# AD 75-06-04: Forward Rudder Control Cable

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-31-350
- Effective: March 13, 1975
- Published: March 7, 1975
- Issued: February 26, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2121
- Registered aircraft: 399 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9C40DE03BAF4FC0F8625699900514410.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/75-06-04

## The airworthiness directive

75-06-04 PIPER: Amendment 39-2121. Applies to Model PA-31-350, Serial Nos. 31- 5001 through 31-7405495 certificated in all categories. Compliance required within the next ten hours in service from the effective date of this AD unless previously accomplished, as indicated.

1. Inspect the forward rudder control cable installation as follows:

a. Remove the left pilot's seat and associated floor panels.

b. Inspect the left- and right-hand forward rudder control cables P/N 41947-03 for proper routing between the pulleys and cable guard pins.

c. Remove the forward rudder cable guard pins and inspect the pins for evidence of contact with the control cable.

d. If a forward rudder control cable is not properly routed or the cable guard pins show evidence of contact with the control cable, the control cable must be replaced with an acceptable part of the same part number, before further flight, except that the airplane may be flown in accordance with FAR 21.197 to a base where repairs can be made.

(Piper Service Bulletin No. 379A refers to this subject.)

This amendment is effective March 13, 1975, and was effective for all recipients of the airmail dispatch of February 12, 1975, upon receipt.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A20SO](https://openairdocs.org/tcds/A20SO): Piper Aircraft Inc.; names 1 of 4 models: PA-31-350

## 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: 399 (399 by airframe model, 0 by engine model)
- Makers: Piper 399

Models with the most aircraft:

- [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350): 399 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/75-06-04/models.md
Every aircraft: https://openairdocs.org/ad/75-06-04/aircraft.md

Its text cites no advisory circulars or STCs.

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