# AD 64-06-06: Control Wheels

- Type: Airworthiness directive
- Status: Current
- Products: Piper PA-28-150, PA-28-160, PA-28-180, PA-28-235, PA-28S-160 and PA-28S-180
- Effective: April 6, 1964
- Published: March 5, 1964
- Issued: February 27, 1964
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 4,741 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2EC911FCBF657F6B862569970057F9FC.0001
- DRS record last changed: November 21, 2025
- Page: https://openairdocs.org/ad/64-06-06

## The airworthiness directive

64-06-06 PIPER: Amdt. 696 Part 507 Federal Register March 5, 1964. Applies to All Model PA-28 Aircraft, Serial Numbers 28-1 to 28-868 Inclusive, with Control Wheel Assembly, P/N 62818, Installed.

Compliance required as indicated.

To preclude failure of the control wheel, accomplish the following:

  (a) Within 50 hours' time in service after the effective date of this AD:

  (1) Remove the Piper medallion from the face of the control wheel.

  (2) Inspect the control wheel for cracks in the hub front and back, and in the area of the retaining pin, using dye penetrant in conjunction with at least a 5-power magnifying glass, or FAA approved equivalent inspection method.

  (3) Sand any suspected area with crocus cloth or equivalent to remove any mold marks and reinspect as in (2).

  (b) If no cracks are found, or if the total cumulative length of all cracks found does not exceed 3/16 inch, repeat the inspection in (a) at intervals not exceeding 100 hours'time in service.

  (c) If the total cumulative length of all cracks found exceeds 3/16 inch, but does not exceed 3/8 inch, replace the assembly with a new control wheel assembly, P/N 62824 or P/N 62818, within the next 50 hours' time in service.

  (d) If the total cumulative length of all cracks found exceeds 3/8 inch, replace the assembly, as in (c), within 10 hours' time in service.

  (e) When a new control wheel assembly, P/N 62824, is installed, this AD is no longer applicable.

  (f) When a new control wheel assembly, P/N 62818, is installed, accomplish the inspections per paragraph (a) at intervals of 100 hours' time in service.

(Piper Service Letter No. 396 on the Model PA-28 pertains to this same subject.)

This directive effective April 6, 1964.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2A13](https://openairdocs.org/tcds/2A13): Piper Aircraft Inc.; names 6 of 18 models: PA-28-150, PA-28S-160, PA-28-160, PA-28S-180, PA-28-180, PA-28-235

## 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: 4,741 (4,741 by airframe model, 0 by engine model)
- Makers: Piper 4,740, Piper/Valdes-Ervin 1

Models with the most aircraft:

- [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 3,504 aircraft (airframe model)
- [Piper PA-28-235](https://openairdocs.org/model/piper-pa-28-235): 859 aircraft (airframe model)
- [Piper PA-28-160](https://openairdocs.org/model/piper-pa-28-160): 253 aircraft (airframe model)
- [Piper PA-28-150](https://openairdocs.org/model/piper-pa-28-150): 123 aircraft (airframe model)
- [Piper PA-28S-180](https://openairdocs.org/model/piper-pa-28s-180): 1 aircraft (airframe model)
- [Piper/Valdes-Ervin PA-28-235](https://openairdocs.org/model/piper-valdes-ervin-pa-28-235): 1 aircraft (airframe model)

All 6 models: https://openairdocs.org/ad/64-06-06/models.md
Every aircraft: https://openairdocs.org/ad/64-06-06/aircraft.md

Its text cites no advisory circulars or STCs.

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