# STC SA3458WE

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Avcon Industries Inc, United States
- Description: Modification of fuselage to install camera window, with the option to allow unpressurized operations when the optical glass is removed and camera door is open
- Applied: February 25, 1977
- Status date: January 16, 2013
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/fd/d1/fdd161c99eb51aa44ff46a38975625b773c68006b7f72bb135d4ee40ee3d5930
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C1D9A0CCB1607E4B86257C19006C3679.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3458WE

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 421C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

This certificate issued to: Avcon Industries, Inc.

714 N. Oliver, Hangar M Newton City/County Airport Newton, KS 67114

Part 3* of the Civil Air Regulations. *Certification basis is set forth in Type Certificate Data Sheet A7CE.

Original Product - Type Certificate Number: A7CE Make: Cessna Model: 421C

Description of Type Design Change: Modification of fuselage to install camera window, with the option to allow unpressurized operations when the optical glass is removed and camera door is open. Data required:

1) Volpar Drawing List 5300, Rev B, dated June 28, 1977, or AVCON Master Drawing List, Number 5300, Rev G, dated May 7, 2012, or later FAA approved revisions, and

2) Airplane Flight Manual Supplement, Volpar Supplement No. 1, Rev A, dated July 14, 1977 or later FAA approved revisions.

1. The approval of this change in type design applies to the Cessna 421C aircraft only.

2. Compatibility of this design with previously approved modifications must be determined by the installer.

3. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Date reissued: September 17, 1999; February 25, 2004;

May 5, 2009; May 5, 2011

Date amended: January 16, 2013

Original signed by Grant Youndahl

(Signature) Grant E. Youngdahl Program Manager Wichita Aircraft Certification Office (Title)

Date of application: February 25, 1977 Date of issuance: July 14, 1977

## Every issue (5)

- January 16, 2013: Amended, Current. [certificate](https://openairdocs.org/files/sha256/fd/d1/fdd161c99eb51aa44ff46a38975625b773c68006b7f72bb135d4ee40ee3d5930)
- May 5, 2011: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/de/8f/de8fb7353a20b1202dd84b27f81267bf3e9e8ae9429f5bc910405046552b5929)
- May 5, 2009: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/63/c4/63c445bae23211c71fd81b1eb4fcf9dab84c27fad5f1cafe577a04d4262f6be5)
- February 25, 2004: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/df/cf/dfcfdc43122e725b42c1ec9ea917fdca45bda23f4f59fd836ea26cc5624dc752)
- September 17, 1999: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/e9/f1/e9f1109ac0355ab1e3166f1a3194c2a7bd12fedf11c07a0debc8de4c0f349b34)

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