AD 82-08-01

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AD Number:
82-08-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
DOWTY ROTOL Models (c)R.209/4-40.5/2, (c)R.245/4-40.5/13, and (c)R.259/4-40-4.5/17 Propellers
Subject:
Hub Group
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
04/12/1982
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
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Superseded AD: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Superseded By: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: 82-08-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4356

AD NUMBER:   82-08-01

SUBJECT HEADING:   DOWTY ROTOL Models (c)R.209/4-40.5/2, (c)R.245/4-40.5/13, and (c)R.259/4-40-4.5/17 Propellers

ACTION:  

SUMMARY:  

DATES:   Effective April 12, 1982.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
82-08-01 DOWTY ROTOL: Amendment 39-4356. Applies to Dowty Rotol Propellers (c)R.209/4-40.5/2, installed on Nihon YS-11 airplanes; (c)R.245/4-40.5/13, installed on Convair Models 600(240D) and 640(340D); and (c)R.259/4-40-4.5/17, installed on Convair Model 640(440D) airplanes, not modified by Dowty Rotol Modification (c)VP2693 in accordance with Dowty Rotol SB No. 61-728, Revision 3, dated July 17, 1981.

Compliance required as indicated unless already accomplished.

To detect and prevent loosening of the propeller blade groups, accomplish the following:
(a) Unless already accomplished, within the next 50 hours' time in service after the effective date of this AD, and thereafter at intervals not to exceed 300 hours' time in service from the last inspection, inspect the locking of the blade groups in the hub group, in accordance with Dowty Rotol Service Bulletin 61-581, Revision 3, dated July 17, 1981, or an FAA-approved equivalent.

(b) If, during the inspections required by paragraph (a), it is found that the red line position markings across the bearing center race and the hub have separated by more than 0.100 of an inch, before further flight, replace the propeller with a serviceable propeller of the same model number.

(c) If, during the inspections required by paragraph (a), it is found that the lockpieces on the rear of the cylinder are damaged or they are not engaging with and locking the serrations of the bearing center race of the blade group; or that the set bolts securing the lockpieces are not secure or they are bent; or that the shims under the distance blocks on which the lockpieces are mounted have extruded, before further flight, replace the defective parts with serviceable parts of the same part number.

This AD supersedes AD 67-32-02.

This amendment becomes effective April 12, 1982.

FOOTER: