Airworthiness Directives

MP021392 MP034808 MP0A0134 MP0A0645 MP022819 MP034810 MP0A0138 MP0A0648 MP023561 MP034821 MP0A0140 MP0A0652 MP024832 MP034822 MP0A0141 MP0A0659 MP024833 MP034823 MP0A0161 MP0A0660 MP025436 MP035315 MP0A0277 MP0A0744 MP025458 MP035323 MP0A0278 MP0A0751 MP025472 MP035343 MP0A0280 MP0A0755 MP027903 MP035344 MP0A0281 MP0A0797 MP027906 MP035345 MP0A0286 MP0A0813 MP028163 MP035346 MP0A0287 MP0A0816 MP028175 MP035350 MP0A0292 MP0A0819 MP028176 MP035816 MP0A0293 MPOA0820 MP028574 MP035821 MP0A0354 MP0A0822 MP028711 MP035823 MP0A0396 MP0A0831 MP029244 MP035829 MP0A04U MP0A0875 MP029245 MP035836 MP0A0446 MP0A0876 MP029246 MP035844 MP0A0450 MP0A0882 MP031291 MP035847 MP0A0458 MP0C0889 MP031292 MP035848 MP0A0459 MP0C3154 MP031304 MP036810 MP0A0571 MPX32453 MP031736 MP036814 MP0A0587 RP021891 MP032456 MP036829 MP0A0589 RP022426 MP033570 MP037109 MP0A0600 RP023605 MP034468 MP037135 MP0A0604 RP023614 MP034484 The manufacturer’s specifications and procedures identified in this directive are in corporated herein and made part hereof pursuant to 5 U.S.C. 553(a)(1). All persons affected by this directive who have not al ready received these documents from the manufacturer may Obtain copies upon re quest to General Electric Co., Cincinnati, Ohio 45215. These documents may also be examined at the Great Lakes Regional Office, 2300 East Devon Avenue, Des Plaines, 111. 60018, and at FAA Headquar ters, 800 Independence Avenue SW., Wash ington, D.C. 20591. A historical file on this airworthiness directive which includes in corporated material in full is maintained by the FAA at its headquarters in Washington, D.C., and the Great Lakes Region. This amendment becomes effective April 6, 1978. (Secs. 313(a), 601, 603, Federal Aviation Act of 1958, as amended (49 U.S.C. 1354(a), 1421, 1423); sec. 6(c), Department of Transporta tion Act (49 U.S.C. 1655(c)); 14 CFR 11.89.) N ote.—The Federal Aviation Administra tion has determined that this document FEDERAL REGISTER, V O L 43, NO . 64— M ON D AY, APRIL 3, 1978 13868 does not contain a major proposal requiring preparation o f an Economic Impact State ment under Executive Order 11821, as amended by Executive Order 11949, and OMB Circular A-107. Issued in Des Plaines, 111., on March 17, 1978. Leon C. D a ug h er ty, Acting Director, Great Lakes Region. N ote.—The incorporation by reference in the preceding document was approved by the Director o f the Federal Register on June 19,1967. [FR Doc. 78-8593 Filed 3-31-78; 8:45 am] [4910-13] [Docket No. 17549; Arndt. 39-3170] PART 39— AIRWORTHINESS DIRECTIVES Hawker Siddeley Aviation, Ltd., DH/ BH/HS-125 Airplanes AGENCY: Federal Aviation Adminis tration (FAA), DOT. ACTION: Final rule. SUMMARY: This amendment adopts a new airworthiness directive (AD) which requires replacement of the ex isting radome lightning diverter strips with new externally mounted light alloy strips on Hawker Siddeley Avi ation, Ltd., Model DH/BH/HS-125 air planes. The proposed AD is needed to prevent serious damage to the radome from lightning strikes which could result in loss of a radome and a possi ble hazard to persons and property on the ground. DATES: Effective May 3, 1978. Com pliance required as indicated. ADDRESSES: The applicable service bulletin may be obtained from: Hawker Siddeley Aviation Inc., Suite 206, Blake Building, 1025 Connecticut Avenue NW., Washington, D.C., 20036, telephone: 202-223-9350. A copy of the Service Bulletin is con tained in the Rules Docket, Room 916, 800 Independence Avenue SW., Wash ington, D .C .20591. FOR FURTHER INFORMATION CONTACT: D. G. Jacobsen, Aircraft Certifica tion Staff, AEU-100, Europe,, Africa, and Middle East Region, Federal Aviation Administration, c /o Ameri can Embassy, Brussels, Belgium, telephone 513.38.30. SUPPLEMENTARY INFORMATION: A proposal to amend Part 39 of the Federal Aviation Regulations to in clude an airworthiness directive, re quiring replacement of the existing radome lightning diverter strips with new externally mounted light alloy strips on Hawker Siddeley Aviation, RULES A N D REGULATIONS- Ltd., Model DH/BH/HS-125 airplanes, was published in the F ederal R egister at 43 FR 3132 on January 23, 1978. The proposal was prompted by reports of serious damage to the radome from lightning strikes which could result in a loss of a radome and a possible hazard to persons and property on the ground. Interested persons have been afford ed an opportunity to participate in the making of the amendment. No objec tions were received. Accordingly, the proposal is adopted without change. The principal authors of this docu ment are Mr. F. J. Kamowski, Europe, Africa, and Middle East Region, F. Kelley, Flight Standards Service, and S. Podberesky, Office of the Chief Counsel. A d o ptio n of the A mendment Accordingly, pursuant to the author ity delegated to me by the Administra tor, §39.13 of Part 39 of the Federal Aviation Regulations (14 CFR 39.13) is amended by adding the following new airworthiness directive: H a w k e r S iddeley A v ia t io n , L td. Applies to Model DH/BH/HS-125 airplanes, certi ficated in all categories, all series, up to and including the 700A series, but ex cluding all 700A series airplanes except S /N 0201, 0202, 0203, and 0204, and also excluding S/N25/025. Compliance is required as indicated, unless already accomplished. To prevent possible lightning strike damage to the radome which could result in loss of the radome, Within the next 150 hours time in service after the effective date o f this AD, remove the lightning diverter strips from the radome and install new di verter strips in accordance with the section entitled “ Accomplishment Instructions” and associated drawings o f Hawker Siddeley Avi ation, Ltd., Modification Service Bulletin 53-50(2626), dated August 26, 1977, includ ing Revision 1 (pages 1, 5, 6, and 8) dated October 4, 1977, or an FAA-approved equiv alent. This amendment becomes effective May 3, 1978. (Secs. 313(a), 601, 603, Federal Aviation Act o f 1958, as amended, (49 U.S.C. 1354(a), 1421, 1423); sec. 6(c), Department o f Trans portation Act (49 U.S.C. 1655(c)); 14 CFR 11.89.) N o te.—The Federal Aviation Administra tion has determined that this document does not contain a major proposal requiring preparation o f an Economic Impact State ment under Executive Order 11821, as amended by Executive Order 11949, and OMB Circular A-107. Issued in Washington, D.C., on March 27, 1978. J. A. F errarese, Acting Director, Flight Standards Service. [FR Doc. 78-8598 Filed 3-31-78; 8:45 am] [4910-13] [Docket No. 17524, Arndt. 39-3171] PART 39— AIRWORTHINESS DIRECTIVES Rolls Royce Dart Engines AGENCY: Federal Aviation Adminis tration (FAA), DOT. ACTION: Final rule. SUMMARY: This amendment adopts a new airworthiness directive (AD) which requires inspections for wear, and replacement as necessary of the flame tube liners and suspension pins on Rolls Royce Dart engines Series 542 and 543, to prevent possible over heating and failure of the turbine rotors on these engines. DATES: Effective May 3, 1978. Com pliance required as indicated. ADDRESSES: The applicable service bulletin may be obtained from: Rolls Royce, Ltd., P.O. Box 31, Derby DE28BJ, England. A copy of the ser vice bulletin is contained in the Rules Docket, Room 916, 800 Independence Avenue SW., Washington, D.C. 20591. FOR FURTHER INFORMATION CONTACT: Don C. Jacobsen, Chief, Aircraft Certification Staff, AEU-100, Europe, Africa, and Middle East Region, Federal Aviation Adminis tration, c /o American Embassy, Brussels, Belgium, Tel. 513.38.30. SUPPLEMENTARY INFORMATION: A proposal to amend Part 39 of the Federal Aviation Regulations to in clude an airworthiness directive, re quiring inspections for wear, and re placement as necessary of the flame tube liners and suspension pins on cer tain Rolls Royce Dart engines Series 542 and 543, was published in the F ed eral R egister at 43 FR 975, on Janu ary 5, 1978. The proposal was prompt ed by reports of failures in the flame tube support system on certain Rolls Royce Dart engines that resulted in overheating and failure of the high pressure turbine rotor. Interested persons have been afford ed an opportunity to participate in the making of the amendment. No objec tions were received. Accordingly, the proposal is adopted without change. The principal authors of this docu ment are P.A. Cormaci, Europe, Africa, and Middle East Region, F. Kelley, Flight Standards Service, and P. Lynch, Office of the Chief Counsel. A d o ptio n of the A mendment Accordingly, pursuant to the author ity delegated to me by the Administra tor, §39.13 of Part 39 of the Federal Aviation Regulations (14 CFR 39.13) is amended by adding the following new airworthiness directive: FEDERAL REGISTER, VOL. 43, NO . 64— M OND AY, APRIL 3, 1978 R olls R o y c e , Ltd. Applies to Dart engines Series 542-4, 542-10, 543-10, and var iants, featuring any o f the following, Modifications 1243, 1244, 1432, 1448, or 1607, used on, but not limited to Convair 600 and 640 aircraft, and Nihon YS-11 and YS-11A series aircraft. Compliance is required as indicated. To prevent excessive wear in flame tube liners and suspension pins that may result in loss o f flame tube support causing over heating and failure o f the turbine rotors, ac complish the following: (a) Within the next 500 hours engine time in service after th e effective date o f this AD, unless already accomplished, inspect the flame tube liners and suspension pins for wear in accordance with the instructions contained in paragraph 4A o f Rolls Royce Dart Service Bulletin Da 72-431, dated July 1, 1977 (hereafter R R SB 72-431), or an equivalent approved by the Chief, Aircraft Certification Staff, FAA f Europe, Africa, and Middle East Region, care of American Embassy, APO New York, New York 09667 (hereafter FAA-approved equivalent). (b) If, during an inspection required by this AD, flame tube liner or suspension pin wear is found to exceed the limits given in paragraph 4A(1) of R R SB 72-431, or an FAA-approved equivalent, before further flight, except that the aircraft may be flown in accordance with FAR §§ 21.197 and 21.199 to a base where the work can be performed, replace the affected part with a serviceable part and reinspect in accordance with either paragraph (c) or (d) o f this AD, as applica ble. (c) If, during an inspection required by this AD, flame tube liner wear is 0.030 or greater inches on any one flame tube o f any engine in the operator’s fleet, determine the flame tube time in service since new or over hauled, and establish a fleet repetitive in spection time interval in accordance with paragraph 4.A(l)(c)(ii) or 4.A(2) as applica ble, o f R R SB 72-431 or an FAA-approved equivalent. (d) If, during an inspection required by this AD, flame tube liner wear is less than O. 030 inches on any one flame tube of any engine in the operator’s fleet, replace, if necessary, the affected parts according to paragraph (b) o f this AD and reinspect in accordance with paragraph 4.A(4) of R R SB 72/431, or an FAA-approved equivalent, at intervals not to exceed 2000 hours engine time in service from the last inspection. (e) If, during a repetitive inspection re quired by paragraph (c) or (d) o f this AD, flame tube liner wear is 0.030 or greater inches on any one flame tube o f an engine in the operator’s fleet, reduce the Repetitive Inspection Interval for all engines in the fleet in accordance with paragraph 4.A(2) of R R SB 72-431, or an FAA-approved equiv alent. (f) Record the repetitive inspection time intervals established pursuant to para graphs (c), (d), and (e) in the aircraft main tenance records. This amendment becomes effective May 3,1978. (Secs. 313 (a), 601, 603, Federal Aviation Act o f 1958, as amended (49 U.S.C. 1354(a), 1421, RULES A N D REGULATIONS 1423); sec, 6(c), Department of Transporta tion Act (49 U.S.C. 1655(c)); 14 CFR 11.89) N o te .—The Federal Aviation Administra tion has determined that this document does not contain a major proposal requiring preparation of an Economic Impact State ment under Executive Order 11821, as amended by Executive Order 11949, and OMB Circular A-107. Issued in Washington, D.C., on March 27, 1978. J. A. F errarese, Acting Director, Flight Standards Service. [FR Doc. 78-8597 Filed 3-31-78; 8:45 ami [4910-13] [Docket No. 78-SO -l] PART 71— DESIGNATION OF FEDERAL AIRW AYS, AR EA LOW ROUTES, CONTROLLED AIRSPACE, A N D RE PORTING POINTS Designation of Bunnell, Fla., Transition Area AGENCY: Federal Aviation Adminis tration (FAA), DOT. ACTION: Final rule. SUMMARY: This rule designates a 700-foot transition area in the vicinity of Bunnell, Fla. It will lower the base of controlled airspace from 1,200 to 700 feet above ground level. This action provides necessary controlled airspace for accommodation of Instru ment Flight Rules (IFR) operations at the Flagler County Airport. EFFECTIVE DATE: 0901 G.m.t., May 18, 1978. ADDRESS: Federal Aviation Adminis tration, Chief, Air Traffic Division, P.O. Box 20636, Atlanta, Ga. 30320. FOR FURTHER INFORMATION CONTACT: Donald Ross, Airspace and Proce dures Branch, Federal Aviation Ad ministration, P.O. Box 20636, Atlan ta, Ga. 30320; telephone 404-763- 7646. SUPPLEMENTARY INFORMATION: A notice of proposed rulemaking was published in the F ederal R egister on February 9, 1978 (43 FR 5524) which proposed the designation of the Bun nell, Fla., 700-foot transition area. The transition area is required to provide controlled airspace for aircraft execut ing a new approach procedure to the Flagler County Airport. No objections were received from this notice. 13869 D raftin g In fo r m a tio n The principal authors of this docu ment are Donald Ross, Airspace and Procedures Branch, Air Traffic Divi sion, and Richard L. Faber, Office of Regional Counsel. A d o ptio n of A m endment Accordingly, subpart G of part 71, § 71.181, of the Federal Aviation Regu lations (14 CFR Part 71) is amended, effective 0901 G.m.t., May 18, 1978, by adding the following: B u nnell, F la . That airspace extending upward from 700 feet above the surface within a 6.5 mile radius o f the Flagler County Airport (Lat. 29°27'35" N., Long. 81°12'30” W.) excluding that portion that coincides with the Dayto na Beach, Fla., transition area. (Sec. 307(a), Federal Aviation Act o f 1958, as amended (49 U.S.C. 1348(a)), sec. 6(c), De partment o f Transportation Act (49 U.S.C. 1655(c)).) N ote.—The Federal Aviation Administra tion has determined that this document does not contain a major proposal requiring preparation o f an Economic Impact State ment under Executive Order 11821, as amended by Executive Order 11949, and OMB Circular A-107. Issued in East Point, Ga., on March 23,1978. P h il l ip M . S w a t e k , Director, Southern Region. [FR Doc. 78-8596 Filed 3-31-78; 8:45 am] [1505-01] [Airspace Docket No. 77-CE-27] PART 71— DESIGNATION OF FEDERAL AIRW AYS, AR EA LOW ROUTES, CONTROLLED AIRSPACE, A N D RE PORTING POINTS Alteration of Transition Area— Columbia, Mo. Correction In FR Doc. 78-5992, appearing at page 9594 in the issue for Thursday, March 9, 1978; on page 9595, first column, fourth line of the description of the transition area, the latitude reading “ 39°17T5"” should read “ 39°00T5"” . FEDERAL REGISTER, VOL. 43, NO. 64— M OND AY, APRIL 3, 1978