# AD 46-06-04: Propeller Spinner Attaching Lugs

- Type: Airworthiness directive
- Status: Current
- Products: Consolidated Vultee Aircraft Corporation, Stinson Division BT-13, BT-13A (Army SNV-1) and BT-13B (Navy SNV-2)
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 98 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/814951FB6A684F7686256A380059FA65.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/46-06-04

## The airworthiness directive

46-06-04 CONVAIR: (Was Service Note 3 of AD-2-571-2.) Applies Only to BT-13 Series Airplanes Equipped With a Propeller Spinner.

Inspect the propeller spinner attaching lugs after each 25 hours of operation for cracks or signs of impending failure. If cracks are found, the lugs should be reinforced or the spinner should be removed entirely.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-2-571](https://openairdocs.org/tcds/A-2-571): Consolidated Vultee Aircraft Corporation Stinson Division; names 3 of 4 models: BT-13B (Navy SNV-2), BT-13, BT-13A (Army SNV-1)

## 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: 98 (98 by airframe model, 0 by engine model)
- Makers: Consolidated Vultee 74, Convair 17, Cons Vultee/Basinger 1, Cons Vultee/Lacey 1, Cons Vultee/Pittman 1, Consolidated Vultee/Gunderson 1, Consolidated Vultee/Vanech 1, Consolidated/Nocco C 1, Vultee/Reed Ron 1

Models with the most aircraft:

- [Consolidated Vultee BT-13A](https://openairdocs.org/model/consolidated-vultee-bt-13a): 56 aircraft (airframe model)
- [Convair BT-13A](https://openairdocs.org/model/convair-bt-13a): 11 aircraft (airframe model)
- [Consolidated Vultee BT-13B (SNV-2)](https://openairdocs.org/model/consolidated-vultee-bt-13b-snv-2): 11 aircraft (airframe model)
- [Consolidated Vultee BT-13](https://openairdocs.org/model/consolidated-vultee-bt-13): 7 aircraft (airframe model)
- [Convair BT-13](https://openairdocs.org/model/convair-bt-13): 3 aircraft (airframe model)
- [Convair BT-13B](https://openairdocs.org/model/convair-bt-13b): 3 aircraft (airframe model)
- [Consolidated/Nocco C VULTEE BT-13](https://openairdocs.org/model/consolidated-nocco-c-vultee-bt-13): 1 aircraft (airframe model)
- [Cons Vultee/Pittman BT13](https://openairdocs.org/model/cons-vultee-pittman-bt13): 1 aircraft (airframe model)
- [Consolidated Vultee/Gunderson BT-13A](https://openairdocs.org/model/consolidated-vultee-gunderson-bt-13a): 1 aircraft (airframe model)
- [Consolidated Vultee/Vanech BT-13A](https://openairdocs.org/model/consolidated-vultee-vanech-bt-13a): 1 aircraft (airframe model)
- [Cons Vultee/Basinger BT-13A](https://openairdocs.org/model/cons-vultee-basinger-bt-13a): 1 aircraft (airframe model)
- [Cons Vultee/Lacey BT-13B](https://openairdocs.org/model/cons-vultee-lacey-bt-13b): 1 aircraft (airframe model)
- [Vultee/Reed Ron BT-13A](https://openairdocs.org/model/vultee-reed-ron-bt-13a): 1 aircraft (airframe model)

All 13 models: https://openairdocs.org/ad/46-06-04/models.md
Every aircraft: https://openairdocs.org/ad/46-06-04/aircraft.md

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.