AD 67-27-06

final rule

ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines

AD Number
67-27-06
Status
final_rule
Effective Date
Product Category
engine
Docket
Unknown
FR Citation
This information is not available.

Applicability

TypeManufacturerModelDetails
engine Rolls-Royce Deutschland Ltd & Co KG Dart 542-10 ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines
engine Rolls-Royce Deutschland Ltd & Co KG Dart 542-4 ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines

Unsafe Condition

Failure of fuel and oil hoses due to cracks and crazing.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

Inspect fuel and oil pressure indicator hoses with specific part numbers for cracks and crazing at specified intervals. Replace hoses if cracking or crazing is detected before further flight. Discontinue inspections after incorporating approved Modifications 1467 (fuel hoses) or 1453 (oil pressure indicator hoses).

AI-generated summary from the source AD text. Verify against the official source before acting.

Compliance Time

Compliance required as indicated, unless already accomplished.

AI-generated summary from the source AD text. Verify against the official source before acting.

Affected Aircraft

Rolls-Royce Dart Model 542-4 and 542-10 engines.

AI-generated summary from the source AD text. Verify against the official source before acting.

Federal Register Abstract

Fuel and Oil Hoses

Applicability Source Text

Show captured applicability text from the source AD
AD Final Rules - DRS_67-27-06.html
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AD Number:
67-27-06
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines
Subject:
Fuel and Oil Hoses
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/03/1967
Make:
Rolls-Royce Deutschland Ltd & Co KG
Model:
Dart 542-10 | Dart 542-4
Product Type:
Engine
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-27-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-488

AD NUMBER:   67-27-06

SUBJECT HEADING:   ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines

ACTION:  

SUMMARY:  

DATES:   Effective October 3, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
67-27-06 ROLLS-ROYCE: Amdt. 39-488 Part 39 Federal Register October 3, 1967. Applies to Dart Model 542-4 and 542-10 engines.

Compliance required as indicated, unless already accomplished.

To prevent failure of fuel and oil hoses, accomplish the following:

(a) For fuel hoses, P/N's RU.21448, RK.38339A, RK.29902, RK.38340A, RU.21447, RK.29900A, RK.38361, RU.21455A, RK.29901A, and oil pressure indicator hose P/N RU.21440A, with 700 or more hours total time in service on the effective date of this AD, within the next 100 hours' time in service after the effective date of this AD and thereafter at intervals not to exceed 150 hours' time in service from the last inspection, inspect for cracks and crazing in accordance with Rolls-Royce Alert Service Bulletin Da 73-A49 or later ARB- approved issue, or an FAA-approved equivalent.

(b) For fuel hoses, P/N's RU.21448, RK.38339A, RK.29902, RK.38340A, RU.21447, RK.29900A, RK.38361, RU.21455A, RK.29901A, and oil pressure indicator hose P/N RU.21440A, with less than 700 hours' time in service on the effective date of this AD, before the accumulation of 800 hours' time in service and thereafter at intervals not to exceed 150 hours' time in service from the last inspection, inspect for cracks and crazing in accordance with Rolls-Royce Alert Service Bulletin Da 73-A49 or later ARB-approved issue, or an FAA-approved equivalent.

(c) If cracking or crazing of the hose is detected during the inspections required by (a) and (b), before further flight, replace with a new assembly.

(d) The repetitive inspections required under (a) or (b) for the fuel hoses may be discontinued following the incorporation of ARB-approved Rolls-Royce Modification 1467, or an FAA-approved equivalent.

(e) The repetitive inspections required under (a) or (b) for the oil pressure indictor hoses may be discontinued following the incorporation of ARB-approved Rolls-Royce Modification 1453, or an FAA-approved equivalent.

This amendment effective October 3, 1967.

FOOTER:

Document Text

Show stored source text (verify against official source)
AD Final Rules - DRS_67-27-06.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
67-27-06
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines
Subject:
Fuel and Oil Hoses
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
10/03/1967
Make:
Rolls-Royce Deutschland Ltd & Co KG
Model:
Dart 542-10 | Dart 542-4
Product Type:
Engine
Product Subtype:
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 67-27-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-488

AD NUMBER:   67-27-06

SUBJECT HEADING:   ROLLS-ROYCE Model Dart Model 542-4 and 542-10 Engines

ACTION:  

SUMMARY:  

DATES:   Effective October 3, 1967.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
67-27-06 ROLLS-ROYCE: Amdt. 39-488 Part 39 Federal Register October 3, 1967. Applies to Dart Model 542-4 and 542-10 engines.

Compliance required as indicated, unless already accomplished.

To prevent failure of fuel and oil hoses, accomplish the following:

(a) For fuel hoses, P/N's RU.21448, RK.38339A, RK.29902, RK.38340A, RU.21447, RK.29900A, RK.38361, RU.21455A, RK.29901A, and oil pressure indicator hose P/N RU.21440A, with 700 or more hours total time in service on the effective date of this AD, within the next 100 hours' time in service after the effective date of this AD and thereafter at intervals not to exceed 150 hours' time in service from the last inspection, inspect for cracks and crazing in accordance with Rolls-Royce Alert Service Bulletin Da 73-A49 or later ARB- approved issue, or an FAA-approved equivalent.

(b) For fuel hoses, P/N's RU.21448, RK.38339A, RK.29902, RK.38340A, RU.21447, RK.29900A, RK.38361, RU.21455A, RK.29901A, and oil pressure indicator hose P/N RU.21440A, with less than 700 hours' time in service on the effective date of this AD, before the accumulation of 800 hours' time in service and thereafter at intervals not to exceed 150 hours' time in service from the last inspection, inspect for cracks and crazing in accordance with Rolls-Royce Alert Service Bulletin Da 73-A49 or later ARB-approved issue, or an FAA-approved equivalent.

(c) If cracking or crazing of the hose is detected during the inspections required by (a) and (b), before further flight, replace with a new assembly.

(d) The repetitive inspections required under (a) or (b) for the fuel hoses may be discontinued following the incorporation of ARB-approved Rolls-Royce Modification 1467, or an FAA-approved equivalent.

(e) The repetitive inspections required under (a) or (b) for the oil pressure indictor hoses may be discontinued following the incorporation of ARB-approved Rolls-Royce Modification 1453, or an FAA-approved equivalent.

This amendment effective October 3, 1967.

FOOTER:

Source: Official FAA Source ↗

Retrieved: Apr 8, 2026

Rights: U.S. Government Public Domain

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