# AD 73-11-04: Main Landing Gear Eye Bolt Seizure

- Type: Airworthiness directive
- Status: Current
- Products: Aermacchi S.205 - 18/R, S.205 - 20/R and S.205 - 22/R
- Effective: June 20, 1973
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1644
- Registered aircraft: 23 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C9B9EE061C0C78CF86256A55006A92E4.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/73-11-04

## The airworthiness directive

73-11-04 SIAI-MARCHETTI: Amdt. 39-1644. Applies to SIAI Marchetti Models S.205-18R, -20R, and -22R airplanes. Serial Numbers 001 through 003, and 101 through 399.

Compliance is required within the next 100 hours' time in service after the effective date of this AD unless already accomplished.

To provide a means for periodic lubrication to prevent seizing of the eye bolts, P/N 205- 9-047-11, connecting the articulated drag braces to the main landing gear cross members, install grease fittings and washers, P/N MS15720-1 and P/N 205-9-012-15, respectively, in the attachments for the eye bolts, P/N 205-9-047-11, to the main landing gear cross members in accordance with SIAI Marchetti Service Bulletin No. 205B32 dated November 19, 1971, or an FAA-approved equivalent.

This amendment becomes effective June 20, 1973.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A9EU](https://openairdocs.org/tcds/A9EU): Aermacchi S.p.A.; names 3 of 7 models: S.205 - 18/R, S.205 - 22/R, S.205 - 20/R

## 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: 23 (23 by airframe model, 0 by engine model)
- Makers: Siai-Marchetti 23

Models with the most aircraft:

- [Siai-Marchetti S.205/22R](https://openairdocs.org/model/siai-marchetti-s-205-22r): 22 aircraft (airframe model)
- [Siai-Marchetti S.205-18R](https://openairdocs.org/model/siai-marchetti-s-205-18r): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/73-11-04/models.md
Every aircraft: https://openairdocs.org/ad/73-11-04/aircraft.md

Its text cites no advisory circulars or STCs.

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