# STC SA840WE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: TALCO Aviation, United States
- Description: Installation of Roto-Master (Rajay) Turbo-charged Lycoming IO-540-C4B5 or -C4C5 engines. (PA-E23-250 SN 27-2505 and up)
- Applied: November 6, 1964
- Status date: August 31, 2023
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/81/c1/81c14504efb27324eb27a1b3085a83837989935a202224881ba655f4a2656a02
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114298636220231129144345.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA840WE

## ADs that name it (2)

- [AD 2002-19-03](https://openairdocs.org/ad/2002-19-03): Crankshaft · Lycoming Engines IO-540-A1A5, IO-540-AA1A5, IO-540-AA1B5 and 81 more. Effective Sep 20, 2002. Named in the applicability
- [AD 81-19-04](https://openairdocs.org/ad/81-19-04): Hose Assembly · Rajay Hose Assemblies, 500A, 500B and 87 more. Effective Sep 17, 1981. Cited in the text

## Approved models (2)

- The New Piper Aircraft Inc. PA-23-250 (Navy UO-1) ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- The New Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

## 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.

SA840WE TALCO Aviation 3015 E. New York St, STE A2-270 Aurora, IL 60504 Part 3 the Civil Air Regulations 1A10 Piper PA-23-250 and PA-E23-250, Serial Number 27-2505 and Subsequent Installation of Roto-Master (Rajay) Turbocharged Lycoming IO-540-C4B5 or IO-540-C4C5 Engines, in accordance with FAA sealed Roto-Master (Rajay) Drawing List No. RJ0560 or later FAA approved revision.

(See continuation sheet 3 of 3) November 6, 1964 January 14, 1969; February 10, 1982; October 30, 1987; September 22, 1995; December 12, 2003;

July 3, 2006; March 16, 2007; March 5, 2018; February 2, 2021; August 31, 2023 December 11, 1964 September 19, 1966; March 21, 1985 for Paul (Vu) Nguyen Manager, Central Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3

SA840WE 3

SA840WE Date of Issuance: December 11, 1964 Date Amended: March 21, 1985 Date of Reissuance: August 31, 2023

The engines must be previously modified to incorporate turbochargers in accordance with STC No. SE6WE. The approval of this change in type design applies to the basic Piper PA-23-250 aircraft S/N 27-2505 and subsequent. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. FAA Approved Airplane Flight Manual Supplement dated December 11, 1964 or later FAA approved revision is required for this installation. Further, Revision dated September 6, 1966 or later FAA approved revision is required for Model PA-E23-250 or for IO-540-C4 installation.)

• The engines must be previously modified to incorporate turbochargers in accordance with STC No. SE6WE. The approval of this change in type design applies to the basic Piper PA-23-250 aircraft S/N 27-2505 and subsequent.

• FAA approved airplane Flight Manual Supplement dated December 11, 1964 or later

• FAA approved revision is required for this installation. Further, Revision dated September 6, 1966 or later

• FAA approved revision is required for model PA-E23-250 or for IO-540-C4 installation.

-END- 3 3

## Every issue (3)

- August 31, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/81/c1/81c14504efb27324eb27a1b3085a83837989935a202224881ba655f4a2656a02)
- March 5, 2018: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/9b/f9/9bf9b436377cf61ac00a1a99867b93d763ac0cc3c6bc0a33b2f95e2bbafcd409)
- July 3, 2006: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f2/e8/f2e84a74c1e5054668d94d380d730c16f0458ed5f0af61c6090f90ec007a72bf)

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