# AD 47-51-13: Cabin Heat Control Valve

- Type: Airworthiness directive
- Status: Current
- Products: Bellanca 14-13, 14-13-2, 14-13-3 and 14-13-3W
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Registered aircraft: 131 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F7D464664CEFB6FE86256A340056E77A.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/47-51-13

## The airworthiness directive

47-51-13 BELLANCA: Applies to Model 14-13 Serial Numbers 1060 Through 1513, 1545, 1548, 1551 Through 1560.

Compliance required not later than May 1, 1948.

To eliminate the possibility of an engine compartment fire entering the fuselage through the firewall cabin heater opening, remove the aluminum cabin heat control valve and replace with a steel valve of new design Bellanca Drawing No. 15067-40.

(Bellanca Service Bulletin No. 11 dated June 20, 1947, covers this same subject.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-773](https://openairdocs.org/tcds/A-773): Bellanca Aircraft Corporation; names 4 of 4 models: 14-13-3W, 14-13-3, 14-13-2, 14-13

## 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: 131 (131 by airframe model, 0 by engine model)
- Makers: Bellanca 131

Models with the most aircraft:

- [Bellanca 14-13-2](https://openairdocs.org/model/bellanca-14-13-2): 77 aircraft (airframe model)
- [Bellanca 14-13](https://openairdocs.org/model/bellanca-14-13): 43 aircraft (airframe model)
- [Bellanca 14-13-3](https://openairdocs.org/model/bellanca-14-13-3): 11 aircraft (airframe model)

All 3 models: https://openairdocs.org/ad/47-51-13/models.md
Every aircraft: https://openairdocs.org/ad/47-51-13/aircraft.md

Its text cites no advisory circulars or STCs.

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