# AD 74-15-07: Propeller Mounting

- Type: Airworthiness directive
- Status: Current
- Products: American Champion 8GCBC
- Effective: July 26, 1974
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1901
- Registered aircraft: 400 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/685DC34BEB0BB21386256A34005910C3.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/74-15-07

## The airworthiness directive

74-15-07 BELLANCA AIRCRAFT CORPORATION: Amendment 39-1901. Applies to Bellanca Models 8GCBC aircraft Serial Numbers 2-74 to an including 62-74.

Before further flight, verify that the propeller is properly indexed to the crankshaft flange. This can be accomplished by removing the upper cowling and examining the aft face of the crankshaft flange to determine if the shoulders of all six bushings are seated upon the rear face of flange. If incorrectly indexed, two bushing shoulders will be approximately 1/16 inch off flange surface. If incorrect, propeller and spacer must be removed and all parts inspected for damage and replaced as necessary. If undamaged, replace spacer and propeller, assuring proper indexing to crank flange and torque six bolts to 660-780 inch pounds.

This amendment is effective July 26, 1974, and was effective July 2, 1974, for all recipients of the telegram dated July 2, 1974, which contained this amendment.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A21CE](https://openairdocs.org/tcds/A21CE): American Champion Aircraft Corp.; names 1 of 2 models: 8GCBC

## 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: 400 (400 by airframe model, 0 by engine model)
- Makers: American Champion 218, Bellanca 182

Models with the most aircraft:

- [American Champion 8GCBC](https://openairdocs.org/model/american-champion-8gcbc): 218 aircraft (airframe model)
- [Bellanca 8GCBC](https://openairdocs.org/model/bellanca-8gcbc): 182 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/74-15-07/models.md
Every aircraft: https://openairdocs.org/ad/74-15-07/aircraft.md

Its text cites no advisory circulars or STCs.

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