56-02-03: Compressor Impeller
FAA order 56-02-03 is an airworthiness directive. The FAA's subject line: Compressor Impeller. It names the Rolls-Royce DART 510&511 engine: about 1 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: engine.
What it applies to as the FAA lists it
- Kind of product
- Engine
- Makes
- Rolls-Royce Deutschland Ltd & Co KG
- Models
- Dart 506, Dart 510
- Engine series
- Rolls-Royce DART 510&511 1 aircraft
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (628 characters)
56-02-03 ROLLS-ROYCE: Applies to All Dart 506 and 510 Engines.
Compliance required as indicated.
Due to the possibility of low stage compressor impeller failure, all impellers, P/N's RK13782, RK17877, RK19795, RK20156 and RK20181, must be removed from service and not reused after a maximum of 725 hours service time, except that when Rolls-Royce Modifications 335 and 348 have been accomplished the maximum service time may be increased to 750 hours.
The British Air registration Board considers this parts replacement program mandatory and the FAA concurs.
Operation beyond 750 hours total time is not authorized.
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of November 6, 2026. Connections as data: /graph/directive/56-02-03.json · aircraft systems.