Air traffic control atc transponders atc transponders

Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Standard 575/ Maintenance Requirements Republic of Lebanon

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(iii) utilising a radiated signal.

(2) Verify that the difference in Mode 3/A and Mode C receiver sensitivity does not exceed 1 dbm for either any class of ATCRBS transponder or any class of Mode S transponder.

(iii) For class 1A, 2A, 3A, 4 and class 1B, 2B and 3B Mode S transponders that include the optional high RF peak output power, verify that the minimum RF peak output power is at least 21.0 dbw (125 watts).

(iv) For class 1B, 2B and 3B Mode S transponders, verify that the minimum RF peak output power is at least 18.5 dbw (70 watts).

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Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Standard 575/ Maintenance Requirements Republic of Lebanon

(j) Squitter
Verify that the Mode S transponder generates a correct squitter approximately once per second.

(k) Integration Test

(B) 1,300';

(C) 2,700';

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Maintenance of Emergency Locator Transmitters (ELTs)

Corrosion Inspection
ELTs installed in aircraft are subject to extreme environmental conditions, which may cause corrosion to develop in circuit boards and battery compartments. As a minimum, corrosion inspection shall be performed during each required battery replacement and performance test.

Performance Testing

(1) Testing of any ELT shall be conducted in a screen room or metal enclosure, or, the transmitter power output shall be connected to a suitable dummy load to minimise radiation.

(c) the audio modulation, which shall be recognisable as a typical ELT signal, and shall meet the specifications of the ELT manufacturer;

(d) the measured current draw in the "Arm" or "Auto" position, and in the "On" position as specified by the ELT manufacturer; and (e) a test of the automatic activation system.

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Battery Replacement and Recharging
(1) Battery manufacturers are required to indicate the type, model, part number, ELT type & model(s) for which the battery has been approved, and the battery's expiry date.

(4) Rechargeable batteries shall be recharged:
(a) immediately before the ELT is installed in an aircraft;
(b) after use in an emergency;
(c) after an inadvertent activation of unknown duration;
(d) at the time intervals established by the ELT manufacturer; and
(e) when the cumulative time of all known transmissions exceeds one hour.

(5) Capacity tests and recharging shall be accomplished at the time intervals, and in accordance with the procedures established by the manufacturer.

The maintenance of CVRs shall be performed in accordance with the recommendations of the CVR

Information Note:
EUROCAE ED-56A document provides guidelines for CVR maintenance in general; it also provides information relative to equipment required to adequately evaluate the quality of voice recording.

Information Note:
EUROCAE ED-55 document provides information related to FDR maintenance.

Copies of ED-55 may be obtained from:
EUROCAE, 11 rue Hamelin, 75783 Paris CEDEX 16, France

a) TC Form 24-0078 Authorised Release Certificate;

b) JAA Form One Authorised Release Certificate;

7. Form LAR-001 may be reproduced by the user as a printed form or computer generated format. User produced forms, must comply with the format including block numbers. The blocks must be located as per the layout of form LAR-0001 to be acceptable to foreign authorities. The size of the blocks may be varied to suit individual applications, but not to the extent that would make the form unrecognizable.

8. The form should be completed in English when used for shipping aeronautical products outside of Lebanon. Compliance with this requirement is left to the originator discretion. However, shipments may be rejected where the requirements of the foreign airworthiness authority are not respected. The JAA requires that form LAR-001, that accompanies the aeronautical product(s), contains the certification of the organization that performed the work.

10. A numbering system to provide control and traceability must be established. These numbers should be reflected in block 3 of the form. The originator should maintain a method of cross-reference with the control number of the form and parts being shipped.

11. For bulk shipments, the information required in blocks 6 through 12 may be omitted if the document referenced in block 5 contains all the necessary information. It is the originators responsibility to determine if the authority of the importing country will accept such bulk shipments in this manner. When an attachment is used, it shall be cross-referenced to the number in block 3.

Block 4. The full name, address and DGCA approval number of the organisation releasing the aeronautical product(s) covered by the form. May be pre-printed.

Block 5. Its purpose is to reference work order, contract, and invoice numbers, list of parts covered by document in bulk shipments; or any other internal organisational process, such that a traceability system can be established.

Information Note:Information contained in block 9 does not constitute an authority to install the aeronautical product on a particular aircraft, engine or propeller. The user/installer must confirm via documents such as the Illustrated Parts Catalogue (IPC), Service Bulletins (SBs), etc., that the aeronautical product is eligible for installation.

Block 10. Enter the quantity of each aeronautical product listed.

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Block 13. Any information, either directly or by reference to supporting documentation, that identifies particular data or limitations relating to the aeronautical product being released that may be necessary for the user/installer to make the final airworthiness determination of the aeronautical product listed in block 7.

- Condition of parts or reference to a document detailing this information.

- Manufacturing data or cure date.

- Details of any outstanding work required to bring the part into an airworthy condition. - Any other special conditions.

Block 14. This certification statement pertains to newly manufactured parts identified as such in block 12. (This statement must be pre-printed on all forms.)
Block 15. Signature of the authorised person in permanent black ink.

Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Standard 575/ Maintenance Requirements Republic of Lebanon

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Block 22. The name of the person signing in block 20 shall be typed or printed in a legible manner.

Block 23.The date the form is signed.

2. Aircraft Used in Dual Role Operations
Upon conversion between roles, inspect to ensure that contamination, structural damage and other defects incurred during operation in the special purpose role, are rectified prior to operation in the normal role.

3. Rotorcraft Dynamic Components
At the intervals recommended by the aircraft manufacturer, inspect:

4. Variable Pitch Propellers

(a) Where the manufacturer has recommended a TBO in flying hours or cycles, this recommendation shall apply.

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Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Standard 575/ Maintenance Requirements Republic of Lebanon

(d) The interval of 5 years, required by paragraph (c), starts following the first installation of the propeller on the aircraft, subject to the following conditions:

(i) the propeller is new, properly packaged and protected against corrosion while in shipment or storage; or

5. Fixed Pitch and Ground Adjustable Propellers
At intervals of not more than 5 years, the propeller shall be removed from the aircraft and inspected for corrosion or other defects over its entire surface, including the hub faces and the mounting hole bores. While the propeller is removed, it shall also be checked for correct dimensions. However, if defects which require repairs beyond those recommended as field repairs by the propeller
manufacturer are found, the propeller shall be repaired by an organization approved for the overhaul of propellers.

Information Note:
The dimensional check requirement does not include a check on blade twist. The dimensional check refers to changes in blade dimension resulting from repairs, particularly cropping of the tips. It is intended to ensure that the blade diameter remains within service limits.

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8. Weight and Balance
Except as provided for in an approved fleet empty weight and balance control program, all aircraft shall be reweighed and an updated report prepared every five years and submitted to the DGCA.

(ii) a procedure for monitoring and recording the performance of the magnetic direction-indicators is detailed in the air operator's approved maintenance control manual.

(c) The calibration requirement can be postponed for any of a series of flights conducted within a period of seven consecutive days, where the series commences within the area of compass unreliability.

(c) ELT batteries shall be replaced at the interval recommended by the ELT manufacturer.

12. Altimetry Devices
Altimeters and other Altimetry devices installed in aircraft operating under Instrument Flight Rules, or under visual flight rules in Class B Airspace shall be calibrated at intervals not exceeding 24 months, to the standard outlined in Appendix B.

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14. Cockpit Voice Recorders (CVRs)
(a) Cockpit Voice Recorders (CVR), where installed for compliance with the basis of certification listed on the type certificate, or where required by operating rule, shall be subject to the following maintenance, in accordance with a maintenance schedule meeting the following requirements:
(i) an operational check;
(ii) a functional check;
(iii) an intelligibility check; and
(iv) unit overhaul, at the interval recommended by the CVR manufacturer.

Information Note:
EUROCAE ED-56A document provides guidelines for CVR maintenance in general; it also provides information relative to equipment required to adequately evaluate the quality of voice recording. Copies of ED56A may be obtained from:
EUROCAE, 11 rue Hamelin 75783 Paris CEDEX 16, France
(f) CVR maintenance details can be found in Appendix H.

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(b)Operational checks shall be conducted on ULDs upon installation, and once a year thereafter. The ULD battery shall be replaced on or before the expiry date stamped on the battery, and a label affixed to the ULD case indicating the next replacement date.

(c)The ULD shall be inspected and tested at the intervals specified below:

At the intervals specified in the table below, and where installed for compliance with the basis of certification listed on the type certificate, or where required by operating rules, FDRs shall be inspected and tested in accordance with Appendix I.

FDR Maintenance Schedule

(b)Exemption from the requirements for an AMO to hold a rating in the NDT category apply where:

(i) the technician holds an appropriate Level 2 or Level 3 NDT certification;

(a)The technician shall be trained and found qualified to perform typical NDT tasks for the methods being employed. He shall contract with either a recognised NDT training institute or an AMO holding appropriate ratings in the NDT category (hereafter referred to as the "training organisation") to provide this type of training.

(b)Where the technician is employed by an AMO, the training organisation shall provide the AMO with assistance in amending its quality assurance system to be effective for the NDT undertaken. This contract shall include a provision for the training organisation to audit the applicant on a regular basis, at least annually; to ensure that the inspections are completed in compliance with established procedures. The frequency of the audits will vary with the complexity of the specific NDT undertaken and will be conducted in compliance with the procedures established in the MOE of the AMO.

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Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Standard 575/ Maintenance Requirements Republic of Lebanon

(ii) is acceptable to the DGCA

(b) The training organisation shall test the selected individual by written and practical examination, on aeronautical products that are similar to applications that would be most commonly encountered, on test materials with known flaws. The examiner shall not attest to the applicant's qualifications until satisfied that he can carry out the inspection independently.

(a)Where the technician is employed by an AMO, the scope of work is limited to the specific NDT tasks covered by the training undertaken and must be listed in the AMO's personnel training records.

(b)Where the technician is not employed by an AMO, the scope of work is limited to the inspection of those parts specifically indicated in the technician's training documentation.

LARs

LEBANESE AVIATION REGULATIONS

Republic of Lebanon

Ministry of Transport Directorate General of Civil Aviation Lebanese Aviation Regulations Part V/Subpart 585/Service Difficulty Reporting Republic of Lebanon

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LEBANESE AVIATION REGULATIONS (LARs)

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