed electronically. Another tape channel records all incoming signals which the pilot has chosen to receive by pushing in the respective buttons on his audio control box. A third channel is dedicated to the copilot's audio control box in a like manner. All VHF and intercom transmissions by either pilot will also be recorded on their respective channels. The remaining channel is dedicated to recording transmissions, by either pilot or copilot, over the public address system, provided that a public address system is installed in the aircraft.

CVR FAA APPROVED: MAY 22/89

Supplement A-4 Page 5 of 6 4MC

METRO III – ICAO ANNEX 8 SECTION 6 . . . . . . .MANUFACTURER’S DATA (continued) COCKPIT VOICE RECORDER (continued) The control unit is mounted in the pilot's instrument panel and includes a TEST button and meter, an ERASE button, and space for an area microphone. In the METRO III, the area microphone is located remote from the control unit. There is no ON-OFF switch and the recorder runs whenever A.C., power is available.

The TEST button, when pressed and held a minimum of five seconds, causes the CVR to run through a check cycle. Each of the four recording channels is checked, a tone is generated and recorded on each channel, and the test meter needle is driven to the green band during the test cycle. If a headset is plugged into the control unit, the tone can be heard during the test cycle. Failure of the needle to remain in the green band during the test indicates a fault in the recording channel being self-checked at that time. If sounds are generated near the area microphone while the headset is plugged into the control unit, they will be repeated through the headphones after a short delay, whether the TEST button is pressed or not.

The ERASE button, when pressed and held a minimum of three seconds, will cause all recorded information on the magnetic tape to be erased. This feature is operable only when the landing gear squat switches are in the weight-on-wheels position.

The recording unit is mounted aft of the cargo compartment aft bulkhead. It is contained in a crash and fire resistant case. Some installations include an underwater locator beacon mounted on the front of the recorder case. Tape life exceeds 8000 hours of running time.

Supplement A-4 Page 6 of 6 4MC

CVR FAA APPROVED: MAY 22/89