# Bristol Si AVON-525B

- Type: Engine model (FAA registry)
- Registry code: 10187
- Manufacturer (registry): BRISTOL SI
- Model: AVON 525B
- Engine type: Turbo-jet
- Power: 10,250 lb thrust
- Data sheet: [TCDS E-307](https://openairdocs.org/tcds/E-307) (OpenAirDocs)
- Holder: Rolls-Royce Limited
- Installed in: 0 registered aircraft
- Page: https://openairdocs.org/engine/bristol-si-avon-525b

Model codes come from the FAA registry's reference file.

## ADs that may apply (OpenAirDocs)

Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

None matched.

## Registered aircraft

None registered with this engine model now.

## NTSB investigations

None matched to aircraft with this engine model.

## FAA accident and incident reports

None matched to aircraft with this engine model.

## STCs that may be installed (OpenAirDocs) (1)

Approved for this engine model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [STC SE748EA](https://openairdocs.org/stc/SE748EA): Installation of GLA ignition exciter. General Laboratory Association Inc

## PMA parts (OpenAirDocs) (7)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this engine model on its data sheet, so check the FAA record before relying on it. Newest first.

- [43503](https://drs.faa.gov/browse/excelExternalWindow/C6D504FE2AFEAE958525704C005D1172.0001): Exciter, Ignition. Unison Industries · Replaces RR 2-02J-89 · Jan 26, 1998
- [43663](https://drs.faa.gov/browse/excelExternalWindow/B9BA937D1B00E7A38525704C005D1176.0001): Exciter, Ignition. Unison Industries · Replaces RR 2-02J-089-001 · Jan 26, 1998
- [CO 58720](https://drs.faa.gov/browse/excelExternalWindow/05843CE9D49488AB8525704D00505DE4.0001): Lead, ignition. Unison Industries · Replaces Rolls Royce · Jan 26, 1998
- [CO 58719](https://drs.faa.gov/browse/excelExternalWindow/0231DC46A1FA3E458525704D00505DE3.0001): Lead, ignition. Unison Industries · Replaces Rolls Royce · Jan 26, 1998
- [43503](https://drs.faa.gov/browse/excelExternalWindow/4B3987F1CC7996D98525704C005D10A0.0001): Exciter. Unison Industries LLC · Dec 5, 1994
- [43663](https://drs.faa.gov/browse/excelExternalWindow/075D2CA77F8787088525704C005D10A2.0001): Exciter. Unison Industries LLC · Dec 5, 1994
- [FHE176A](https://drs.faa.gov/browse/excelExternalWindow/6B5B56C2EEFB0EEC8525703F004A6177.0001): Igniter. Champion Aerospace LLC · Replaces Rolls Royce CR103 · Dec 6, 1988

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