# AD 50-17-02: Rudder cable inspection

- Type: Airworthiness directive
- Status: Current
- Products: Univair 108, 108-1, 108-2 and 108-3
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 1,405 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A5079BA92333A7F786256A4D005E117D.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/50-17-02

## The airworthiness directive

50-17-02 STINSON: Applies to All Model 108 Series Aircraft. Compliance required as indicated. A number of cases have been reported of broken core strands in the rudder cables where they pass over the pulley at fuselage Station 18.75 (first pulley aft of rudded pedals). To preclude failures, the following is therefore required: 1. Within the next 25 hours and at every 100 hours thereafter the following should be accomplished. Remove the rudder cables from the pulleys, bend the cables in a tight "U" where they pass over the pulley, being careful that permanent kinks are not formed, and inspect either visually or by touch. Replace all cables showing signs of breakage. 2. The above inspection may be discontinued and the normal inspections resumed if the following is done: Remove the AN 210-3A pulleys at fuselage Station 18.75; modify the pulley brackets and install larger pulleys, P/N 41001-2, and two cable guards, P/N SK253-2, in accordance with detailed instructions in PiperService Bulletin No. 114 or an equivalent modification.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-767](https://openairdocs.org/tcds/A-767): Univair Aircraft Corporation; names 4 of 5 models: 108, 108-3, 108-1, 108-2

## 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: 1,405 (1,405 by airframe model, 0 by engine model)
- Makers: Stinson 1,269, Universal Stinson 134, Consolidatedvultee Acft 2

Models with the most aircraft:

- [Stinson 108-3](https://openairdocs.org/model/stinson-108-3): 433 aircraft (airframe model)
- [Stinson 108-1](https://openairdocs.org/model/stinson-108-1): 338 aircraft (airframe model)
- [Stinson 108-2](https://openairdocs.org/model/stinson-108-2): 285 aircraft (airframe model)
- [Stinson 108](https://openairdocs.org/model/stinson-108): 213 aircraft (airframe model)
- [Universal Stinson 108-3](https://openairdocs.org/model/universal-stinson-108-3): 49 aircraft (airframe model)
- [Universal Stinson 108-2](https://openairdocs.org/model/universal-stinson-108-2): 38 aircraft (airframe model)
- [Universal Stinson 108-1](https://openairdocs.org/model/universal-stinson-108-1): 28 aircraft (airframe model)
- [Universal Stinson 108](https://openairdocs.org/model/universal-stinson-108): 19 aircraft (airframe model)
- [Consolidatedvultee Acft 108](https://openairdocs.org/model/consolidatedvultee-acft-108): 2 aircraft (airframe model)

All 9 models: https://openairdocs.org/ad/50-17-02/models.md
Every aircraft: https://openairdocs.org/ad/50-17-02/aircraft.md

Its text cites no advisory circulars or STCs.

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