# AD 74-17-01: Regulator

- Type: Airworthiness directive
- Status: Current
- Products: Boeing 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, 707-300C Series, 707-400 Series, 727-100 Series, 727-100C Series, 727-200 Series, 727 Series and 69 more
- Effective: September 16, 1974
- Superseded by: Nothing supersedes this AD
- Product type: Appliance
- Amendment: 39-1913
- Registered aircraft: 199 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D9079C8BF0821B4286256A33006F9587.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/74-17-01

## The airworthiness directive

74-17-01 SARGENT INDUSTRIES, PICO DIVISION: Amendment 39-1913. Applies to Sargent Industries, Pico Division Regulator P/N 30001 incorporated in passenger evacuation slides and slide/rafts on aircraft certificated in all categories.

Note: This regulator is installed in, but not limited to, Pico, Air Cruiser and International Inflatable slides on B-707, B-727, B-737, DC-6, DC-7, DC-8, DC-9, DC-10, and L-188 aircraft.

Compliance required within two years after the effective date of this AD, unless already accomplished.

To prevent delayed actuation of regulator P/N 30001, modify the Sargent Industries, Pico Division regulator, P/N 30001, in accordance with Sargent Industries, Pico Division Service Bulletin 25-51, dated March 14, 1974, or an equivalent modification approved by the Chief, Aircraft Engineering Division, FAA Western Region.

This amendment becomes effective September 16, 1974.

## Affected data sheets (12) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 4A25](https://openairdocs.org/tcds/4A25): The Boeing Company; names 27 of 27 models: DC-8-41, DC-8-52, DC-8-61, DC-8-53, DC-8-51, DC-8-63, DC-8-11, DC-8-72F…
- [TCDS A6WE](https://openairdocs.org/tcds/A6WE): The Boeing Company; names 19 of 25 models: DC-9-12, DC-9-15F, DC-9-41, DC-9-13, DC-9-34F, DC-9-81 (MD-81), DC-9-33F, DC-9-83 (MD-83)…
- [TCDS A22WE](https://openairdocs.org/tcds/A22WE): The Boeing Company; names 7 of 11 models: DC-10-40, DC-10-10F, DC-10-30, DC-10-30F (KC-10A KDC-10), DC-10-10, DC-10-40F, DC-10-15
- [TCDS A3WE](https://openairdocs.org/tcds/A3WE): The Boeing Company; names 5 of 6 models: 727-100 Series, 727 Series, 727-200 Series, 727-100C Series, 727C Series
- [TCDS 4A21](https://openairdocs.org/tcds/4A21): The Boeing Company; names 4 of 4 models: 707-100B Short Body, 707-200, 707-100 Long Body, 707-100B Long Body
- [TCDS 4A26](https://openairdocs.org/tcds/4A26): The Boeing Company; names 4 of 4 models: 707-300B Series, 707-400 Series, 707-300 Series, 707-300C Series
- [TCDS 4A10](https://openairdocs.org/tcds/4A10): The Boeing Company; names 3 of 3 models: DC-7, DC-7C, DC-7B
- [TCDS A16WE](https://openairdocs.org/tcds/A16WE): The Boeing Company; names 3 of 17 models: 737-100 Series, 737-200C Series, 737-200 Series
- [TCDS 4A22](https://openairdocs.org/tcds/4A22): Lockheed Martin Corporation; names 2 of 2 models: 188A, 188C
- [TCDS 6A3](https://openairdocs.org/tcds/6A3): The Boeing Company; names 1 of 3 models: DC-6A
- [TCDS 6A4](https://openairdocs.org/tcds/6A4): The Boeing Company; names 1 of 2 models: DC-6B
- [TCDS A-781](https://openairdocs.org/tcds/A-781): The Boeing Company; names 1 of 1 models: DC-6

## 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: 199 (199 by airframe model, 0 by engine model)
- Makers: Mcdonnell Douglas 109, Douglas 41, Boeing 40, Mcdonnell-Douglas 5, Lockheed 4

Models with the most aircraft:

- [Mcdonnell Douglas DC-9-83(MD-83)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-83-md-83): 49 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-82(MD-82)](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82-md-82): 22 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-87](https://openairdocs.org/model/mcdonnell-douglas-dc-9-87): 13 aircraft (airframe model)
- [Mcdonnell Douglas DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f): 12 aircraft (airframe model)
- [Boeing 727-223](https://openairdocs.org/model/boeing-727-223): 9 aircraft (airframe model)
- [Douglas DC-6B](https://openairdocs.org/model/douglas-dc-6b): 9 aircraft (airframe model)
- [Douglas DC-6A](https://openairdocs.org/model/douglas-dc-6a): 7 aircraft (airframe model)
- [Douglas DC-10-40](https://openairdocs.org/model/douglas-dc-10-40): 6 aircraft (airframe model)
- [Mcdonnell-Douglas DC-10-30](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30): 5 aircraft (airframe model)
- [Boeing 727-227](https://openairdocs.org/model/boeing-727-227): 4 aircraft (airframe model)
- [Boeing 737-205](https://openairdocs.org/model/boeing-737-205): 3 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-15F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-15f): 3 aircraft (airframe model)
- [Mcdonnell Douglas DC-9-33F](https://openairdocs.org/model/mcdonnell-douglas-dc-9-33f): 3 aircraft (airframe model)
- [Lockheed 188C](https://openairdocs.org/model/lockheed-188c): 3 aircraft (airframe model)
- [Boeing 707-338C](https://openairdocs.org/model/boeing-707-338c): 2 aircraft (airframe model)
- [Boeing 727-225](https://openairdocs.org/model/boeing-727-225): 2 aircraft (airframe model)
- [Douglas DC-7](https://openairdocs.org/model/douglas-dc-7): 2 aircraft (airframe model)
- [Douglas DC-7B](https://openairdocs.org/model/douglas-dc-7b): 2 aircraft (airframe model)
- [Douglas DC-8-73](https://openairdocs.org/model/douglas-dc-8-73): 2 aircraft (airframe model)
- [Douglas DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f): 2 aircraft (airframe model)

All 59 models: https://openairdocs.org/ad/74-17-01/models.md
Every aircraft: https://openairdocs.org/ad/74-17-01/aircraft.md

Its text cites no advisory circulars or STCs.

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