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| **U.S.      |                 |            |     |                 |
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| *           |                 | **Date:**  |     | **AC No.:**     |
| *Subject:** |                 | 9/29/07    |     | 150/5370-12A    |
| quality     |                 |            |     |                 |
| CONTROL of  |                 | *          |     | **Change:**     |
| c           |                 | *Initiated |     |                 |
| onstruction |                 | by:**      |     |                 |
| FOR Airport |                 | AAS-100    |     |                 |
| GRANT       |                 |            |     |                 |
| Projects    |                 |            |     |                 |
+-------------+-----------------+------------+-----+-----------------+

1.  **PURPOSE.** This advisory circular (AC) provides information to
    ensure the quality of construction accomplished under the Federal
    Aviation Administration's (FAA) Airport Improvement Program (AIP).

2.  **BACKGROUND.** The FAA has the responsibility of determining
    whether all construction work accomplished under the AIP is in
    accordance with the contract documents. A report issued by the
    Office of the Inspector General indicated that, in some instances,
    work performed was not accomplished in compliance with plans and
    specifications. In addition, quantities of materials used were not
    properly measured and documented and testing or quality assurance
    procedures were inadequate.

3.  **CANCELLATION.** This AC cancels AC 150/5370-12, *Quality Control
    of Construction for Airport Grant Projects,* dated September 6,
    1985.

4.  **APPLICATION.** The FAA recommends the guidelines and standards in
    this AC for airport construction projects. This AC does not
    constitute a regulation and in general is not mandatory. However,
    use of these guidelines is mandatory for construction projects
    funded under the Airport Improvement Program (AIP). Mandatory terms
    such as "must" apply only to those who undertake construction
    projects using AIP funds. For such projects, the sponsor, the
    sponsor's engineer, and the FAA project manager must assume the
    responsibilities outlined in the following paragraphs to ensure the
    materials and workmanship incorporated into a project are in
    conformity with the requirements of the approved or certified plans
    and specifications.

5.  **SPONSOR'S RESPONSIBILITIES.** The sponsor is responsible for all
    project engineering, including the preparation of plans and
    specifications, construction supervision, and inspection and testing
    for acceptability and quality. If the sponsor does not have the
    staff or the expertise to perform these services, then the sponsor
    should retain a consulting engineering firm. The consultant
    represents the sponsor and has overall responsibility for reporting
    on the acceptability and quality of the work. The relations of the
    consultant with the sponsor must be clearly defined by a written
    agreement before the start of work.

    a.  **Engineering Services.** AC 150/5100-14, *Architectural,
        Engineering, and Planning Consultant Services for Airport Grant
        Projects,* identifies items that should be included in a
        contract for engineering services. In some cases, the sponsor
        may retain an independent firm to perform testing for project
        control. It is, therefore, extremely important that the contract
        clearly delineate the division of responsibility and authority
        between the sponsor, the consultant, and the testing firm. For
        example, the agreement should define the party responsible for
        designating the location and number of tests, for interpreting
        test results, and for follow-up procedures for failing test
        results.

    b.  **Predesign and Preconstruction Conferences.** Predesign and
        preconstruction conferences conducted by the sponsor should be
        held to discuss various items, including testing and quality
        control. AC 150/5300-9, *Predesign, Prebid, and Preconstructon
        Conferences for Airport Grant Projects,* provides guidance for
        conducting such conferences.

    c.  **Supervision and Inspection.** The sponsor must provide
        adequate and qualified engineering supervision and construction
        inspection during all stages of the work. The FAA may request
        the sponsor to furnish a written assurance that it has reviewed
        the qualifications of personnel who will be performing these
        functions and that they are qualified to do so.

6.  **ENGINEER's RESPONSIBILITIES.** The basic services normally
    required for airport development projects are the preliminary phase,
    design phase, bidding phase, and construction phase. The design and
    construction phases are directly related to quality of construction.
    AC 150/5100-14 contains a listing of activities normally performed
    during these phases.

    a.  **Design Phase.** The design phase includes all activities
        required to accomplish a complete project design, including
        development of plans and specifications. The standards contained
        in AC 150/5370-10, *Standards for Specifying Construction of
        Airports,* current edition, relate to materials and methods used
        in the construction of airports and must be used for projects
        funded under the FAA's AIP. Although these specifications
        reflect acceptable standards, practices, and techniques in
        airport construction, they are general in scope. For contract
        purposes, the various permissible options with regard to local
        materials, methods, and testing must be defined in the contract
        documents. In particular, the minimum testing frequency for job
        control must be specified in the project specifications.

    b.  **Construction Phase.** The construction phase includes all
        activities required after the award of a construction contract.
        The basic services of an engineering agreement normally include
        periodic inspection of the work in progress but not the services
        of a full-time resident engineer or inspector. Full-time
        inspection may be provided by the sponsor or by the consulting
        engineer under a supplemental agreement. In some instances, the
        sponsor may negotiate a separate agreement for services to be
        provided during this phase.

        1.  Resident Engineer or Inspector. The resident engineer or
            inspector must have field experience in the type of work to
            be performed; be fully qualified to make interpretations,
            decisions, field computations, etc.; and have knowledge of
            testing requirements and procedures. The resident engineer
            or inspector must have the authority to reject both
            unsatisfactory workmanship and materials. Primary duties are
            as follows:

            i.  Checks activities to ensure compliance with the plans
                and specifications. Informs the contractor of any work
                that is in noncompliance.

            ii. Ensures that all testing required by the specification
                is performed. All commercially produced products, such
                as pipe and reinforcing steel, that are used on the
                project should be accompanied by numerical test results
                or a certification from the manufacturer that the
                material meets the applicable standards.

            iii. Visits the testing laboratory to determine if it has
                 the equipment and qualified personnel necessary to
                 conduct the tests required by the specifications.

            iv. Ensures that tests are performed at the frequency stated
                in the specifications. Determine when and where tests
                will be taken and witness tests. If not indicated in the
                specifications, a sufficient number of tests should be
                taken to verify that the construction is acceptable.

            v.  Reviews test reports and certifications for conformance
                with the specifications. Each test report for material
                in-place should, at a minimum, contain the following:

                a.  Test performed and date.

                b.  Applicable standard or project specification.

                c.  Test location.

                d.  Test result.

                e.  Action taken on failing tests.

                f.  Lot size and location and adjusted contract price
                    when statistical acceptance procedures are specified
                    or when provisions allow for reduced payment.

            vi. Maintains a file of test reports and certifications.

            vii. Informs the contractor of deficiencies so corrections
                 can be made and retesting performed prior to covering
                 any substandard work with additional material.

            viii. Documents quantities of materials used on the project
                  by actual measurements and computations in a field
                  notebook or computer printouts retained in a folder.
                  For materials paid for on a weight basis, a summary of
                  the material placed each day should be kept in the
                  field notebook. The notebook and/or computer
                  printouts, supported by the original set of weigh
                  tickets, is the basis for payment.

            ix. Maintains a set of working drawings on the job site that
                can be used to prepare "as-built" drawings.

            x.  Reviews payment requests from the contractor.

            xi. Maintains a diary that should contain daily entries made
                and signed by the resident engineer. Each entry should
                include the following, plus any additional pertinent
                data:

                a.  Date and weather conditions.

                b.  Names of important visitors.

                c.  Construction work in progress and location.

                d.  Size of contractor's work force and equipment in
                    use.

                e.  Number of hours worked per day for contractor and
                    subcontractors.

                f.  The substance of important conversations with the
                    contractor about conduct, progress, changes, test
                    results, interpretations of specifications, or other
                    details.

            xii. Submits copies of FAA Form 5370-1, *Construction
                 Progress and Inspection Report*, or equivalent form to
                 the appropriate FAA Airports Division/District/Field
                 Office upon request.

7.  **FAA PROJECT MANAGER'S RESPONSIBILITIES.** The FAA project manager
    has the responsibility to monitor the project to ensure the terms
    and conditions of the grant agreement are met, to maintain a broad
    overview of the construction to be reasonably certain the work is
    accomplished in accordance with the plans and specifications, and to
    evaluate the adequacy of the sponsor's construction inspection. FAA
    project oversight does not relieve the sponsor's responsibility of
    ensuring adequate supervision and inspection during all stages of
    the work and ensuring the work is in conformance with the plans and
    specifications.

8.  **COMMENTS OR SUGGESTIONS.** Comments or suggestions for improving
    this AC should be sent to---

> Manager, Airport Engineering Division

Federal Aviation Administration

> ATTN: AAS-100
>
> 800 Independence Avenue, SW
>
> Washington, DC 20591

9.  **COPIES OF THIS AC.** The Office of Airport Safety and Standards is
    in the process of making ACs available to the public through the
    Internet. These ACs can be found on the Federal Aviation
    Administration (FAA) website at
    http://www.faa.gov/airports_airtraffic/airports/
    resources/advisory_circulars/.

![](media/image2.png){width="2.5881944444444445in"
height="0.6041666666666666in"}

David L. Bennett

Director of Airport Safety and Standards