# AD 92-11-09: Transponders - Type: Airworthiness directive - Status: Current - Products: Boeing 737-300 Series, 747-100 Series, 747-100B Series, 747-100B SUD Series, 747-200B Series, 747-200C Series, 747-200F Series, 747-300 Series, 747-400 Series, 747-400D Series, 747SP Series, 747SR Series and 11 more - Effective: May 28, 1992 - Superseded by: Nothing supersedes this AD - Product type: Appliance - Amendment: 39-8259 - Docket: 92-CE-30-AD - Registered aircraft: 310 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/260327DF9D21E63D86256A41006CBB5F.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/92-11-09 ## The airworthiness directive 92-11-09 ROCKWELL INTERNATIONAL/COLLINS AIR TRANSPORT SYSTEMS: Amendment 39-8259. Docket No. 92-CE-30-AD. Applicability: TPR-720 Air Traffic Control Radar Beacon System/Mode S Transponders, part numbers (P/N) 622-7878-020, and P/N 622-7878-120, installed on, but not limited to, the following aircraft (all serial numbers), certificated in any category: Boeing 737-300, 747, and 767 Series Airplanes McDonnell Douglas DC-10 Series Airplanes Fokker F.28 Mark 0100 Series Airplanes Compliance: Required as indicated, unless already accomplished. To prevent the loss of the ability to track aircraft positions by radar in high density air traffic areas that could result from transponder malfunction, accomplish the following: (a) Within the next 6 calendar months after the effective date of this AD, accomplish either (1) or (2) below: (1) Modify the transponder software in accordance with the instructions in Collins Service Bulletin (SB) 8, TPR-720-34-08, dated September 19, 1990. This modification converts transponder P/N 622-7878-020 and 622-7878-120 to P/N 622-7878-200 status. NOTE 1: Although not required by this AD, accomplishment of Collins SB 14, TPR-720-34-14, dated February 26, 1991, Revision 1, dated June 28, 1991; or Collins SB 15, TPR-720-34-15, dated February 26, 1991, Revision 1, dated June 28, 1991, is recommended after accomplishment of Collins SB 8, TPR-720-34-08. Collins SB 14, TPR-720-34-14, and SB15, TPR-720-34-15, convert transponder P/N 622-7878-200 to transponder P/N 622-7878-201 status or transponder P/N 622-7878-300 status, respectively. (2) Modify the transponder hardware in accordance with the instructions in Collins SB C, TPR-720-34-C, dated April 28, 1992. (b) An alternative method of compliance or adjustment of the compliance time that provides an equivalent level of safety may be approved by the Manager, Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Mid-Continent Airport, Wichita, Kansas 67209. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, Wichita Aircraft Certification Office. NOTE 2: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Wichita Aircraft Certification Office. (c) The modification required by this AD shall be done in accordance with Collins Service Bulletin 8, TPR-720-34-08, dated September 19, 1990; or Collins Service Bulletin C, TPR-720-34-C, dated April 28, 1992. 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 Rockwell International/Collins Air Transport Division, 400 Collins Road, NE, Cedar Rapids, Iowa 52498. Copies may be inspected at the FAA, Central Region, Office of the Assistant Chief Counsel, Room 1558, 601 E. 12th Street, Kansas City, Missouri, or at the Office of the Federal Register, 1100 L Street, NW; Room 8401, Washington, DC. (d) This amendment becomes effective on May 28, 1992. ## Affected data sheets (5) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A20WE](https://openairdocs.org/tcds/A20WE): The Boeing Company; names 11 of 14 models: 747-100B Series, 747SP Series, 747-400D Series, 747-200B Series, 747-200F Series, 747-300 Series, 747-200C Series, 747-100B SUD Series… - [TCDS A22WE](https://openairdocs.org/tcds/A22WE): The Boeing Company; names 7 of 11 models: DC-10-40, DC-10-10F, DC-10-30, DC-10-30F (KC-10A KDC-10), DC-10-10, DC-10-40F, DC-10-15 - [TCDS A1NM](https://openairdocs.org/tcds/A1NM): The Boeing Company; names 2 of 5 models: 767-300 Series, 767-200 Series - [TCDS A16WE](https://openairdocs.org/tcds/A16WE): The Boeing Company; names 1 of 17 models: 737-300 Series - [TCDS A20EU](https://openairdocs.org/tcds/A20EU): Fokker Services B.V.; names 1 of 6 models: F28 Mark 0100 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 310 (310 by airframe model, 0 by engine model) - Makers: Boeing 284, Mcdonnell Douglas 13, Douglas 8, Mcdonnell-Douglas 5 Models with the most aircraft: - [Boeing 767-332](https://openairdocs.org/model/boeing-767-332): 46 aircraft (airframe model) - [Boeing 767-322](https://openairdocs.org/model/boeing-767-322): 36 aircraft (airframe model) - [Boeing 767-323](https://openairdocs.org/model/boeing-767-323): 27 aircraft (airframe model) - [Boeing 767-338](https://openairdocs.org/model/boeing-767-338): 13 aircraft (airframe model) - [Boeing 767-316](https://openairdocs.org/model/boeing-767-316): 12 aircraft (airframe model) - [Mcdonnell Douglas DC-10-30F](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30f): 12 aircraft (airframe model) - [Boeing 767-346](https://openairdocs.org/model/boeing-767-346): 11 aircraft (airframe model) - [Boeing 747-446](https://openairdocs.org/model/boeing-747-446): 10 aircraft (airframe model) - [Boeing 767-281](https://openairdocs.org/model/boeing-767-281): 9 aircraft (airframe model) - [Boeing 747-422](https://openairdocs.org/model/boeing-747-422): 8 aircraft (airframe model) - [Boeing 767-381](https://openairdocs.org/model/boeing-767-381): 8 aircraft (airframe model) - [Boeing 767-232](https://openairdocs.org/model/boeing-767-232): 6 aircraft (airframe model) - [Boeing 767-319](https://openairdocs.org/model/boeing-767-319): 6 aircraft (airframe model) - [Douglas DC-10-40](https://openairdocs.org/model/douglas-dc-10-40): 6 aircraft (airframe model) - [Boeing 747-412](https://openairdocs.org/model/boeing-747-412): 5 aircraft (airframe model) - [Boeing 767-306](https://openairdocs.org/model/boeing-767-306): 5 aircraft (airframe model) - [Boeing 767-224](https://openairdocs.org/model/boeing-767-224): 5 aircraft (airframe model) - [Boeing 767-300](https://openairdocs.org/model/boeing-767-300): 5 aircraft (airframe model) - [Mcdonnell-Douglas DC-10-30](https://openairdocs.org/model/mcdonnell-douglas-dc-10-30): 5 aircraft (airframe model) - [Boeing 737-300](https://openairdocs.org/model/boeing-737-300): 4 aircraft (airframe model) All 62 models: https://openairdocs.org/ad/92-11-09/models.md Every aircraft: https://openairdocs.org/ad/92-11-09/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.