AD 86-19-03

86-19-03 HTL ADVANCED TECHNOLOGY: Amendment 39-5397. Applies to HTL Advanced Technology fire extinguisher discharge outlets as listed in the service bulletins and installed on Boeing Model 707, 727, 737, 747, 757 and 767 series airplanes and on Airbus Industrie Model A300 and A310 series airplanes.

To preclude the potential for separation of the fire extinguisher discharge outlet and misdirection of the fire extinguishing agent, accomplish the following within twelve (12) months after the effective date of the AD, unless already accomplished:

A. Complete the physical and top view x-ray inspections of the fire extinguisher discharge outlets specified in HTL Advanced Technology Service Bulletins listed below, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region:

HTL SERVICE BULLETINS MFRS. S/B 35203000-26-A-3 Rev. C 6-15-85 747 ENG/APU 747-26A2108 35203000-26-A-3 Rev. C 6-15-85 767ENG/APU 767-26A0019 35203010-26-A-1 Rev. A 6-15-85 707 ENG 707-A3441 35203016-26-A-2 Rev. B 6-15-85 737 ENG 737-26A1029 35203018-26-A-2 Rev. B 6-15-85 727 ENG 727-26A0034 35203021-26-A-2 Rev. B 6-15-85 737 APU 737-26A1029 35203022-26-A-2 Rev. B 6-15-85 727 APU 727-26A0034 35203037-26-A-3 Rev. C 6-15-85 767 ENG/APU 767-26A0019 35203038-26-A-1 Rev. A 6-15-85 767 Cargo 767-26A0021 35203039-26-A-1 Rev. A 6-15-85 767 ENG/APU 767-26A0019 35203040-26-A-1 Rev. A 6-15-85 767 ENG/APU 767-26A0019 35289950-26-A-1 Rev. A 6-15-85 747 ENG/APU 747-26A2110 35289950-26-A-1 Rev. A 6-15-85 757 Cargo 757-26A0010 35289950-26-A-1 Rev. A 6-15-85 767 Cargo 767-26A0021 35290250-26-A-2 Rev. B 6-15-85 747 APU 747-26A2108

B. If a discharge outlet does not meet the criterion for acceptability specified in the above bulletins, replace with a serviceable unit before further flight.

C. For discharge outlets that meet the criterion for acceptance specified in the above service bulletins, accomplish the reidentification in accordance with the accomplishment instructions therein.

D. Remove and replace the fire extinguisher discharge outlets specified in the HTL Advanced Technology Service Bulletins listed below, or later revisions approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

HTL SERVICE BULLETINS

MFRS. S/B 33600005-1-26-1 Rev. 10-15-84 A300/APU A300-26-048 33600005-1-26-1 - 10-15-84 A310/APU A310-26-2004 33600005-2-26-2 - 10-15-84 A310/APU A310-26-2004 35203030-26-A-1 - 8-31-84 A310 ENG A310-26-2003

E. 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.

F. Alternate means of compliance which provide an acceptable level of safety may be used when approved by the Manager, Los Angeles Aircraft Certification Office, FAA, Northwest Mountain Region.

All persons affected by this directive who have not already received the appropriate service documents from the manufacturer may obtain copies upon request to HTL Advanced Technology, 1800 Highland Avenue, Duarte, California 91010, Attention: John Hansen, Director of Quality Assurance. These documents may be examined at the FAA, Northwest Mountain Region, 17900 Pacific Highway South, Seattle, Washington, or the Los Angeles Aircraft Certification Office, 4344 Donald Douglas Drive, Long Beach, California.

This amendment becomes effective September 26, 1986.