# STC SA4-1601

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Air Oasis Company, United States
- Description: Conversion of aircraft for parachute jumping and aerial photography operations.
- Applied: September 15, 1961
- Status date: July 7, 1962
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12), [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/6e/e6/6ee6b977d1a257dcb5e255b9df5d163b5b9717bf862b0f76fcb95dbc303a75aa
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5A72796D7842286F8625859E0035481B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-1601

## ADs that name it (0)

None.

## Approved models (8)

- Textron Aviation Inc. 172 ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172A ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172B ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 172C ([TCDS 3A12](https://openairdocs.org/tcds/3A12))
- Textron Aviation Inc. 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Textron Aviation Inc. 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Textron Aviation Inc. 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Textron Aviation Inc. 175C ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

FEDERAL AVIATION AGENCY Supplemental Type Certificate

1. NAME AND ADDRESS OF APPLICANT Air Oasis Company Municipal Airport Long Beach, California

**3. DESCRIPTION OF CHANGE FORM APPROVED, BUDGET BUREAU NO, 04-R015**

**INSTRUCTIONS - SUBMIT IN TRIPLICATE TO LOCAL FAA FLIGHT STANDARDS INSPECTOR.**

**COPY WILL BE RETURNED TO APPLICANT UPON**

ISSUANCE Supplemental Type Certificate APPLIED FOR:

X AIRCRAFT ENGINE _ PROPELLER ORIGINAL MODEL DESIGNATION & 175€ CESSNA 172,172A, 1728, 172C, 175,175A,175B/ NEW MODEL DESIGNATION (If demired) Kone Removal of right-hand door, right-hand control column, right-hand front seat, and right-hand seat belt to permit aircraft to engage in special oporations such as parachute jumping, aerial photography, ote.

**SEE REVERSE SIDE FOR OPERATIONS LIMITATIONS.**

portion indone it ta totoined ent the taconstacio and any of those other previously approved modifications will introduce no adverso effect upon the airworthiness of that airplane.

No further data required.

Certification Dasis: CAR-S.

.. WILL DATA BE AVAILABLE FOR SWOOS RELEASE TO OTHER PERSONS? YES NO

b. WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? YES LX NO

5. SIGNATURE AND TITLE OF APPLICANT Tom Sheridan SIGNATURE September 15, 1961 Vice President Date of Application: TITLE

6. To be Completed by FAA

NATURE AND LOCATION OF DATA ORIGINAL TYPE CERTIFICATE NO. FAA APPROVAL 3A12/ 3A17 Supplemental Type Certificate NO.

Charles R. Hawks, SIGNATURE SA4-1601 DATE OF APPROVAL Chief, Engineering and Manufacturing Franch September 21, 1901 Flight Standards Division Revised: September 7, 1962 TITLE FU.S GOVERN RINTING OFFICE 1959 0-509657 FORM FAA - 2417(5-59)

OPERATIONS LIMITATIONS A COPY OF THESE LIMITATIONS SHALL BE CARRIED IN THE AIRCRAFT AT ALL TIMES.

The following placards are required in full view of the pilot and passengers:

1 - "Airplane's maneuvers are limitoe to normal take-ofis, climbs, bank angles not to exceed 30°, yaw angles not to exceed 10°, slides, landings and speeds not in excess of 100 MPH TIAS.

"No saokins pormitted."

"PAA Approved seating provisions with safety belts must be provided for pilot and all passengers.

NOTE: No seat is installed at the usual right-hand front sent location.

This passenger shall sit on the floor facing forward using original seat belt provision.

"All loose objects in the cabin aust be properly secured."

in addition to placards 1 through 4, inclusive, placards 5 and 6 are required when aireraft used for Parachute Jumping Operations.

'Jumpers' static lines must be installed in a manger to prevent interference with pilot's controls and control surfaces.

G. "Pilot shail weur a parachute."

"Observers curried during jumping operations shall wear parachutes."

## Every issue (1)

- July 7, 1962: Amended, Current. [certificate](https://openairdocs.org/files/sha256/6e/e6/6ee6b977d1a257dcb5e255b9df5d163b5b9717bf862b0f76fcb95dbc303a75aa)

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