# AD 68-19-01: Suction Gage Markings

- Type: Airworthiness directive
- Status: Current
- Products: Aermacchi S.205 - 22/R
- Effective: October 11, 1968
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-653
- Registered aircraft: 22 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/546533C9D60969DC86256A550066BBA4.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/68-19-01

## The airworthiness directive

68-19-01 SIAI-MARCHETTI: Amendment 39-653. Applies to Model S.205-22/R airplanes, Serial Nos. 213, 370, 371, 372, 373, 374, 378, 379, 380, 381, 382, 384, 385, 387, 388, 389, 390, 392, 393, 394, 395, 396, 398, 4-124, 4-125.

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

Modify the limitation markings on the suction gage instrument, Siai P/N NS5F017, located on the right side of the instrument panel, by marking a green arc in the range from 4 inches Hg. to 5 inches Hg. and a red radial line at 5 inches Hg. and adjust the instrument's suction relief valve so that the suction gage reading is 4.5 + 0.1 inches Hg. at 2200 r.p.m., in accordance with Siai-Marchetti Service Bulletin No. 205B21 dated May 6, 1968, or later RAI-approved issue, or an FAA-approved equivalent. Check to insure that the suction gage reading does not exceed 5 inches Hg. at maximum engine r.p.m.

This amendment becomes effectiveOctober 11, 1968.

## 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 1 of 7 models: S.205 - 22/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: 22 (22 by airframe model, 0 by engine model)
- Makers: Siai-Marchetti 22

Models with the most aircraft:

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

All 1 models: https://openairdocs.org/ad/68-19-01/models.md
Every aircraft: https://openairdocs.org/ad/68-19-01/aircraft.md

Its text cites no advisory circulars or STCs.

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