AD 62-19-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce Limited | Tyne 512 | ROLLS-ROYCE Models Tyne 512 and 515 Engines |
| engine | Rolls-Royce Limited | Tyne 515 | ROLLS-ROYCE Models Tyne 512 and 515 Engines |
Unsafe Condition
Pre-modification 750 flame tubes may fail in flight due to insufficient time in service limits, leading to engine flameout or damage.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace pre-modification 750 flame tubes with new pre-modification 750 or modification 750 flame tubes based on engine modification status and accumulated hours. Engines without Modification 549 must replace tubes within 25 hours after AD effective date if over 325 hours, or before 350 hours if under. Engines with Modification 549 must replace within 50 hours after AD effective date if over 450 hours, or before 500 hours if under. New pre-modification tubes must be replaced with modification 750 tubes before 350 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the specified hours' time in service as outlined in the AD, effective October 2, 1962.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Rolls-Royce Tyne 512 and 515 engines with pre-modification 750 flame tubes installed.
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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