# AD 77-13-16: Carburetors

- Type: Airworthiness directive
- Status: Current
- Products: Commander 112TC, 112TCA and Carburetors
- Effective: July 6, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Appliance
- Amendment: 39-2942
- Registered aircraft: 90 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5AD8BA588B57E06A86256A330055C9E7.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/77-13-16

## The airworthiness directive

77-13-16 MARVEL-SCHEBLER/TILLOTSON DIVISION: Amendment 39-2942. Applies to Model HA-6, Part Number A10-5200 carburetors, serial numbers CS-()-100 through CS-()-345, inclusive, installed on, but not limited to, Rockwell International Commander 112TC and 112TCA aircraft certificated in all categories.

Compliance required within the next 25 hours time in service after the effective date of this AD, unless already accomplished, except that the airplane may be flown in accordance with FAR 21.197 to a base where the modification can be performed.

To provide positive retention of the idle needle assembly, incorporate Marvel-Schebler/Tillotson Kit No. 666-817 in accordance with Marvel-Schebler/Tillotson Form No. MST-683.

Equivalent modifications may be approved by the Chief, Engineering and Manufacturing Branch, FAA Great Lakes Region.

The manufacturer's specifications and procedures identified 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 Marvel-Schebler/Tillotson Division, Borg Warner Corp., 2195 South Elwin Road, Decatur, Illinois 62525. These documents may also be examined at FAA Great Lakes Region, 2300 E. Devon Avenue, Des Plaines, Illinois 60018 and at FAA Headquarters, 800 Independence Avenue, S.W., Washington, D.C. 20591. A historical file on this AD which includes the incorporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and at the Great Lakes Region.

This amendment becomes effective July 6, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A12SO](https://openairdocs.org/tcds/A12SO): Commander Aircraft Corporation; names 2 of 8 models: 112TCA, 112TC

## 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: 90 (90 by airframe model, 0 by engine model)
- Makers: Rockwell International 90

Models with the most aircraft:

- [Rockwell International 112TC](https://openairdocs.org/model/rockwell-international-112tc): 47 aircraft (airframe model)
- [Rockwell International 112TCA](https://openairdocs.org/model/rockwell-international-112tca): 43 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/77-13-16/models.md
Every aircraft: https://openairdocs.org/ad/77-13-16/aircraft.md

Its text cites no advisory circulars or STCs.

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