AD 91-23-05

AD Final Rules - DRS_91-23-05.html
Copy URL
Print/Save as PDF
Document Versions
 Feedback
Details
AD Number:
91-23-05
Document Type:
AD Final Rules
Docket Number:
91-NM-115-AD
Subject Heading:
Airworthiness Directives; FOKKER Model F-28 Mark 0100 Series Airplanes
Subject:
Aileron/Rudder Servomounts
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
12/17/1991
Make:
Model:
F.28 Mark 0100
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
AIRWORTHINESS DIRECTIVES FINAL RULES: 91-23-05
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   91-NM-115-AD

AMENDMENT:   39-8074

AD NUMBER:   91-23-05

SUBJECT HEADING:   Airworthiness Directives; FOKKER Model F-28 Mark 0100 Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective December 17, 1991.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:  
91-23-05 FOKKER: Amendment 39-8074. Docket No. 91-NM-115-AD.
Applicability: Model F-28 Mark 0100 series airplanes; Serial numbers 11244 through 11306, 11308, 11310, 11312, 11313, 11314, 11316, and 11318; certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent reduced controllability of the airplane, accomplish the following:

(a) Within 6 months after the effective date of this AD:

(1) Replace all aileron, elevator, and rudder servomotors, P/N 622-7925-302, with modified servomotors, P/N 622-7925-303, in accordance with Fokker Service Bulletin F100-22-015, dated November 16, 1990; and

(2) Replace all aileron and rudder servomounts, P/N 622-7926-302; and elevator servomounts, P/N 622-8069-302; with modified servomounts, P/N 622-7926-303 and 622-8069-303, respectively, in accordance with Fokker Service Bulletin F100-22-018, Revision 1, dated January 24, 1991.

(b) An alternative method of compliance or adjustment of the compliance time, which provides an acceptable level of safety, may be used when approved by the Manager, Standardization Branch, ANM- 113, FAA, Transport Airplane Directorate.

NOTE: The request should be forwarded through an FAA Principal Maintenance Inspector, who may concur or comment and then send it to the Manager, Standardization Branch, ANM-113.

(c) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate airplanes to a base in order to comply with the requirements of this AD.

(d) The replacement requirements shall be done in accordance with Fokker Service Bulletin F100-22-015, dated November 16, 1990, and Fokker Service Bulletin F100-22-018, Revision 1, dated January 24, 1991. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR Part 51. Copies may be obtained from Fokker Aircraft USA, Inc., 1199 North Fairfax Street, Alexandria, Virginia 22314. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue S.W., Renton, Washington; or at the Office of the Federal Register, 1100 L Street N.W., Room 8401, Washington, D.C.

This amendment (39-8074, AD 91-23-05) becomes effective on December 17, 1991.

FOOTER: