# AD 47-06-08: Starter Solenoid and Buss Lead Wires

- Type: Airworthiness directive
- Status: Current
- Products: Textron Army AT-11 and C18S
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 13 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5DBED814BD3743C786256A1C007209A9.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/47-06-08

## The airworthiness directive

47-06-08 BEECH: (Was Service Note 1 of AD-757-2 and Service Note 1 of AD-2-582- 2.) Applies to AT-11 and C18S Aircraft.

Compliance required immediately and after each 100 hours of operation thereafter.

Remove the battery covers from the right and left-hand wing stubs. Inspect the starter solenoid and main buss lead wires. In the right wing these wires are numbered 4 and 5. In the left wing they are numbered 2 and 3. If these wires show signs of chafing on the cold air duct junction box or any other part of the structure they should be supported by an insulated clip to give ample clearance.

(Beech Service Bulletin No. C18-5 covers this same subject.)

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-2-582](https://openairdocs.org/tcds/A-2-582): Textron Aviation Inc.; names 1 of 2 models: Army AT-11
- [TCDS A-757](https://openairdocs.org/tcds/A-757): Textron Aviation Inc.; names 1 of 1 models: C18S

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 13 (13 by airframe model, 0 by engine model)
- Makers: Beech 13

Models with the most aircraft:

- [Beech C18S](https://openairdocs.org/model/beech-c18s): 13 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/47-06-08/models.md
Every aircraft: https://openairdocs.org/ad/47-06-08/aircraft.md

Its text cites no advisory circulars or STCs.

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