AD 72-14-01

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AD Number:
72-14-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
DOWTY ROTOL, LTD Models (c)R130/4-20-4/12E, (c)R186/4-30-4/16, (c)R187/4-30-4/18, (c)R193/4-30-4/50...Show more
Subject:
Blade Bearing Retaining Bolts
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
07/22/1972
Make:
Dowty Propellers
Model:
(c) R.209/4-40-4.5 | (c) R.245/4-40-4.5 | (c) R.259/4-40-4.5 | (c) R130/4-20-4/ | (c) R148/4-20-4/ |...Show more
Product Type:
Propeller
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Superseded AD: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Superseded By: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: 72-14-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-1473

AD NUMBER:   72-14-01

SUBJECT HEADING:   DOWTY ROTOL, LTD Models (c)R130/4-20-4/12E, (c)R186/4-30-4/16, (c)R187/4-30-4/18,
(c)R193/4-30-4/50, (c)R184/4-30-4/50, (c)R259/4-40-4.5/17, (c)R148/4-20-4/21E, (c)R175/4-30-4/13E, (c)R179/4- 20-4/33, (c)R257/4-30-4/60, (c)R245/4-40-4.5/13, and (c)R209/4-40-4.5/2 Propellers

ACTION:  

SUMMARY:  

DATES:   Effective July 22, 1972.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
72-14-01 DOWTY ROTOL, LTD: Amdt. 39-1473. Applies to Dowty Rotol Propeller Types (c)R130/4-20-4/12E, (c)R186/4-30-4/16, (c)R187/4-30-4/18, (c)R193/4-30-4/50, (c)R184/4-30-4/50, (c)R259/4-40-4.5/17, (c)R148/4-20-4/21E, (c)R175/4-30-4/13E, (c)R179/4- 20-4/33, (c)R257/4-30-4/60, (c)R245/4-40-4.5/13, and (c)R209/4-40-4.5/2. These propellers are installed on, but not necessarily limited to, BAC Viscount Models 744, 745D, and 810; Armstrong Whitworth Model Argosy AW.650 Series 101; Fairchild and Fokker Models F27 and F227; Handley Page Model Herald; and Grumman Model Gulfstream G-159 airplanes.

Compliance is required as indicated unless already accomplished.

To prevent failure of a propeller blade due to the disengagement of the blade bearing retaining bolts resulting from excessive wear on the teeth of the locking segments, accomplish the following:

Within the next 5,000 hours' time in service or at the next propeller overhaul, after the effective date of this AD, whichever occurs sooner, incorporate Dowty Rotol Modification No. (c) VP.2676 (Rev. 1) in accordance with Dowty Rotol Limited Service Bulletin No. 61-714, Revision 3, dated July 26, 1971, or an FAA-approved equivalent.

This amendment becomes effective 22 July, 1972.

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