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(1) Manufacturers desiring to establish an average empty weight and empty c. g., in lieu of actually weighing each aircraft, should prepare a detailed proposal regarding the procedure to be followed. This material should be furnished to the assigned Aviation Safety Agent for approval. Any proposal which will provide an accurate determination of average empty weight and c. g. will be considered acceptable.

(2) The following example outlines an acceptable method for effecting this system.

(1) Actually weigh and determine the empty weight and c. g. of ten aircraft of the model, on the basis of each having the same "basic" equipment of the same weight(s) and same arm(s). Each aircraft may be weighed with its own “special" equipment installed, provided the weights and arms of those special equipment items are determined before installation. In such cases the effect of the "special" equipment on empty weight and c. g. should be computed, and adjustments made to determine the basic weight and c. g. position of each individual airplane. If the weight and c. g. of none of these ten airplanes deviate by more than 1 percent or 12 percent MAC, respectively, from the average for the entire ten, then that average may be considered acceptable for subsequent aircraft of identical equipment, subject to the periodic spot check specified in subdivision (ii) of this subparagraph.

(ii) Subsequently, with respect to identical aircraft, weigh an individual aircraft at regular intervals; e. g., each tenth aircraft for the purpose of determining continued accuracy of the initial empty weight and empty c. g., established. If this weighing indicates a variation in empty weight which is in excess of 1 percent of the initially established weight, or a variation in the empty c. g. which exceeds one-half percent of the MAC, sufficient identical aircraft should be checked to determine if the change in weight and/or c. g. is chronic. If it is determined to be an isolated case, the actual weight and c. g. shall be utilized for that one airplane. If the change is found to be chronic and consistent, a new average weight should be established in accordance with procedures followed in establishing the initial average empty weight and c. g. conditions.

(3) A weight and balance report is required in connection with each aircraft presented for airworthiness certifi

cation. These reports may be computed for aircraft which are not actually weighed, and should be marked "computed." All other reports should be marked "actual." (CAM 1 Rev., 21 F.R. 8803, Nov. 14, 1956] $ 1.35 Privileges.

It shall not be necessary for the holder of a production certificate to furnish a statement of conformity for each of the products produced under the terms of the production certificate. The holder of a production certificate may obtain an airworthiness certificate in the case of aircraft (see 1.67(a) and in the case of engines, propellers, or other products may obtain approval for installation on certificated aircraft. § 1.35-1 Statement of conformity (FAA

policies which apply to g 1.35). The Statement of Conformity, Form ACA-317, also will not be required for a product to be exported, provided the product is produced under the terms of a production certificate. (CAM 1 Rev., 21 F. R. 8803, Nov. 14, 1956) $ 1.36 Quality control data require

ments; prime manufacturer. The applicant shall submit for approval by the Administrator, as evidence of his ability to control the quality of any product for which he requests a production certificate, data describing the inspection and test procedures necessary to insure that each article produced is in conformity with the type design and is in a condition for safe operation. The data submitted shall include such of the following as are applicable to the product involved:

(a) A statement describing assigned responsibilities and delegated authority of the quality control organization, together with a chart indicating the functional relationship of the quality control organization to management and to other organizational components and indicating the chain of authority and responsibility within the quality control organization

(b) A description of inspection procedures applying to raw materials, outside purchased items, and parts and assemblies produced by subsidiary manufacturers. The information shall include the methods used to insure acceptable quality of parts and assemblies which cannot be completely inspected for conformity and quality when

delivered to the prime manufacturer's $ 1.37–1 Information on inspection sysplant.

tem; subsidiary manufacturers (FAA (c) A description of the methods used policies which apply to § 1.37). for production inspection of individual

(a) The prime manufacturer should parts and complete assemblies, including

include in the quality control data rethe identification of any special manu

quired by $ 1.36, sufficient information to facturing processes involved, the de

define and explain the means established scription of the means used to control

to assure that all major parts and assuch processes, a description of the final

semblies conform with the design data test procedure for the complete product,

when manufactured by a subsidiary and, in the case of aircraft, a copy of the

manufacturer. manufacturer's production fight test

(CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) procedure and checkoff list.

(d) An outline of the materials re- § 1.38 Changes in quality control sygview system, including the procedure for

tem. recording review board decisions and

Subsequent to the issuance of a disposing of rejected parts.

production certificate, any changes to (e) An outline of a system by means

the quality control system shall be subof which company inspectors are kept

ject to review by the Administrator. The currently informed regarding changes

holder of a production certificate shall in engineering drawings, specifications, immediately notify the Administrator in and quality control procedures.

writing of any such changes affecting the b) A list or chart showing location data prescribed in $ 1.36. and type of inspection stations.

$ 1.38–1 Changes in quality control sys§ 1.36–1 Quality control data require

tem (FAA interpretations which apments (FAA policies which apply to ply to § 1.38). $ 1.36).

(a) The phrase, “any changes to the The quality control data (one copy quality control system,” is interpreted to only) should be submitted in manual mean changes to a manufacturer's orform with the Application for a Pro ganization, systems, procedures or procduction Certificate, Form ACA-332, to esses which may affect the inspection, the local FAA Aviation Safety Agent. conformity, or airworthiness of the The data should include such material as product. Changes which are not consistinspection procedures, process controls,

ent with the quality control data subproduction and inspection control forms, mitted in accordance with $ 1.36 must be imprint of the various inspection stamps, promptly forwarded to the FAA by means etc.

of revised pages or supplemental infor(CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956)

mation. The FAA will review these

changes to determine that the quality, § 1.36–2 Quality control data (FAA in conformity, or airworthiness of the prodterpretations which apply to § 1.36). uct will not be adversely affected.

(b) It is not the purpose of this reThe words “description," "statement”

quirement to impose an unrealistic burand “outline" as used in $ 1.36 are in

den on the holder of the production terpreted to mean a comprehensive de

certificate by requiring an immediate scription of the quality control organiza

notification of each and every insignifition and the methods, procedures and

cant change in the operations of the practices employed to control the quality

quality control systems as may be necesof the finished product.

sary on a day to day basis. The intent (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956)

is to provide current quality control data $ 1.37

for the use of the FAA Aviation Safety Information on subsidiary manu

Agent in the performance of his duties facturers.

and responsibilities. The prime manufacturer shall make (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) available information regarding all ma

§ 1.39 Multiple products. jor inspections accomplished by a subsidiary manufacturer for acceptance of The Administrator may authorize parts or assemblies for which the prime more than one type certificated product manufacturer is responsible.

to be manufactured under the terms of

one production certificate provided that the products have similar production characteristics. § 1.39-1 Multiple products (FAA poli

cies which apply to g 1.39). More than one airplane type may be manufactured under the same production certificate, provided the types of construction and processes are similar. However, two basically different products such as an airplane and helicopter or an airplane and an engine will not be included under one production certificate. Separate production certificates will be issued for dissimilar products. (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) $ 1.40 Production limitation record.

A production limitation record shall be issued as part of a production certificate. The record shall list the type certificate of every product which the applicant is authorized to manufacture under the terms of a production certificate. Where different models of a basic type approved under the same type certificate number require different fabrication methods and processes, the Administrator may list the model designation of the product for which authorization is given, as well as the type certificate number, on the production limitation record. § 1.40-1 Production limitation record

(FAA policies which apply to § 1.40). The production limitation record is actually page 2 of the production certificate. Therefore, the Production Certificate, Form ACA-333, and the Production Limitation Record, Form ACA-333a, should always be displayed together, (See $ 1.45, Display.) Products approved for production under the terms of the production certificate are listed on the production limitation record by type certificate number(s) and date issued. Revisions to the production certificate for the purpose of adding or deleting a product are accomplished by revising the production limitation record only (see $ 1.41-1). (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) $ 1.41 Modification of the production

limitation record. The holder of a production certificate desiring the addition of a type certificate and/or model to the production certificate shall submit an application therefor

upon a form and in a manner prescribed by the Administrator. The applicant shall comply with the applicable requirements of $$ 1.32 through 1.36 and 1.38. f 1.41-1 Modifying a production limi

tation record (FAA policies which

apply to § 1.41). (a) To obtain the addition of a new type certificate number to a production limitation record, the manufacturer should submit an Application for Production Certificate, Form ACA332, in duplicate. This application should be accompanied by any changes in the quality control data (see $ $ 1.30, 1.36, 1.37 and 1.38) not previously reported which are pertinent to products covered by the new type certificate.

(1) Upon approval of the quality control data and a satisfactory inspection of the facilities, a superseding production limitation record will be issued, listing the new type certificate number. The manufacturer will be requested to return the superseded production limitation record for cancellation.

(b) To obtain the extension of production certificate privileges for a new model added to a type certificate previously listed on the production limitation record the manufacturer may follow the procedure outlined in paragraph (a) of this section, or notify the FAA that production certification privileges are desired with respect to the new model by so indicating in the space provided on the Application for Type Certificate, Form ACA-312. If the application for production certificate privileges is approved, the manufacturer will be notified that these privileges have been extended to cover the new model.

(c) The manufacturer, by letter, may request the deletion of one or more type certificates from a production limitation record. It is recommended that the manufacturer request deletions of type certificates on the production limitation record when neither complete products nor spare parts covered by such certificates are being produced. In such cases, a revised production limitation record reflecting the requested changes will be issued by the FAA regional office and forwarded to the manufacturer with a request that the superseded production limitation record be returned for can

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(CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956)

will be visited and evaluated as often as the FAA representative deems necessary to assure that quality products are being produced. The results of these station inspections will be recorded on a suitable form for future reference and follow-up. In accomplishing station inspection activities, the following general items or factors will be evaluated:

(1) Adherence to established quality control data.

(2) Adequacy and competency of the quality control system.

(3) Operation of the designee system.

(4) Adequacy of facilities and equipment.

(5) Availability of adequate drawings, engineering orders, etc.

(6) Adequacy of inspection aids, devices, gauges, etc.

(7) Adequacy of inspection records (travel sheets, reports, tags, stamps, etc.).

(8) Operation of Materials Review Board.

(9) Identification and disposition of items processed by Materials Review Board.

(10) Adequacy of processes control.
(11) Completeness and accuracy of

8 1.42 Transferability.

A production certificate shall not be transferred. f 1.42–1 Change of ownership (FAA

policies which apply to g 1.42). When the ownership of a company holding a production certificate is transferred, the production certificate should be surrendered to the appropriate FAA regional office for cancellation. The new owner should apply for a new production certificate which will be processed as an original application in accordance with $ 1.30. (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) § 1.43 Inspections and tests.

A representative of the Administrator shall be permitted to make such inspections and in the case of aircraft, flight tests as may be necessary to determine compliance with the requirements of the regulations in this subchapter. $ 1.43-1 Inspection by FAA representa

tive (FAA policies which apply to

$ 1.43). The FAA representative will maintain surveillance of the manufacturer's facilities; make such spot inspections of individual products as may be necessary to ascertain that the manufacturing facilities and quality control system continuously comply with related requirements and that individual products conform with approved type design data; and issue domestic and export air worthiness certificates. The representative is authorized to approve certain design changes and repairs, and to assist in other activities involving the Civil Air Regulations; e. g., witnessing various types of engineering and quality control inspections and tests, investigating reported service difficulties and accidents, and training and supervising Designated Manufacturing Inspection Representatives.

(a) Inspection station surveillance. This is one of the inspection techniques which the FAA representative will use in evaluating the continued acceptability of the manufacturing facilities, systems, and procedures, and in determining that component parts and the completed products reasonably conform to the type design data. This inspection technique involves a systematic evaluation of the operation of the manufacturer's inspection stations. Each station, as listed in the manufacturer's quality control data,

(b) Production conformity inspection. This is a technique used by the FAA representative to supplement inspection station surveillance; or in small plants with a low rate of production, it may be used in lieu of station inspection. A conformity inspection is an inspection of a part or process conducted to establish the degree of conformity with the applicable drawings or specification.

(1) Production conformity inspections will be made on major structural items and assemblies such as major structural forgings and castings, critical parts, major assemblies and subassemblies, systems, installations, and processes. The conformity inspection of minor items will be held to a minimum whenever feasible.

(2) In evaluating the inspection control of an area, random samples of the part(s) being manufactured in the area will be subjected to detailed conformity inspection only after the parts have been accepted in accordance with the manufacturer's established procedures. The FAA representative may inspect the part, or he may witness the inspection conducted by the manufacturer's employee. General shop practices and workmanship will also be considered in the evaluation. (3) The FAA representative will check equipment and process records against the product characteristics to evaluate the effectiveness of the control.

(4) Examples of conformity inspections are as follows:

(i) The physical dimensional checking, or the witnessing of the physical dimensional checking, of a part and, where applicable, the complete product or assembly, to the specified dimensions on the approved drawings.

(ii) Witnessing the heat treatment of parts and checking the various steps fol. lowed in the heat treatment operation against the applicable specifications.

(iii) Conducting or witnessing resistance spot welding pull tests and checking the results to the applicable specification or drawings.

(iv) Witnessing the hardness testing of heat treated steel and aluminum parts.

(v) Checking, or witnessing the checking of, the moisture content of lumber to the applicable drawing or specification.

(vi) Witnessing the production testing to determine the engine's fuel and oil consumption and maximum power characteristics.

(vii) Witnessing the inspection of propellers for balance, blade edge and face alignment, track, blade contour, assembly, and operation.

(viii) Checking a rivet pattern to an applicable drawing.

(ix) Checking an oxyacetylene welder while he is accomplishing a weld.

(x) Witnessing the laboratory checking of plating or heat treatment solution to the applicable specifications.

(c) Additional inspections of parts and assemblies. These will be conducted on a sampling basis to the extent and frequency necessary to evaluate the effectiveness of inspection control and related functions; to assure proper fabricating and assembly methods and procedures; and to ascertain that adequate safeguards are employed to minimize the probability of damage to materials, parts and assemblies. During these inspections, it will also be ascertained that inspection tags, "travel" cards, etc., are being properly completed, and that parts in process are properly identified during the various stages of fabrication.

(d) Airworthiness inspections. Inspections will be conducted by the FAA representative on the completed products, as necessary, to assure that the products comply with applicable air

worthiness requirements and are safe for operation. Upon application and following completion of satisfactory inspection, the FAA representative will issue domestic airworthiness certificates or certificates of airworthiness for export.

(e) Interim inspections. As considered necessary, the FAA representative will conduct interim inspections of changes to the manufacturing and quality control procedures that occur from time to time which may affect the airworthiness of the product.

(f) Annual inspections. A factory inspection will be conducted at least once a year to assure that the facilities are at least equivalent to the standards described in the quality control data for the issuance of the production certificate. Any conditions found which are not considered equivalent to the standards, or appear undesirable, will be reported to the manufacturer for consideration and corrective action. (CAM 1 Rev., 21 F. R. 8804, Nov. 14, 1956) $ 1.43–2 Inspection by FAA Designated

Manufacturing Inspection Representatives (FAA policies which apply to

§ 1.43). A manufacturer holding a production certificate may obtain the appointment of individuals in his employ as Designated Manufacturing Inspection Representatives who may be authorized to act in the capacity of Aviation Safety Agents. Information relative to the designation and the authority of these representatives is contained in Part 418 of this title (Regulations of the Administrator). (CAM 1 Rev., 21 F. R. 8805, Nov. 14, 1956) $ 1.44 Duration.

A production certificate shall remain in effect until surrendered, suspended, revoked, or a termination date is otherwise established by the Administrator, or the location of the manufacturing facility is changed. (20 F.R. 7722, Oct. 14, 1955) $ 1.44–1 Duration (FAA policies which

apply to § 1.44) (a) Surrender. Where production has been indefinitely or permanently discontinued, the manufacturer should surrender the production certificate to the regional office, or to the assigned Aviation Safety Agent, with a written request for cancellation.

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