**FIELD APPROVAL APPLICATION\
STANDARD DATA PACKAGE**

**SPOKANE FLIGHT STANDARDS DISTRICT OFFICE\
JANUARY 2004**

6133 E. Rutter Avenue\
Spokane, WA 99212\
509-532-2340\
800-341-2623

**INTRODUCTION**

This information package has been assembled to assist
aircraft/maintenance personnel in standardizing the procedure for the
application for a "field approval."

In the process of altering an aircraft, the alteration must conform to
previously approved data. This data may be in the form of information
developed by the aircraft manufacturer, information developed by
individuals for the use of others (the Supplemental Type Certificate
(STC)) or by the applicant and approved by the FAA or its
representatives for one specific aircraft.

Order 8300.10 Airworthiness Inspector's Handbook Vol.2 Chap 1: specifies
those types of alterations that may be approved, under specific
conditions, for field approval. This reference also lists those types of
alterations that must either be evaluated by the FAA engineering
department or the STC process.

Order 8110.45 Use Of Data Approved By Designated Engineering
Representatives To Support Major Alterations: describes how data
approved by Designated Engineering Representatives (DERs) may be used to
support major alterations.

Order 8110.46 Major Alterations That Will Require Supplemental Type
Certificates: gives further assistance in selecting whether the services
of a DER or the a "engineering-coordinated field approval would be
appropriate to a particular alteration project.

Advisary Circular AC43-FLD (Draft) may be found on our web site:
**[(link to ac43-210.pdf)]{.underline}** This is a draft document. It
has good information regarding the "Standard Data Package" (SDP), which
is comprised of the Field Approval Checklist, copies of any data
describing the alteration, and FAA Form 337. While the SDP is not a
regulatory requirement, it is to become the most effective way to make
application for a field approval.

**INSTRUCTIONS FOR COMPLETING THE FIELD APPROVAL\
CHECKLIST FORM**

The person requesting the field approval may use this form to provide
the requested data, forms, descriptive items, and other information. If
this form is not used, an equivalent method for presenting the
information and data may be used. The checklist form (or equivalent),
its attachments, Federal Aviation Administration (FAA) Form 337, Major
Repair and Alteration (Airframe, Powerplant, Propeller, or Appliance),
and the data make up the standard data package (SDP). The following
instructions apply to corresponding items 1 through 12 of the form as
illustrated in this appendix.

**Item 1---Aircraft.** Information to complete the Make, Model, and
Serial Number blocks will be found on the aircraft manufacturer's
identification plate. The Registration Number is the same as shown on AC
Form 8050-3, Certificate of Aircraft Registration (the N number).

> Note: Only U.S.-registered aircraft are eligible for field approvals.

**Item 2---Aircraft Owner.** Enter the aircraft owner's name, address,
and telephone number.

**Item 3---Type of Product and Certification Basis.** On the upper line,
enter a check mark in the appropriate box to identify the item being
approved. If the item is not one of the three listed, check the Other
box and enter the product's description in the space provided. On the
bottom line, check the box that identifies how your aircraft or product
was certificated. If you don't know this information, you can find it on
the Type Certificate Data Sheet (TCDS) for your aircraft or engine. On
the TCDS, look in the section titled Certification Basis.

**Item 4---Brief Description of Project.** Using the space provided,
enter a short summary of the proposed alteration or repair, e.g.,
"Installing a GPS in the instrument panel above the right yoke." If
additional space is needed, attach a continuation page and make a note
of that on the form in this area.

**Item 5---Schedule for Completion of Project.** On the first line,
enter the date when you need the field approval. On the second line,
enter the date when you plan to start the work, and on the last line,
enter the date when you expect to have the work done.

**Item 6---Who Will Perform the Alteration or Repair?** On the top line,
enter the name of the certificated mechanic who will be doing the work.
If a repair station is doing the work, leave the mechanic's name blank
and enter the name of the repair station. On the second line, enter the
mechanic's A&P certificate number, or if a repair station is doing the
work, its certificate number. Also enter a contact name if you are using
a repair station. If the inspector doing the approval has a question and
you are not available, this will make it easier for him/her her to find
someone knowledgeable about the project. On the third line, give the
telephone number and fax number for either the mechanic doing the work,
or the repair station. On the bottom line, enter where the work will be
done. This should be as complete as possible.

**Item 7---Designees (DARs and DERs).** If you are working with any
Designated Engineering Representatives (DER) or Designated Airworthiness
Representatives (DAR) for this project, include their names and
telephone numbers in case the inspector needs to contact them for
additional information or clarification. DERs have limitations to their
authorization(s). If you are working with a designee, check with him or
her to make sure that the work you want the designee to do is within the
scope of his or her authorization.

**Item 8---Compliance Statement and Compliance Checklist.** Before
completing the alteration or repair to your aircraft, be aware that
after it has been altered or repaired it must still meet its
certification basis. In this section you include the proof (data) that
it still does. Your compliance statement should explain how your
aircraft still meets its certification basis. For instance, if you want
to modify the wheels of your small airplane, you would need to ensure
that the altered wheels still conform to section 23.731. The compliance
checklist will list each affected Federal Aviation Regulation (FAR) or
Civil Air Regulation (CAR) and indicate how compliance was shown. This
checklist is created by the person doing the alteration or repair and
should address each section of the FAR/CAR applicable to the project.
Appendix 2 has a sample compliance checklist format.

**Item 9---Previous Alterations or Repairs that May be Affected by This
Alteration.** Look at the aircraft and review its records to determine
if there are any modifications, Supplemental Type Certificates (STC),
repairs, or alterations that could cause a problem or conflict with the
proposed alteration or repair. If an FAA Form 337 was completed for any
repair or alteration that might be affected, include it. If a logbook
entry was made concerning the work done, make a copy of that entry and
include it in your package. Photographs and drawings of previous
alterations or repairs that might be a factor can also be very helpful.

**Item 10---Instructions for Continued Airworthiness (ICA).** In this
attachment, describe how you will keep the altered or repaired part of
the aircraft airworthy. This might include inspections that need to be
done each 100 hours or during the annual inspection. These should be
specific instructions that include what should be looked at and minimum
or maximum measurements of parts for wear or deterioration.
Troubleshooting, functional checks, installation and removal procedures,
and servicing requirements, such as fluid change intervals or
lubrication schedules, are also items that would be included. Figure 1
provides guidance and a sample checklist for creating ICAs.

**Item 11---Airplane Flight Manual Supplement (AFMS).** If you have an
AFMS for your alteration, include a copy of it. Guidance for creating an
AFMS is available in AC 23-8, Flight Test Guide for Certification of
Part 23 Airplanes, as amended. Appendix 5 of AC 23-8 has a sample format
that can be used. AFMS must be submitted with the data package but are
approved by the Aircraft Certification Office. The FSDO will coordinate
this work.

**Item 12---Data Attached.** A list of the data that is commonly
included in the SDP is displayed in Block 12. If the data you are
attaching is included on this list, check the appropriate box. If you
have data or information that is not included in this list, check the
box labeled Other and enter a short description of what you are
including in the space provided.

**Item 13---FAA Use Only.** Don't write or mark in this area, it is for
FAA use only.

+------------+-------------------------+-------------------------------+
| FIELD      |                         |                               |
| APPROVAL   |                         |                               |
| CHECKLIST  |                         |                               |
|            |                         |                               |
| Ins        |                         |                               |
| tructions: |                         |                               |
| Print or   |                         |                               |
| type all   |                         |                               |
| entries.   |                         |                               |
| This       |                         |                               |
| i          |                         |                               |
| nformation |                         |                               |
| should be  |                         |                               |
| as         |                         |                               |
| complete   |                         |                               |
| as         |                         |                               |
| possible   |                         |                               |
| prior to   |                         |                               |
| your       |                         |                               |
| initial    |                         |                               |
| discussion |                         |                               |
| with the   |                         |                               |
|            |                         |                               |
| FAA.       |                         |                               |
+------------+-------------------------+-------------------------------+
| > 1\.      | > Make                  | > Model                       |
| >          |                         |                               |
|  Aŭ\~craft |                         |                               |
+------------+-------------------------+-------------------------------+
|            | > Registration Number   | > Serial Number               |
|            |                         |                               |
|            | N                       |                               |
+------------+-------------------------+-------------------------------+
| > 2\.      | > Name                  | > Address/Telephone Number    |
| > Owner    |                         |                               |
+------------+-------------------------+-------------------------------+
| > 3\. Type | > Certifıcahon Basis    |                               |
| > of       |                         |                               |
| > Product  |                         |                               |
| > and      |                         |                               |
| >          |                         |                               |
| > Type     |                         |                               |
| > C        |                         |                               |
| ertifıcate |                         |                               |
| > Number   |                         |                               |
+------------+-------------------------+-------------------------------+
|            |                         |                               |
+------------+-------------------------+-------------------------------+
| > 0        |                         |                               |
| > AIRFRAME |                         |                               |
| > 0 ENGINE |                         |                               |
| > 0        |                         |                               |
| >          |                         |                               |
|  APPLIANCE |                         |                               |
| > 0 OTHER  |                         |                               |
+------------+-------------------------+-------------------------------+
| > o Part   |                         |                               |
| > 23 o     |                         |                               |
| > Part 25  |                         |                               |
| > o Part   |                         |                               |
| > 27 o     |                         |                               |
| > Part 29  |                         |                               |
| > o Part   |                         |                               |
| > 31 o     |                         |                               |
| > Part 33  |                         |                               |
| > o CAR 3  |                         |                               |
| > o CAR    |                         |                               |
| > 4(b) o   |                         |                               |
| > CAR 6 o  |                         |                               |
| > CAR 7    |                         |                               |
| >          |                         |                               |
| > o CAR 8  |                         |                               |
| > o CAR 13 |                         |                               |
+------------+-------------------------+-------------------------------+
| > 4\. Bňef |                         |                               |
| >          |                         |                               |
| Descriphon |                         |                               |
| > of       |                         |                               |
| > Project  |                         |                               |
+------------+-------------------------+-------------------------------+
| > (attach  |                         |                               |
| >          |                         |                               |
| additional |                         |                               |
| > pages if |                         |                               |
| >          |                         |                               |
|  required) |                         |                               |
+------------+-------------------------+-------------------------------+
| > 5\.      |                         |                               |
| > Schedule |                         |                               |
| > for      |                         |                               |
| >          |                         |                               |
|  Complehon |                         |                               |
| > of       |                         |                               |
| > Project  |                         |                               |
| >          |                         |                               |
| > Date     |                         |                               |
| > when     |                         |                               |
| > fıeld    |                         |                               |
| > approval |                         |                               |
| > is       |                         |                               |
| > needed:  |                         |                               |
+------------+-------------------------+-------------------------------+
| >          |                         |                               |
|  Projected |                         |                               |
| >          |                         |                               |
| completion |                         |                               |
| > date for |                         |                               |
| > a        |                         |                               |
| lteration: |                         |                               |
+------------+-------------------------+-------------------------------+
| > Date     |                         |                               |
| > aircraft |                         |                               |
| > will be  |                         |                               |
| >          |                         |                               |
|  available |                         |                               |
| > for      |                         |                               |
| > i        |                         |                               |
| nspection: |                         |                               |
+------------+-------------------------+-------------------------------+
|            |                         |                               |
+------------+-------------------------+-------------------------------+
| > 6\. Who  |                         |                               |
| > Will     |                         |                               |
| > Perform  |                         |                               |
| > the      |                         |                               |
| >          |                         |                               |
|  Alterahon |                         |                               |
| > or       |                         |                               |
| > Repair?  |                         |                               |
| >          |                         |                               |
| > M        |                         |                               |
| echanic\'s |                         |                               |
| > name: or |                         |                               |
| > Repair   |                         |                               |
| > station: |                         |                               |
+------------+-------------------------+-------------------------------+
| > C        |                         |                               |
| ertifıcate |                         |                               |
| > no:      |                         |                               |
| > Contact  |                         |                               |
| > Person:  |                         |                               |
+------------+-------------------------+-------------------------------+
| >          |                         |                               |
|  Telephone |                         |                               |
| > number:  |                         |                               |
| > Fa1c     |                         |                               |
| > number:  |                         |                               |
+------------+-------------------------+-------------------------------+
| > Location |                         |                               |
| > where    |                         |                               |
| > alterat  |                         |                               |
| ion/repair |                         |                               |
| > will be  |                         |                               |
| > acc      |                         |                               |
| omplished: |                         |                               |
+------------+-------------------------+-------------------------------+
|            |                         |                               |
+------------+-------------------------+-------------------------------+
| > 7\.      |                         |                               |
| >          |                         |                               |
|  Designees |                         |                               |
| > (DARs    |                         |                               |
| > and      |                         |                               |
| > DERs) 0  |                         |                               |
| > None     |                         |                               |
| >          |                         |                               |
| > Names    |                         |                               |
| > and      |                         |                               |
| >          |                         |                               |
|  telephone |                         |                               |
| > numbers  |                         |                               |
| > of the   |                         |                               |
| >          |                         |                               |
| Designated |                         |                               |
| > E        |                         |                               |
| ngineering |                         |                               |
| > Repres   |                         |                               |
| entatives, |                         |                               |
| > (DER)    |                         |                               |
| > and/or   |                         |                               |
| >          |                         |                               |
| Designated |                         |                               |
| > Air      |                         |                               |
| worthiness |                         |                               |
| >          |                         |                               |
| > Repre    |                         |                               |
| sentatives |                         |                               |
| > (DAR)    |                         |                               |
| > who are  |                         |                               |
| > helping  |                         |                               |
| > with the |                         |                               |
| > project: |                         |                               |
| >          |                         |                               |
| > Name:    |                         |                               |
| >          |                         |                               |
|  Telephone |                         |                               |
| > number:  |                         |                               |
+------------+-------------------------+-------------------------------+
| > Name:    |                         |                               |
| >          |                         |                               |
|  Telephone |                         |                               |
| > number:  |                         |                               |
+------------+-------------------------+-------------------------------+
|            |                         |                               |
+------------+-------------------------+-------------------------------+

+---+----------------------+-----+-------------------------------------+
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+---+----------------------+-----+-------------------------------------+
| > |                      |     | (See Compliance Checklist on page   |
|   |                      |     | 5)                                  |
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+---+----------------------+-----+-------------------------------------+
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|   |                      |     |                                     |
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| n |                      |     |                                     |
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|   |                      |     |                                     |
| p |                      |     |                                     |
| a |                      |     |                                     |
| c |                      |     |                                     |
| k |                      |     |                                     |
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| n |                      |     |                                     |
| ) |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| 1 |                      |     |                                     |
| 0 |                      |     |                                     |
| \ |                      |     |                                     |
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| l |                      |     |                                     |
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| > |                      |     |                                     |
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| m |                      |     |                                     |
| > |                      |     |                                     |
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| 3 |                      |     |                                     |
| 3 |                      |     |                                     |
| 7 |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| 1 |                      |     |                                     |
| 1 |                      |     |                                     |
| \ |                      |     |                                     |
| . |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| A |                      |     |                                     |
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| c |                      |     |                                     |
| r |                      |     |                                     |
| a |                      |     |                                     |
| f |                      |     |                                     |
| t |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| F |                      |     |                                     |
| l |                      |     |                                     |
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| h |                      |     |                                     |
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| > |                      |     |                                     |
|   |                      |     |                                     |
| M |                      |     |                                     |
| a |                      |     |                                     |
| n |                      |     |                                     |
| u |                      |     |                                     |
| a |                      |     |                                     |
| l |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| S |                      |     |                                     |
| u |                      |     |                                     |
| p |                      |     |                                     |
| p |                      |     |                                     |
| l |                      |     |                                     |
| e |                      |     |                                     |
| m |                      |     |                                     |
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| n |                      |     |                                     |
| t |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
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| A |                      |     |                                     |
| F |                      |     |                                     |
| M |                      |     |                                     |
| S |                      |     |                                     |
| ) |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      | 0   | > If yes, attach a copy.            |
|   |                      | No  |                                     |
| D |                      |     |                                     |
| o |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| y |                      |     |                                     |
| o |                      |     |                                     |
| u |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| h |                      |     |                                     |
| a |                      |     |                                     |
| v |                      |     |                                     |
| e |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| a |                      |     |                                     |
| n |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| A |                      |     |                                     |
| F |                      |     |                                     |
| M |                      |     |                                     |
| S |                      |     |                                     |
| ? |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| 0 |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| Y |                      |     |                                     |
| e |                      |     |                                     |
| s |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| 1 |                      |     |                                     |
| 2 |                      |     |                                     |
| \ |                      |     |                                     |
| . |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| D |                      |     |                                     |
| a |                      |     |                                     |
| t |                      |     |                                     |
| a |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| A |                      |     |                                     |
| t |                      |     |                                     |
| t |                      |     |                                     |
| a |                      |     |                                     |
| c |                      |     |                                     |
| h |                      |     |                                     |
| e |                      |     |                                     |
| d |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > | Proposed FAA Form    |     | 0 Other                             |
|   | 337                  |     |                                     |
| 0 |                      |     |                                     |
| > | Description of       |     |                                     |
| > | alteration,          |     |                                     |
|   | including ICA        |     |                                     |
| 0 |                      |     |                                     |
| > | Drawings,            |     |                                     |
| > | schematics, and      |     |                                     |
|   | diagrams             |     |                                     |
| 0 |                      |     |                                     |
| > | Materiallist         |     |                                     |
| > |                      |     |                                     |
|   | Processes            |     |                                     |
| 0 |                      |     |                                     |
| > | Specifıcations       |     |                                     |
| > |                      |     |                                     |
|   | Previous fıeld       |     |                                     |
| 0 | approvals            |     |                                     |
| > |                      |     |                                     |
| > | FAA Form(s) 8110-3   |     |                                     |
|   |                      |     |                                     |
| 0 | Serviceable tags     |     |                                     |
| > |                      |     |                                     |
| > | Placards             |     |                                     |
|   |                      |     |                                     |
| 0 | Test data and/or     |     |                                     |
| > | flight test data     |     |                                     |
| > |                      |     |                                     |
|   | Load analysis        |     |                                     |
| 0 | (electrical and/or   |     |                                     |
| > | structural)          |     |                                     |
| > |                      |     |                                     |
|   | Weight & Balance     |     |                                     |
| 0 | Report               |     |                                     |
| > |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| 0 |                      |     |                                     |
| > |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| 0 |                      |     |                                     |
| > |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| 0 |                      |     |                                     |
| > |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| 0 |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
|   |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| 1 |                      |     |                                     |
| 3 |                      |     |                                     |
| \ |                      |     |                                     |
| . |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| F |                      |     |                                     |
| A |                      |     |                                     |
| A |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| U |                      |     |                                     |
| s |                      |     |                                     |
| e |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| O |                      |     |                                     |
| n |                      |     |                                     |
| l |                      |     |                                     |
| y |                      |     |                                     |
| > |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| D |                      |     |                                     |
| a |                      |     |                                     |
| t |                      |     |                                     |
| e |                      |     |                                     |
| : |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| A |                      |     |                                     |
| s |                      |     |                                     |
| s |                      |     |                                     |
| i |                      |     |                                     |
| g |                      |     |                                     |
| n |                      |     |                                     |
| e |                      |     |                                     |
| d |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| i |                      |     |                                     |
| n |                      |     |                                     |
| s |                      |     |                                     |
| p |                      |     |                                     |
| e |                      |     |                                     |
| c |                      |     |                                     |
| t |                      |     |                                     |
| o |                      |     |                                     |
| r |                      |     |                                     |
| : |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| F |                      |     |                                     |
| A |                      |     |                                     |
| A |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| o |                      |     |                                     |
| f |                      |     |                                     |
| f |                      |     |                                     |
| ı |                      |     |                                     |
| c |                      |     |                                     |
| e |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+
| > |                      |     |                                     |
|   |                      |     |                                     |
| A |                      |     |                                     |
| d |                      |     |                                     |
| d |                      |     |                                     |
| i |                      |     |                                     |
| t |                      |     |                                     |
| i |                      |     |                                     |
| o |                      |     |                                     |
| n |                      |     |                                     |
| a |                      |     |                                     |
| l |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| i |                      |     |                                     |
| n |                      |     |                                     |
| f |                      |     |                                     |
| o |                      |     |                                     |
| r |                      |     |                                     |
| m |                      |     |                                     |
| a |                      |     |                                     |
| t |                      |     |                                     |
| i |                      |     |                                     |
| o |                      |     |                                     |
| n |                      |     |                                     |
| > |                      |     |                                     |
|   |                      |     |                                     |
| r |                      |     |                                     |
| e |                      |     |                                     |
| q |                      |     |                                     |
| u |                      |     |                                     |
| i |                      |     |                                     |
| r |                      |     |                                     |
| e |                      |     |                                     |
| d |                      |     |                                     |
| : |                      |     |                                     |
+---+----------------------+-----+-------------------------------------+

**INSTRUCTIONS FOR COMPLIANCE CHECKLIST**

**The purpose of the compliance checklist is to document which
regulations are applicable to the field approval requested, and how
compliance with those regulations was shown. Instructions for completing
this sample compliance checklist are as follows:**

**1. 14 CFR Part/CAR Paragraph.** Specific applicable regulations may be
listed by number, e.g., 14 CFR part 23, section 23.1353.

**2. Subject.** The subject or title of the 14 CFR part/CAR applicable
paragraphs, e.g., Storage battery design and installation.

**3. Method of Compliance.** The method of compliance may include design
drawings (D), analyses (A), tests (T), or other methods (O). Some
compliance checklists simply list the letter corresponding to the
applicable methods of compliance. Other compliance checklists reference
specific data by title or number. The applicant and the FAA inspector
should agree upon the format.

**4. Documentation Reference.** List the documentation (test report
number, analysis report number, and so forth) that demonstrated
compliance to the subject 14 CFR part or CAR paragraph.

> COMPLIANCE CHECKLIST

+-----------------+----------------+----------------+-----------------+
| 14 CFR Part/CAR | Subject        | Method of      | Documentation   |
|                 |                |                |                 |
| Paragraph       |                | Compliance     | Reference       |
+-----------------+----------------+----------------+-----------------+
|                 |                |                |                 |
+-----------------+----------------+----------------+-----------------+
|                 |                |                |                 |
+-----------------+----------------+----------------+-----------------+
|                 |                |                |                 |
+-----------------+----------------+----------------+-----------------+
|                 |                |                |                 |
+-----------------+----------------+----------------+-----------------+

> INSTRUCTIONS FOR CONTINUED AIRWORTHINESS (ICA) CHECKLIST
>
> A/C Make: S/N:
>
> Revision:
>
> System:
>
> INSTRUCTIONS: Review each item for applicability. If the item does not
> apply, mark N/A. Include those items that do apply in Block 8 of Form
> 337 as ICAs, or if extensive, use separate sheet and attach to Form
> 337.

+--------+-------------------------------------------------------+----+
| Item   | Subject                                               | Ck |
+--------+-------------------------------------------------------+----+
| 1\.    | > Introduction: Briefly describes the aircraft,       |    |
|        | > engine, propeller, or component that has            |    |
|        | >                                                     |    |
|        | > been altered. Include any other information         |    |
|        | > regarding the content, scope, purpose,              |    |
|        | >                                                     |    |
|        | > arrangement, applicability, definitions,            |    |
|        | > abbreviations, precautions, units of measurement,   |    |
|        | >                                                     |    |
|        | > referenced publications, and distribution of the    |    |
|        | > ICA, as applicable.                                 |    |
+--------+-------------------------------------------------------+----+
| 2\.    | > Description: Of the major alteration and its        |    |
|        | > functions, including an explanation of its          |    |
|        | >                                                     |    |
|        | > interface with other systems, if any.               |    |
+--------+-------------------------------------------------------+----+
| 3\.    | > Control, operation information: Or special          |    |
|        | > procedures, if any.                                 |    |
+--------+-------------------------------------------------------+----+
| 4\.    | > Servicing information: Such as types of fluids      |    |
|        | > used, servicing points, and location of             |    |
|        | >                                                     |    |
|        | > access panels, as appropriate.                      |    |
+--------+-------------------------------------------------------+----+
| 5\.    | > Maintenance instructions: Such as recommended       |    |
|        | > inspection/maintenance periods in                   |    |
|        | >                                                     |    |
|        | > which each of the major alteration components are   |    |
|        | > inspected, cleaned, lubricated,                     |    |
|        | >                                                     |    |
|        | > adjusted, and tested, including applicable wear     |    |
|        | > tolerances and work recommended at each             |    |
|        | >                                                     |    |
|        | > scheduled maintenance period. This section can      |    |
|        | > refer to the manufacturers\' instructions           |    |
|        | >                                                     |    |
|        | > for the equipment installed where appropriate       |    |
|        | > (e.g., functional checks, repairs,                  |    |
|        | >                                                     |    |
|        | > inspections). It should also include any special    |    |
|        | > notes, cautions, or warnings, as applicable.        |    |
+--------+-------------------------------------------------------+----+
| 6\.    | > Troubleshooting information: Describes probable     |    |
|        | > malfunctions, how to recognize those                |    |
|        | >                                                     |    |
|        | > malfunctions, and the remedial actions to take.     |    |
+--------+-------------------------------------------------------+----+
| 7\.    | > Removal and replacement information: Describes the  |    |
|        | > order and method of removing                        |    |
|        | >                                                     |    |
|        | > and replacing products or parts, and any necessary  |    |
|        | > precautions. This section should also               |    |
|        | >                                                     |    |
|        | > describe or refer to manufacturer\'s instructions   |    |
|        | > to make required tests, checks, alignnıent,         |    |
|        | >                                                     |    |
|        | > calibrations, center of gravity changes, lifting,   |    |
|        | > or shoring, etc., if any.                           |    |
+--------+-------------------------------------------------------+----+
| 8\.    | > Diagrams: Of access plates and information, if      |    |
|        | > needed, to gain access for inspection.              |    |
+--------+-------------------------------------------------------+----+
| 9\.    | > Special inspection requirements: Such as X-ray,     |    |
|        | > ultrasonic testing, or magnetic particle            |    |
|        | >                                                     |    |
|        | > inspection, if required.                            |    |
+--------+-------------------------------------------------------+----+
| 10\.   | > Application of protective treatments: To the        |    |
|        | > affected area after inspection and/or               |    |
|        | >                                                     |    |
|        | > maintenance, if any.                                |    |
+--------+-------------------------------------------------------+----+

+--------+-------------------------------------------------------+----+
| **     | **Subject**                                           | ** |
| Item** |                                                       | Ck |
|        |                                                       | ** |
+--------+-------------------------------------------------------+----+
| 11\.   | > **Data:** Relative to structural fasteners such as  |    |
|        | > type, torque, and installation requirements,        |    |
|        | >                                                     |    |
|        | > if any.                                             |    |
+--------+-------------------------------------------------------+----+
| 12\.   | > **List of special tools:** Special tools that are   |    |
|        | > required, if any.                                   |    |
+--------+-------------------------------------------------------+----+
| 13\.   | > **For commuter category aircraft:** Provide the     |    |
|        | > following additional information, as                |    |
|        | >                                                     |    |
|        | > applicable:                                         |    |
|        | >                                                     |    |
|        | > A. Electrical loads                                 |    |
|        | >                                                     |    |
|        | > B. Methods of balancing flight controls             |    |
|        | >                                                     |    |
|        | > C. Identification of primary and secondary          |    |
|        | > structures                                          |    |
|        | >                                                     |    |
|        | > D. Special repair methods applicable to the         |    |
|        | > aircraft                                            |    |
+--------+-------------------------------------------------------+----+
| 14\.   | > **Recommended overhaul periods:** Required to be    |    |
|        | > noted on the ICA when an                            |    |
|        | >                                                     |    |
|        | > overhaul period has been established by the         |    |
|        | > manufacturer of a component or                      |    |
|        | >                                                     |    |
|        | > equipment. If no overhaul period exists, the ICA    |    |
|        | > should state for item 14, "No                       |    |
|        | >                                                     |    |
|        | > additional overhaul time limitations."              |    |
+--------+-------------------------------------------------------+----+
| 15\.   | > **Airworthiness limitation section:** Includes any  |    |
|        | > "approved" airworthiness                            |    |
|        | >                                                     |    |
|        | > limitations identified by the manufacturer or FAA   |    |
|        | > Type Certificate Holding Office                     |    |
|        | >                                                     |    |
|        | > (e.g., An STC incorporated in a larger field        |    |
|        | > approved major alteration may have an               |    |
|        | >                                                     |    |
|        | > airworthiness limitation). The FAA inspector should |    |
|        | > not establish, alter, or cancel                     |    |
|        | >                                                     |    |
|        | > airworthiness limitations without coordinating with |    |
|        | > the appropriate FAA Type                            |    |
|        | >                                                     |    |
|        | > Certificate Holding Office. If no changes are made  |    |
|        | > to the airworthiness                                |    |
|        | >                                                     |    |
|        | > limitations, the ICA should state for item 15, "No  |    |
|        | > additional airworthiness                            |    |
|        | >                                                     |    |
|        | > limitations" or "Not Applicable."                   |    |
+--------+-------------------------------------------------------+----+
| 16\.   | > **Revision:** Includes information on how to revise |    |
|        | > the ICA. For example, a letter will be submitted    |    |
|        | >                                                     |    |
|        | > to the local FAA Office with a copy of the revised  |    |
|        | > FAA Form 337 and revised ICA. The FAA               |    |
|        | >                                                     |    |
|        | > inspector accepts the change by signing block 3 and |    |
|        | > including the following statement, "The             |    |
|        | >                                                     |    |
|        | > attached revised/new Instructions for Continued     |    |
|        | > Airworthiness (date ) for the above                 |    |
+--------+-------------------------------------------------------+----+
|        | > aircraft or component major alteration have been    |    |
|        | > accepted by the FAA, superseding the                |    |
|        | >                                                     |    |
|        | > Instructions for Continued Airworthiness (date )."  |    |
|        | > After the revision has been                         |    |
+--------+-------------------------------------------------------+----+
|        | > accepted, a maintenance record entry will be made,  |    |
|        | > identifying the revision, its location, and date    |    |
|        | >                                                     |    |
|        | > on the FAA Form 337.                                |    |
+--------+-------------------------------------------------------+----+

**INSTRUCTIONS FOR COMPLETION OF FORM 337**

The person who performs or supervises a major alteration should prepare
the FAA Form 337. The form is executed at least in duplicate and is used
to record major alterations made to an aircraft, powerplant, propeller
or appliance. The following instructions apply to the corresponding
items 1 through 8 of the Form 337.

**Item 1 -- Aircraft:** Information to complete the "make," "model," and
"serial number" blocks will be found on the aircraft manufacturer's
identification (data) plate. The "Nationality (N) and registration
number is the same as shown on Aircraft Registration Form.

**Item 2 -- Owner:** Enter the owner's complete name as shown on the
Aircraft Registration Form.

**Item 3 -- For FAA Use Only:** Approval of an alteration may be
indicated in Item 3 when the FAA determines that the data to be used in
performing a major alteration complies with accepted industry practices
and all applicable FAR. Approval is indicated by the following or
similar entry: "The data identified herein complies with the applicable
airworthiness requirements and is approved for the above described
aircraft, subject to conformity inspection by a person authorized in FAR
43, Section 43.7

**Item 4 -- Unit Identification:** The information blocks under Item 4
are used to identify the airframe, powerplant, propeller, or appliance
being altered. It is only necessary to complete the blocks for the unit
to be altered.

**Item 5 -- Type:** Enter a check or X in the appropriate block to
indicate the unit was altered. **Item 6 -- Conformity Statement:**

**"A" -- Agency's Name and Address:** Enter the name of the mechanic or
repair station who will accomplish the alteration. Mechanics should
enter either their permanent mailing address or their place of business
address. Repair stations should use their business name and address.

**"B" -- Kind of Agency:** Mark the appropriate box to indicate either
Mechanic or repair station.

**"C" -- Certificate Number:** Mechanics should enter their A&P number
in this block. Repair stations should enter their CRS number and the
rating(s) under which the work will be performed.

**"D" -- Compliance Statement:** This space includes the statement
certifying that the work has been done in accordance with the
information included on the reverse side of the Form 337. When the work
is done, the mechanic doing or supervising the alteration will date and
sign the appropriate blocks.

**Item 7 -- Approval for Return to Service:** This portion of the form
is used to indicate approval or rejection of the alteration of the unit
involved and to identify the person or agency making the airworthiness
inspection. Check the "approved" or "rejected" box to indicate the
finding. Additionally, check the appropriate box to indicate who made
the finding. The authorized individual who made the finding will date,
sign and enter the appropriate certificate number.

**Item 8 -- Description of Work Accomplished.** A clear, concise, and
legible statement describing the work accomplished should be entered in
this block. The description must include sufficient detail so that a
typical mechanic who has never seen the unit herein identified could
duplicate the alteration. The description must include the data used as
a basis for the field approval with references to publications such as
the AC43.13-1B, similar STCs, etc. (When referencing these sources, be
specific, i.e. give chapter, page, paragraph numbers so FAA inspector
may find the referenced material easily.)

Recording weight & balance information as well as aircraft total time in
this block, while not required, is a convenient source of information if
all other records become lost.

If additional space is needed to describe the alteration, attach
additional sheets. Place the aircraft "N" number at the upper right-hand
corner for identification.

The FAA Form 337 is not authorized for use on other than U.S. registered
aircraft.

Please go to the following website to enter data into form 337:

http://forms.faa.gov/forms/faa337.pdf

Below is a graphical view of form 337.

![](media/image1.png){width="5.752777777777778in"
height="7.819444444444445in"}

![](media/image2.png){width="5.719444444444444in"
height="7.819444444444445in"}