AD 2002-07-02 Airworthiness Directives; Israel Aircraft Industries, Ltd., Model Galaxy Airplanes and Model Gulfstream 200 Series Airplanes

Models named: Galaxy, Gulfstream 200 series. Read the applicability below — it usually turns on serial or part numbers too.

Model Galaxy airplanes and Model Gulfstream 200 series airplanes, certificated in any category, serial numbers 003 through 057 inclusive. Note 1: This AD applies to each airplane identified in the preceding applicability provision, regardless of whether it has been modified, altered, or repaired in the area subject to the requirements of this AD. For airplanes that have been modified, altered, or repaired so that the performance of the requirements of this AD is affected, the owner/operator must request approval for an alternative method of compliance in accordance with paragraph (e) of this AD. The request should include an assessment of the effect of the modification, alteration, or repair on the unsafe condition addressed by this AD; and, if the unsafe condition has not been eliminated, the request should include specific proposed actions to address it.

Required as indicated, unless accomplished previously. To prevent failure of a main landing gear (MLG) actuator to fully extend and retract, which could prevent proper engagement of the downlock mechanism and result in collapse of the MLG during landing, accomplish the following: Inspections (a) Do the inspections in paragraphs (a)(1) and (a)(2) of this AD, according to Galaxy (Israel Aircraft Industries) Alert Service Bulletin GALAXY-32A-125, Revision 1, dated February 4, 2002. (1) Within 3 days after the effective date of this AD, do a general visual inspection of the left and right MLG actuators for leakage of hydraulic fluid. Repeat this inspection before each flight, until paragraph (c) of this AD is accomplished. Note 2: For the purposes of this AD, a general visual inspection is defined as: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or drop-light, and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.” (2) Within 15 flight cycles after the effective date of this AD, do a one-time detailed inspection of the left and right MLG actuators for internal abrasions or scratches. Note 3: For the purposes of this AD, a detailed inspection is defined as: “An intensive visual examination of a specific structural area, system, installation, or assembly to detect damage, failure, or irregularity. Available lighting is normally supplemented with a direct source of good lighting at intensity deemed appropriate by the inspector. Inspection aids such as mirror, magnifying lenses, etc., may be used. Surface cleaning and elaborate access procedures may be required.” Replacement (b) If leakage of hydraulic fluid or an internal abrasion or scratch outside the limits specified in Galaxy (Israel Aircraft Industries) Alert Service Bulletin GALAXY-32A-125, Revision 1, dated February 4, 2002, is found on either MLG actuator during any inspection required by paragraph (a) of this AD: Before further flight, replace the discrepant MLG actuator with a new, improved actuator, or with a new or serviceable actuator that has been inspected for and is without internal abrasions or scratches, according to the service bulletin. Replacement of the existing MLG actuator with a new, improved actuator ends the repetitive inspections of that actuator. Optional Terminating Action (c) Replacement of the existing left and right MLG actuators with new, improved actuators having part number 4AS2521010-507 (left side) or -508 (right side), as applicable, according to Galaxy (Israel Aircraft Industries) Alert Service Bulletin GALAXY-32A-125, Revision 1, dated February 4, 2002, ends the repetitive inspections required by paragraph (a)(1) of this AD. Spares (d) As of the effective date of this AD, no person may install an MLG actuator with part number 4AS2521010-505 (left side) or -506 (right side) on any airplane, unless it has been inspected according to paragraph (a)(2) of this AD and found to be without any internal abrasion or scratch outside the limits specified in Galaxy (Israel Aircraft Industries) Alert Service Bulletin GALAXY-32A-125, Revision 1, dated February 4, 2002. Alternative Methods of Compliance (e) An alternative method of compliance or adjustment of the compliance time that provides an acceptable level of safety may be used if approved by the Manager, International Branch, ANM-116, Transport Airplane Directorate, FAA. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, International Branch, ANM-116. Note 4: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the International Branch, ANM-116. Special Flight Permits (f) Special flight permits may be issued in accordance with sections 21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199) to operate the airplane to a location where the requirements of this AD can be accomplished. Incorporation by Reference (g) The actions shall be done in accordance with Galaxy (Israel Aircraft Industries) Alert Service Bulletin GALAXY-32A-125, Revision 1, dated February 4, 2002. 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 Gulfstream Aerospace Corporation, P.O. Box 2206, Mail Station D25, Savannah, Georgia 31402. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Office of the Federal Register, 800 North Capitol Street, NW., suite 700, Washington, DC. Note 5: The subject of this AD is addressed in Israeli emergency airworthiness directive 32-02-01-24, dated February 13, 2002. Effective Date (h) This amendment becomes effective on April 18, 2002. Issued in Renton, Washington, on March 25, 2002. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 02-7750 Filed 4-2-02; 8:45 am] BILLING CODE 4910-13-P