AD 72-16-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 506 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 510 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 511 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 511-7E | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 514 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 514-7 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 525 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 525F | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 526 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
| engine | Rolls-Royce Deutschland Ltd & Co KG | Dart 527 | ROLLS ROYCE (1971) LTD Models Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series Engines |
Unsafe Condition
Engine failures resulting from fatigue cracks of the impellers specified in Column 2 of the following tables.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the applicable impellers with ones having the same or approved part number and not exceeding their life limits within the specified flight intervals. Inspections and replacements must be done within 50 flights after the effective date or before the flight limits in Column 3, whichever is later, and repeated at intervals not exceeding Column 3's flight limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 50 flights after the effective date of this AD or before the accumulation of the number of flights specified in Column 3, for the applicable impeller, whichever occurs later, and thereafter at intervals not to exceed the number of flights specified in Column 3.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce (1971) Ltd Dart 506, 510, 511, 514, 525 through 529, 531, 532, and 542 Series engines and all variants.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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