# AD 48-13-02: Fuel Pump Rocker Pin

- Type: Airworthiness directive
- Status: Current
- Products: Scotts-Bell 47 47, 47B, 47B3, 47D, 47D1, 47E, 47G, 47G-2, 47G-2A, 47G-2A-1, 47G-3, 47G-3B and 12 more
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Registered aircraft: 490 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E0444AB196B7F21286256A34004E2CF2.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/48-13-02

## The airworthiness directive

48-13-02 BELL: Applies to Model 47 Series Equipped With Franklin 6V4-178-B3 and B32 Engines.

Compliance required at next preflight inspection.

Inspect fuel pump rocker pins to determine type. If pin has retaining rings which snap on each end, replace with new type pin having a head on one end and a staked washer on the other. Until new type pin is installed, daily inspection to determine the condition of the snap ring locks is required. A red paint dab for identification should be placed on all fuel pumps incorporating rocker pin change. Replacement pins are available through Aircooled Motors, Inc.

(Franklin Service Bulletin No. 64 covers this same subject.)

## Affected data sheets (3) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 2H3](https://openairdocs.org/tcds/2H3): Scott's-Bell 47 Inc; names 11 of 11 models: 47G-2A, 47G-3B, 47G-3, 47G-4A, 47G-5A, 47G-5, 47G-3B-2A, 47G-3B-2…
- [TCDS H-1](https://openairdocs.org/tcds/H-1): Scott's-Bell 47 Inc; names 9 of 9 models: 47H-1, 47B, 47B3, 47D1, 47D, 47G-2, 47G, 47…
- [TCDS 2H1](https://openairdocs.org/tcds/2H1): Scott's-Bell 47 Inc; names 4 of 4 models: 47K, 47J-2, 47J-2A, 47J

## 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: 490 (490 by airframe model, 0 by engine model)
- Makers: Bell 476, Bell-K-Copter 3, Bell Kitz Kopters 1, Bell-Allied Helicopter 1, Bell-Carson 1, Bell-Huddleston And Wilson 1, Bell-Intermountain 1, Bell-Olympic Helicopters 1, Bell-Shippey 1, Bell-Tellijohn 1

Models with the most aircraft:

- [Bell 47G-2](https://openairdocs.org/model/bell-47g-2): 87 aircraft (airframe model)
- [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1): 86 aircraft (airframe model)
- [Bell 47G](https://openairdocs.org/model/bell-47g): 55 aircraft (airframe model)
- [Bell 47D1](https://openairdocs.org/model/bell-47d1): 47 aircraft (airframe model)
- [Bell 47G-5](https://openairdocs.org/model/bell-47g-5): 40 aircraft (airframe model)
- [Bell 47G-3B-2](https://openairdocs.org/model/bell-47g-3b-2): 26 aircraft (airframe model)
- [Bell 47G-4A](https://openairdocs.org/model/bell-47g-4a): 20 aircraft (airframe model)
- [Bell 47G-2A](https://openairdocs.org/model/bell-47g-2a): 19 aircraft (airframe model)
- [Bell 47G-5A](https://openairdocs.org/model/bell-47g-5a): 19 aircraft (airframe model)
- [Bell 47G-3B](https://openairdocs.org/model/bell-47g-3b): 15 aircraft (airframe model)
- [Bell 47G-2A-1](https://openairdocs.org/model/bell-47g-2a-1): 13 aircraft (airframe model)
- [Bell 47G-4](https://openairdocs.org/model/bell-47g-4): 13 aircraft (airframe model)
- [Bell 47G3B2A](https://openairdocs.org/model/bell-47g3b2a): 7 aircraft (airframe model)
- [Bell 47H-1](https://openairdocs.org/model/bell-47h-1): 6 aircraft (airframe model)
- [Bell 47J](https://openairdocs.org/model/bell-47j): 6 aircraft (airframe model)
- [Bell 47J-2](https://openairdocs.org/model/bell-47j-2): 6 aircraft (airframe model)
- [Bell 47J-2A](https://openairdocs.org/model/bell-47j-2a): 5 aircraft (airframe model)
- [Bell 47D](https://openairdocs.org/model/bell-47d): 4 aircraft (airframe model)
- [Bell-K-Copter 47G](https://openairdocs.org/model/bell-k-copter-47g): 2 aircraft (airframe model)
- [Bell 47B](https://openairdocs.org/model/bell-47b): 1 aircraft (airframe model)

All 35 models: https://openairdocs.org/ad/48-13-02/models.md
Every aircraft: https://openairdocs.org/ad/48-13-02/aircraft.md

Its text cites no advisory circulars or STCs.

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