# AD 75-06-02: Cargo Carriers

- Type: Airworthiness directive
- Status: Current
- Products: MD Helicopters 369HE, 369HM and 369HS with STC SH129WE or SH133WE
- Effective: March 28, 1975
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Amendment: 39-2119
- Registered aircraft: 78 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0275579D1FEA47E686256A39004BA697.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/75-06-02

## The airworthiness directive

75-06-02 HUGHES: Amendment 39-2119. Applies to Hughes Model 369HS, 369HE and 369HM helicopters as modified by the installation of cargo carriers in accordance with Chadwick STC SH133WE or the installation of auxiliary fuel tanks in accordance with SH129WE, certificated in all categories. Helicopters modified by these two STCs may continue to fly without cargo racks and auxiliary tanks installed. Compliance required as indicated.

To prevent inadvertent loss of cargo racks or auxiliary fuel tanks, accomplish the following:

Within 100 hours time in service or by June 1, 1975, whichever comes first, unless already accomplished, install the lock pin guard, Chadwick P/N 75-30135, in accordance with the Chadwick Field Kit Installation C-75G, Drawing No. 75-11200, dated September 11, 1974 or later FAA approved revisions, or modify in a manner approved by the Chief, Engineering and Manufacturing Branch, FAA, Northwest Region.

The manufacturer's specifications and proceduresidentified and described in this directive are incorporated herein and made a part hereof pursuant to 5 U.S.C. 552(a)(1).

All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Chadwick Inc., 4375 S.W. 142nd Ave., Beaverton, Oregon 97005. The documents may also be examined at FAA Northwest Region, 9010 East Marginal Way South, Seattle, Washington.

This amendment becomes effective March 28, 1975.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS H3WE](https://openairdocs.org/tcds/H3WE): MD Helicopters LLC; names 3 of 12 models: 369HS, 369HM, 369HE

## 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: 78 (78 by airframe model, 0 by engine model)
- Makers: Hughes 72, MD Helicopters 5, Summa 1

Models with the most aircraft:

- [Hughes 369HS](https://openairdocs.org/model/hughes-369hs): 69 aircraft (airframe model)
- [MD Helicopters 369HS](https://openairdocs.org/model/md-helicopters-369hs): 3 aircraft (airframe model)
- [Hughes 369HE](https://openairdocs.org/model/hughes-369he): 3 aircraft (airframe model)
- [MD Helicopters 369HM](https://openairdocs.org/model/md-helicopters-369hm): 2 aircraft (airframe model)
- [Summa 369HS](https://openairdocs.org/model/summa-369hs): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/75-06-02/models.md
Every aircraft: https://openairdocs.org/ad/75-06-02/aircraft.md

## Related documents

- [STC SH129WE](https://openairdocs.org/stc/SH129WE): Installation of Chadwick C-20 auxiliary fuel system. (369HS (SN 0101 & subs), 369HE (SN 0101 & subs), 369HM (SN 0201 & subs), 369D (SN 033 & subs)). Phoenix Air-Atlanta, Named in the applicability
- [STC SH133WE](https://openairdocs.org/stc/SH133WE): Installation of C-75 cargo rack set.. Isolair Inc., Named in the applicability

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