# AD 79-21-08: Fuel Injection Systems

- Type: Airworthiness directive
- Status: Current
- Products: Bendix Energy Controls Division Fuel Injection Systems
- Effective: October 24, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Appliance
- Amendment: 39-3593
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/62A7E26C90A8704286256A320060344D.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/79-21-08

## The airworthiness directive

79-21-08 BENDIX ENERGY CONTROLS DIVISION: Amendment 39-3593. Applies to the below listed fuel injection systems installed in aircraft certificated in all categories:

Model No. Parts List No. RSA-5AB1 2524199-9, 2524216-8

2524254-7, 2524262-6

2524378-7, 2524712-3/-5/-6 RSA-5AD1 2524054-7/-8, 2524147-9/-10

2524171-7/-8, 2524189-7/-8

2524213-7/-8, 2524242-6/-7

2524243-7/-8, 2524291-7/-8

2524297-6/-7, 2524307-6/-7

2524328-6/-7, 2524341-6/-7

2524348-7/-8, 2524359-6/-7

2524450-5/-6, 2524459-5/-6

2524475-4/-5, 2524550-4/-5

2524575-4/-5, 2524590-4/-5

2524592-4/-5, 2524623-4/-5

2524634-4/-5, 2524640-4/-5

2524673-4/-5, 2524682-4/-5

2524723-4/-5, 2524742-4/-5

2524752-3/-4 RSA-7AA1 2524347-4/-6 RSA-7DA1 2524624-1/-2 RSA-10AD1 2524030-7/-8, 2524152-6/-7

2524163-10/-11, 2524175-6/-7

2524255-6/-7, 2524256-8/-9

2524311-6/-7, 2524757-3/-4 RSA-10DB1 2524267-6/-7, 2524275-11/-12

2524276-7/-8, 2524593-4/-5

2524649-6/-7 RSA-10DB2 2524501-5/-6, 2524708-4/-5 RSA-10ED1 2524273-8/-9, 2524298-8/-9

2524366-6/-7, 2524420-7/-8

2524422-5/-6, 2524477-7/-8

2524491-5/-6, 2524492-4/-5

2524500-5/-6, 2524556-5/-6

2524582-4/-5, 2524601-4/-5

2524693-4/-5/-6/-7, 2524709-3/-4

2524733-3/-4 RSA-10ED2 2524791-1/-2/-3

These fuel injection systems are installed on, but not limited to, the engine models listed below:

Lycoming IO-320 Series

AIO-320 Series

AEIO-320 Series

IO-360 Series

HIO-360 Series

AIO-360 Series

AEIO-360 Series

TIO-360 Series

IGO-480 Series

IO-540 Series

HIO-540 Series

AEIO-540 Series

IGO-540 Series

IVO-540 Series

TIO-540 Series

TIO-541 Series

TIGO-541 Series

IO-720 Series Continental TSIO-520-L

TSIO-520-LB

TSIO-520-WB

Compliance is required within the next twenty-five (25) hours of aircraft time in service, or within the next thirty (30) calendar days from the effective date of this AD, whichever occurs first.

To prevent a fuel flow cutoff to the engine and subsequent loss of power, inspect the lock nut for proper engagement and crimp the stem in accordance with the following Bendix Energy Controls Division Service Bulletins:

1. Service Bulletin No. RS-68 dated August 20, 1979 applicable to the Series RSA-5 and RSA-10 models;

2. Service Bulletin No. RS-69 dated August 20, 1979 applicable to the RSA-7AA1 model; or

3. Service Bulletin No. RS-70 dated August 20, 1979 applicable to the RSA-7DA1 model.

This amendment becomes effective October 24, 1979 as to all persons except those to whom it was made immediately effective by the airmail letter dated August 28, 1979, which contained this amendment.

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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