AD 82-24-01

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AD Number:
82-24-01
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; ENSTROM HELICOPTER CORPORATION Model F-28A, F-28C, F-28F, 280, 280C, a...Show more
Subject:
Drivebelt Clutch Mechanism
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
11/30/1982
Make:
Enstrom Helicopter Corporation, The
Model:
280 | 280C | 280F | F-28A | F-28C | F-28F
Product Type:
Aircraft
Product Subtype:
Rotorcraft
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 82-24-01
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-4497

AD NUMBER:   82-24-01

SUBJECT HEADING:   Airworthiness Directives; ENSTROM HELICOPTER CORPORATION Model F-28A, F-28C, F-28F, 280, 280C, and 280F Helicopters

ACTION:  

SUMMARY:  

DATES:   Effective November 30, 1982.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
82-24-01 ENSTROM HELICOPTER CORPORATION: Amendment 39-4497. Applies to Model F-28A, F-28C, F-28F, 280, 280C, and 280F helicopters certificated in all categories.

Compliance required as indicated unless already accomplished.

To prevent possible in-flight drivebelt clutch disengagement, accomplish the following:

(a) Before further flight after the effective date of this AD, and thereafter at intervals not to exceed 100 hours' time in service from the last inspection:

(1) Inspect the drivebelt clutch mechanism, in accordance with Enstrom Service Information Letter 0080, Revision A, dated August 4, 1982, or FAA approved equivalent, and the Maintenance/Manual Supplement for the respective Models, to ascertain that the mechanism is properly rigged.

NOTE: When properly rigged the clutch actuating cable should move freely allowing full clutch engagement. Clutch mechanisms experiencing binding of the clutch actuating cable, although properly rigged and lubricated, may have lubricant hardened in the cable assembly due to engine heat.

(2) Replace any cable found to bind, preventing full clutch engagement, prior to further flight with suitable airworthy parts.

(3) Lubricated the clutch actuating cable with Aero Shell 14 or FAA approved equivalent.

(b) Within the next 25 hours' time in service after the effective date of this AD, unless already accomplished, install clutch cable heat shield P/N 28-16542-11 in accordance with Enstrom Service Directive Bulletin 0055, Revision A, dated April 2, 1982, or FAA approved equivalent.

NOTE: Enstrom Helicopter Models equipped with right pilot-in-command kits P/N 28- 01002 or P/N 28-01012; or electric clutch actuator kit P/N 28-01005 are exempt from this paragraph.

(c) Within the next 50 hours' time in service after the effective date of this AD, unless already accomplished, install clutch engagement overcenter lock warning light kit P/N 28- 19035-3 in accordance with Enstrom Service Directive Bulletin 0061 dated September 20, 1982, or FAA approved equivalent.

(d) Any equivalent method of compliance with this AD must be approved by the Manager, Chicago Aircraft Certification Office, Federal Aviation Administration, 2300 East Devon Avenue, Des Plaines, Illinois 60018.

(e) In accordance with FAR 21.197, flight is permitted to a base where the inspection required by this AD may be accomplished.

This amendment becomes effective November 30, 1982.

FOOTER: