# AD 54-01-03: Fuel Strainer Screen

- Type: Airworthiness directive
- Status: Current
- Products: Orlando Helicopter Airways HRS-1/CH-19, HRS-3/H-19B, S-55, S-55B and S-55C
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Rotorcraft
- Registered aircraft: 17 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1F0BE74A07E9D38D86256A4D00500357.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/54-01-03

## The airworthiness directive

54-01-03 SIKORSKY: Applies to All Model S-55 Helicopters.

Compliance required prior to next flight.

Finger fuel strainer installed on all tanks should be removed and inspected to determine whether it incorporates a small disc screen located inside the body of the strainer. This disc screen should be removed if found to be incorporated, since it would tend to restrict fuel flow if it became clogged with foreign material.

(Sikorsky Service Information Circular No. 1430-410, dated November 9, 1953, covers the same inspection modification.)

## Affected data sheets (2) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS 1H4](https://openairdocs.org/tcds/1H4): Centerpointe Aerospace Inc.; names 3 of 3 models: S-55C, S-55, S-55B
- [TCDS HR1SO](https://openairdocs.org/tcds/HR1SO): Orlando Helicopter Airways Inc.; names 2 of 10 models: HRS-3/H-19B, HRS-1/CH-19

## 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: 17 (17 by airframe model, 0 by engine model)
- Makers: Sikorsky 15, Sikorsky/Orlando 1, Sikorsky/Vertical 1

Models with the most aircraft:

- [Sikorsky S-55B](https://openairdocs.org/model/sikorsky-s-55b): 9 aircraft (airframe model)
- [Sikorsky S-55](https://openairdocs.org/model/sikorsky-s-55): 3 aircraft (airframe model)
- [Sikorsky S55B](https://openairdocs.org/model/sikorsky-s55b): 3 aircraft (airframe model)
- [Sikorsky/Orlando S-55](https://openairdocs.org/model/sikorsky-orlando-s-55): 1 aircraft (airframe model)
- [Sikorsky/Vertical S-55](https://openairdocs.org/model/sikorsky-vertical-s-55): 1 aircraft (airframe model)

All 5 models: https://openairdocs.org/ad/54-01-03/models.md
Every aircraft: https://openairdocs.org/ad/54-01-03/aircraft.md

Its text cites no advisory circulars or STCs.

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