AD 88-02-01 R1

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AD Number:
88-02-01 R1
Document Type:
AD Final Rules
Docket Number:
Unknown
Subject Heading:
Airworthiness Directives; GULFSTREAM AEROSPACE Model G-IV Series Airplanes
Subject:
AFM Changes-Flight Director
Status:
Current
Citation:
This information is not available.
Citation Publish Date:
Effective Date:
02/13/1989
Make:
Gulfstream Aerospace Corporation
Model:
G-IV
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Superseded AD: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Superseded By: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: 88-02-01 R1
CITATION:   This information is not available.

PAGE NUMBER:  

DOCKET NUMBER:   Unknown

AMENDMENT:   39-6105

AD NUMBER:   88-02-01 R1

SUBJECT HEADING:   Airworthiness Directives; GULFSTREAM AEROSPACE Model G-IV Series Airplanes

ACTION:  

SUMMARY:  

DATES:   Effective February 13, 1989.

ADDRESSES:  

FOR FURTHER INFORMATION CONTACT:  

SUPPLEMENTARY INFORMATION:  

REGULATORY TEXT:   88-02-01 R1 GULFSTREAM AEROSPACE: Amendment 39-5849 as amended by Amendment 39-6105.

Applicability: Model G-IV series airplanes, Serial Numbers 1000 through 1059, certificated in any category.

Compliance: Required as indicated, unless previously accomplished.

To prevent the potential display and use of hazardously misleading information from the flight guidance computer (FGC) during an ILS approach, accomplish the following:

A. Prior to further flight, add the following to the limitations section of the Airplane Flight Manual (AFM) and notify all crewmembers. This may be accomplished by inserting a copy of this AD in the AFM:

"ILS approaches utilizing the flight director and/or autopilot are prohibited."

B. Prior to further flight, affix an appropriate placard(s) on the instrument panel in full view of both crewmembers, stating:

"FLIGHT DIRECTOR/COUPLED ILS APPROACHES PROHIBITED."

C. Prior to further flight, affix an appropriate placard to the Approach Mode Arm (APR) switch on the autopilot control panel stating:

"USE PROHIBITED."

D. Within 15 days after the effective date of this AD, disable the approach mode in the autopilot/flight director in a manner approved by the Manager, Atlanta Aircraft Certification Office, FAA, Central Region.

E. 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 Manger, Atlanta Aircraft Certification Office, FAA, Central Region.

NOTE: The request should be forwarded through a FAA Principal Maintenance Inspector (PMI), who may add comments and then send it to the Manager, Atlanta Aircraft Certification Office.

F. Installation of the modification of the autopilot/radio altimeter in accordance with Gulfstream Aerospace Aircraft Service Change (ASC) #53A, dated May 12, 1988, constitutes terminating action for the requirements of paragraphs A. through D., above.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to Gulfstream Aerospace Corporation, P.O. Box 2206, Savannah, Georgia 31402-2206. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or FAA, Central Region, Atlanta Aircraft Certification Office, 1669 Phoenix Parkway, Suite 210C, Atlanta, Georgia.

Airworthiness Directive 88-02-01 (Amendment 39-5849) was effective March 4, 1988, except to those to whom it was made immediately effective by priority letter AD 88-02-01 issued January 15, 1988.

This amendment (39-6105, AD 88-02-01 R1) becomes effective February 13, 1989.

FOOTER: