# AD 73-11-08: Landing Gear Link Pins and Bolts

- Type: Airworthiness directive
- Status: Current
- Products: Aermacchi S.205 - 18/F, S.205 - 18/R, S.205 - 20/F, S.205 - 20/R and S.205 - 22/R
- Effective: June 22, 1973
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1648
- Registered aircraft: 24 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C754C2C42A2977A186256A55006ABF4A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/73-11-08

## The airworthiness directive

73-11-08 SIAI-MARCHETTI: Amdt. 39-1648. Applies to SIAI Marchetti Model S.205 airplanes, Serial Numbers 001, 002, 003, 101 through 399, and 4-101 through 4-212.

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 of the main and nose landing gear torque link pins and bolts accomplish the following in accordance with SIAI Marchetti Service Bulletin No. SB 205B35 dated March 13, 1972, or an FAA-approved equivalent:

  (a) Remove the existing main and nose landing gear center torque link hinge bolts and main and nose landing gear upper and lower torque link to landing gear pins.

  (b) Clean the bushings by removing rust residue; install the following bolts, pins, and grease fittings in the locations indicated, and check the fit between the pins and bushings.

  (1) Install new pins with grease fittings, P/N 205-9-043-01, in the upper and lower main gear torque link to main gear leg connections with the grease fittings pointing toward the airplane centerline.

  (2) Install new bolts with grease fittings, P/N 205-9-063-01, in the main landing gear upper to lower torque link connections.

  (3) Install new pins, P/N 205-9-137-11 and P/N 205-9-138-11, in the upper and lower torque link to nose landing gear leg connections, respectively, and install grease fittings, P/N 205-9-154-01.

  (4) Install a new bolt with grease fitting, P/N 205-9-153-01, in the nose landing gear upper to lower torque link connection.

This amendment becomes effective June 22, 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 5 of 7 models: S.205 - 18/F, S.205 - 18/R, S.205 - 22/R, S.205 - 20/R, S.205 - 20/F

## 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: 24 (24 by airframe model, 0 by engine model)
- Makers: Siai-Marchetti 24

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.205-20F](https://openairdocs.org/model/siai-marchetti-s-205-20f): 1 aircraft (airframe model)
- [Siai-Marchetti S.205-18R](https://openairdocs.org/model/siai-marchetti-s-205-18r): 1 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/73-11-08/models.md
Every aircraft: https://openairdocs.org/ad/73-11-08/aircraft.md

Its text cites no advisory circulars or STCs.

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