# AD 47-32-18: Sprocket Cotter Pin

- Type: Airworthiness directive
- Status: Current
- Products: Bellanca 14-13 and 14-13-2
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 120 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C894476FA9DD516A86256A340056E52C.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-32-18

## The airworthiness directive

47-32-18 BELLANCA: (Was Service Note 1 of AD-773-5.) Applies to Models 14-13, 14-13-2 Serial Numbers 1075, and Up.

Compliance required prior to October 15, 1947, and after each 25 hours of operation.

Remove the washer and cotter pin from the clevis bolt which holds on the aileron idler sprocket located at the top center of the control yoke and back off the sprocket. Lubricate the entire bearing surface of the clevis pin with oil. Reinstall sprocket and washer, and safety with new cotter pin of same type (AN 380-3-3).

(Bellanca Service Bulletin No. 9 covers the same subject, and the installation of a grease fitting to avoid removing the sprocket.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-773](https://openairdocs.org/tcds/A-773): Bellanca Aircraft Corporation; names 2 of 4 models: 14-13-2, 14-13

## 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: 120 (120 by airframe model, 0 by engine model)
- Makers: Bellanca 120

Models with the most aircraft:

- [Bellanca 14-13-2](https://openairdocs.org/model/bellanca-14-13-2): 77 aircraft (airframe model)
- [Bellanca 14-13](https://openairdocs.org/model/bellanca-14-13): 43 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/47-32-18/models.md
Every aircraft: https://openairdocs.org/ad/47-32-18/aircraft.md

Its text cites no advisory circulars or STCs.

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