AD 89-25-06

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AD Number:
89-25-06
Document Type:
AD Final Rules
Docket Number:
89-NM-140-AD
Subject Heading:
Airworthiness Directives; FOKKER Model F-28 Series Airplanes
Subject:
Rear Spar Web Plate
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
01/03/1990
Make:
Fokker Services
Model:
F.28 Mark 0070 | F.28 Mark 0100 | F.28 Mark 1000 | F.28 Mark 2000 | F.28 Mark 3000 | F.28 Mark 4000
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Superseded AD: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Superseded By: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: 89-25-06
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   89-NM-140-AD

AMENDMENT:   39-6406

AD NUMBER:   89-25-06

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

ACTION:  

SUMMARY:  

DATES:   Effective January 3, 1990.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   89-25-06 FOKKER: Amendment 39-6406. Docket No. 89-NM-140-AD.

Applicability: Model F-28 series airplanes, Serial Numbers 11003 through 11241, and 11991 and 11992, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent reduced structural capability of the wing due to fatigue cracks, accomplish the following:

A. Perform external high-frequency eddy current inspection of the rear spar web plate between Wing Stations 4790 and 5280, in accordance with Part 1 of Fokker Service Bulletin F28/57-84, dated April 7, 1989, and the following schedule:

1. For airplanes that have accumulated fewer than 45,000 landings, inspect within the next 2,000 landings after the effective date of this AD or prior to the accumulation of 35,000 landings, whichever occurs later.

2. For airplanes that have accumulated 45,000 landings or more but less than 55,000 landings, inspect within the next 1,000 landings after the effective date of this AD.

3. For airplanes that have accumulated 55,000 landings or more, inspect within 500 landings after the effective date of this AD.

B. If cracks are found, repair prior to further flight, in accordance with a method approved by the Manager, Standardization Branch, ANM-113, FAA, Northwest Mountain Region.

C. An alternate means 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, Northwest Mountain Region.

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

D. 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.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Fokker Aircraft USA, Inc., 1199 North Fairfax Street, Suite 500, Alexandria, Virginia 22314. These documents may be examined at the FAA, Northwest Mountain Region, Transport Airplane Directorate, 17900 Pacific Highway South, Seattle, Washington, or the Standardization Branch, 9010 East Marginal Way South, Seattle, Washington.
This amendment (39-6406, AD 89-25-06) becomes effective on January 3, 1990.

FOOTER: