# STC SA2-56

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Signature Flight Support Corporation, United States
- Description: The landing light mounting in each outer wing panel leading edge altered
- Applied: December 7, 1956
- Status date: August 31, 2000
- Product: Aircraft, Large Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-618](https://openairdocs.org/tcds/A-618), [TCDS A-669](https://openairdocs.org/tcds/A-669)
- Certificate PDF: https://openairdocs.org/files/sha256/29/10/2910173b5db48cda83fa7b3e8f92dd946f20ceba06640a9e35f13bb0b66951ae
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/25AA0F16E8C32CAA85256CC10083D4AC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA2-56

## ADs that name it (0)

None.

## Approved models (14)

- The Boeing Company DC3-G102 ([TCDS A-618](https://openairdocs.org/tcds/A-618))
- The Boeing Company DC3-G102A ([TCDS A-618](https://openairdocs.org/tcds/A-618))
- The Boeing Company DC3-G103A ([TCDS A-618](https://openairdocs.org/tcds/A-618))
- The Boeing Company DC3-G202A ([TCDS A-618](https://openairdocs.org/tcds/A-618))
- The Boeing Company DC3A-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-S1CG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-SC3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3A-SCG ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-R-1830-90C ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-S1C3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-S4C4G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3C-SC3G ([TCDS A-669](https://openairdocs.org/tcds/A-669))
- The Boeing Company DC3D-R-1830-90C ([TCDS A-669](https://openairdocs.org/tcds/A-669))

## 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.

pepartmeni nf ^transportation - ,3lfe&eral JXirtatum .AimmttBtratton itpplemetttal (Eerttftcate SA2-56 signature Flight Support Corporation, a Delaware Corporation 7511 Lemmon Avenue, Hangar C Dallas, TX 75209 Bulletin 7A of the Bureau of Air commerce A618, 669 McDonnell Douglas DC-3 Ae r O The landing light mounting in each outer wing panel leading edge altered as necessary to mount a G.E. sealed beam 600 watt light, P/N 4559, replacing the original landing light unit. The mounting structure altered as shown on EAS Dwg. #352558 as dated Oct. 17, 1956, or as Change A dated 11/19/59. The circuit shown on EA5 Dwg. #352355 dated 11/6/56, Change A dated 12/7/56.

Compatibility of this modification with other previously approved modifications must be determined by the installer.

.• December 07, 1956 April 08, 1959 Rev. 3 .- 6/1/92; 12/21/98; 8/31/00 .- 12/3/59; 4/10/81; 4/19/92 (Signature) JL A S. Frances Cox * Manager, Special Certification Office, Southwest Region Any fltfratlon ot thJs cvrtitlcttf Is punlahabJe by J fin* of not rxcffdlng 11.000, or inprlJonment not euc^edlnfl 3 years. °j- both.

Fora 6110-2(10-68) Pag« 1 of 2 ThJfl ceitltlctt* My b» trfnfffrrrd in jt^ordjncr* with FAfl 21.47-

INSFRUC1 IONS: The transfer endorsement hclow may he used lo notify the appropriate h'AA Regional Office of the transfer of ihis Supplemental Type Geminate.

The l-"AA v.\\\ rrmui- the- rrrtifirair in the name of the transferee and forward it lo him

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certih'cate Number to (Name of transferee) (Address nj transferee) /Number andttrett) (City. Stall, and ZJF todi) from (Name of grantor) (Punt or type) (Address of grantor) r and ilieetI (City, Slalr, anil -J/P code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):_ C FAA AC 69-SS38

## Every issue (1)

- August 31, 2000: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/29/10/2910173b5db48cda83fa7b3e8f92dd946f20ceba06640a9e35f13bb0b66951ae)

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