# AD 69-04-04: Aileron Balance Bolt

- Type: Airworthiness directive
- Status: Current
- Products: Pilatus PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC-6/B1-H2 and PC-6/C-H2
- Effective: February 14, 1969
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-720
- Registered aircraft: 3 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/581794A700D0C1FB86256C8600718B96.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/69-04-04

## The airworthiness directive

69-04-04 PILATUS: Amdt. 39-720. Applies to Model PC-6 airplanes, Serial Numbers 342 through 675, 2001 through 2009, 2012 through 2018, 2025 through 2035, 2040 and 2041.

Compliance required within the next 25 hours time in service after the effective date of this AD, unless already accomplished.

To prevent fatigue failure of the forward aileron mass balance attachment bolt P/N N-116 M5X40 (932.11.41.39), replace bolt on left and right aileron with new bolts of the same part number that have been supplied by the Pilatus Aircraft Works, Stans, Switzerland or Fairchild Hiller Corporation, Hagerstown, Maryland, after April 15, 1968 in accordance with Pilatus Service Bulletins No. 81 and 81A or later Swiss Federal Air Office-approved issue or an FAA approved equivalent.

This amendment becomes effective February 14, 1969.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 7A15](https://openairdocs.org/tcds/7A15): Pilatus Aircraft Ltd.; names 12 of 15 models: PC-6/350-H1, PC-6/B-H2, PC-6/A-H2, PC-6/C-H2, PC-6, PC-6/A-H1, PC-6-H2, PC-6-H1…

## 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: 3 (3 by airframe model, 0 by engine model)
- Makers: Pilatus 3

Models with the most aircraft:

- [Pilatus PC-6/B1-H2](https://openairdocs.org/model/pilatus-pc-6-b1-h2): 2 aircraft (airframe model)
- [Pilatus PC-6](https://openairdocs.org/model/pilatus-pc-6): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/69-04-04/models.md
Every aircraft: https://openairdocs.org/ad/69-04-04/aircraft.md

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.