# STC SA709NE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Phoenix Air Group Inc., United States
- Description: Installation of Marquardt  MTR-101 Tow Reel System
- Applied: September 18, 1984
- Status date: May 29, 2024
- Product: Aircraft, Large Airplane
- Certification basis: Part 25
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE)
- Certificate PDF: https://openairdocs.org/files/sha256/13/df/13df8431819d9ce4b88772d9bffad306cd5a864c1ca205d17d0b8a070abc1728
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID109063354720240725212845.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA709NE

## ADs that name it (0)

None.

## Approved models (4)

- Learjet Inc. 35 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 35A (C-21A) ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 36 ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))
- Learjet Inc. 36A ([TCDS A10CE](https://openairdocs.org/tcds/A10CE))

## 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.

SA709NE Phoenix Air Group, Inc.

100 Phoenix Air Drive, S.W.

Cartersville, GA 30120 Part 21 & 25 Title 14 Code of Federal Regulations A10CE Learjet Corp 35, 35A, 36, and 36A Installation of Marquardt MTR-101 Tow Reel System in accordance with Flight International, Inc. Drawing List No. FI-89-240D5, Rev. C, dated November 30, 1989, and Flight International, Inc., Report No. E-1128, Rev. 7, dated May 5, 1993.

1. When this modification is installed the airplane must be placed in Restricted Category.

(See Limitations and Conditions Continued on Page 3 of 3) September 18, 1984 September 21, 2022, May 29, 2024 December 4, 1989 September 28, 1990, August 16, 1994 Christina M. Underwood Manager, East Certification Branch Compliance & Airworthiness Division Aircraft Certification Service 3

SA709NE 3

SA709NE Date Reissued: May 29, 2024

2. Flight International, Inc., Airplane Flight Manual Supplement for Learjet Model 35, 35A, 36, 36A Series with FC200 Autopilot, Report No. E-1127, Rev. 2, FAA approved August 16, 1994 is required with this modification.

3. Installation of modifications described by STC SA1604SO is required prior to installation of this modification.

4. Prior to the first flight of the day perform inspections No. 1 and No. 2 described on page 4 of 6 of Flight International, Operation Check List for MTR-101 Tow Reel, Report No. E-1118, Rev. B, dated November 16, 1989.

5. Prior to each flight, determine from the tow reel operator the maximum target towing speed based on the installed tow cable/target design limitations.

6. This approval should not be incorporated in any aircraft of these specific models on which other approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those previously incorporated approved modifications will not introduce any adverse effect upon the airworthiness of the aircraft.

----------------------------END------------------------ 3 3

## Every issue (5)

- May 29, 2024: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/13/df/13df8431819d9ce4b88772d9bffad306cd5a864c1ca205d17d0b8a070abc1728)
- September 21, 2022: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/3d/ce/3dce180a35b9d9bea6d988694e3b1cd030dba3393349918b4fcb445784a61631)
- August 19, 1994: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/1d/79/1d79e641454354783cddaef21f24f0d5c7f080437f2a3530e67bc1aca6a37b6b)
- August 16, 1994: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/1d/79/1d79e641454354783cddaef21f24f0d5c7f080437f2a3530e67bc1aca6a37b6b)
- December 4, 1989: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/66/28/6628899a9eee38d1eb14c1afbc84063a93472d527494c0e9de9561f53bd12198)

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