# AD 67-14-01: Rotor Blade Modification

- Type: Airworthiness directive
- Status: Current
- Products: Air & Space America 18A
- Effective: April 29, 1967
- Published: April 29, 1967
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-405
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E36316052D46B49886256A340047E920.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/67-14-01

## The airworthiness directive

67-14-01 AIR and SPACE: Amdt. 39-405 Part 39 Federal Register April 29, 1967. Applies to Model 18A Gyroplanes Equipped with Air and Space Rotor Blades.

Before further flight of any Air and Space Model 18A gyroplane, unless already accomplished, modify the rotor blades in accordance with Air and Space Manufacturing, Inc. Service Bulletin No. 15, dated December 27, 1966, or an equivalent approved by the Chief, Engineering and Manufacturing Branch, FAA Central Region. Upon completion of this modification the rotor blade set need not be rebalanced, but must be tracked before return to service.

NOTE: Pursuant to Air and Space Manufacturing, Inc. Maintenance and Rigging Manual, page 30, Section M, no separations are permitted in the leading edge protective strip of the rotor blade. If separation is detected, the blade should be discarded unless a repair is authorized by the Chief, Engineering and Manufacturing Branch, FAA Central Region.

This directive effective April29, 1967 and supersedes the telegraphic airworthiness directive of January 17 on the subject.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1H17](https://openairdocs.org/tcds/1H17): TWMCC Leasing LLC; names 1 of 1 models: 18A

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Air & Space America 6

Models with the most aircraft:

- [Air & Space America 18A](https://openairdocs.org/model/air-space-america-18a): 6 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/67-14-01/models.md
Every aircraft: https://openairdocs.org/ad/67-14-01/aircraft.md

Its text cites no advisory circulars or STCs.

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