Airworthiness Directives; ACS PRODUCTS COMPANY AND GERDES PRODUCTS COMPANY Ignition Switches
CESSNA 177 · Airworthiness Directives
Overview
This document is an Airworthiness Directive (AD) issued by the Federal Aviation Administration (FAA) concerning ignition switches manufactured by ACS Products Company and Gerdes Products Company. It specifically addresses the safety and operational integrity of these switches as installed in various aircraft, including the Cessna 177. The directive mandates inspections and potential replacements of ignition switches to prevent failures that could compromise flight safety. Compliance with the AD is required within specified timeframes to ensure the continued airworthiness of affected aircraft. The document outlines specific serial numbers for affected Cessna models and provides detailed instructions for inspections and modifications.
- Cessna 177 serial numbers affected: 17701890 through 17702752.
- Inspection of ignition switches required within 100 flight hours or at the next annual inspection.
- Lubrication and inspection of ignition switches must occur at intervals not exceeding 2,000 flight hours.
- If wear or corrosion is found, the ignition switch must be replaced before further flight.
- Diodes must be installed on starter solenoids if not already present.
Document
Source
Originally published by www.cardinalflyers.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Airworthiness Directives
- Year
- 1993
- Pages
- 4
- File size
- 28 KB
- Publisher
- www.cardinalflyers.com
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In this document
Applicability
The AD applies to various Cessna models including the Cessna 177, with specific serial numbers ranging from 17701890 to 17702752. It also includes other models such as the Cessna 150, 152, and 172, among others.
Compliance Requirements
Operators must perform an inspection of the ignition switch within 100 flight hours after the effective date of the AD or at the next annual inspection, whichever comes first. If wear or corrosion is detected, the switch must be replaced before further flight.
Inspection and Lubrication
The directive requires that the ignition switch be lubricated and inspected at intervals not to exceed 2,000 flight hours. Specific service bulletins from ACS and Cessna provide guidance on these procedures.
Installation of Diodes
Operators must inspect the ignition switch installation to determine if a diode or surge suppressor is installed on the starter solenoid. If not, one must be installed prior to further flight.
Alternative Methods of Compliance
Operators may propose alternative methods of compliance with the AD, which must be approved by the FAA's Los Angeles Aircraft Certification Office.
Safety notes
- Failure to comply with the AD may result in ignition switch failure, compromising flight safety.
Full document text
Header Information DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 Docket No. 92-NM-165-AD; Amendment 39-8511; AD 93-05-06 Airworthiness Directives; ACS PRODUCTS COMPANY AND GERDES PRODUCTS COMPANY Ignition Switches PDF Copy (If Available): Preamble Information Regulatory Information 93-05-06 ACS PRODUCTS COMPANY AND GERDES PRODUCTS COMPANY: Amendment 39-8511. Docket 92-NM-165-AD. Applicability: ACS and Gerdes ignition switches; as installed in, but not limited to, Piper Model PA-38-112 series airplanes, Schweizer Model G- 164 series (including Model G-164A, G-164B, and G-164C) airplanes, Schweizer Model 2-37 and 2-37A series airplanes, and the following Cessna airplanes; certificated in any category: Airworthiness Directives Cessna Model Serial Numbers 150 15074428 through 15079405 A150 A1500389 through A1500734 F150 F15001024 through F15001428 FRA150 FRA1500212through FRA1500336 152 15279406 through 15286033 A152 A1520735 through A1521049 F152 F15201429 through F15201980 FA152 FA1520337 through FA1520425 172 17261486 through 17276673 R172 R1722000 through R1723454 Page 1 of 4 10.9.2002 http://www2.airweb.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/WebCurrent... Compliance: Required as indicated, unless accomplished previously. To prevent failure of ignition switches, accomplish the following: (a) Within 100 flight hours after the effective date of this AD, or at the next annual inspection, whichever occurs first, perform an inspection of the ignition switch to detect wear and corrosion, and lubricate the switch, in accordance with ACS Service Bulletin SB92-01, dated August 15, 1992; or Cessna Service Bulletin SEB91-5, Revision 1, June 14, 1991. If wear or corrosion is detected, prior to further flight, replace the switch in accordance with the service bulletin. Repeat this inspection and lubricate the ignition switch in accordance with the service bulletin, thereafter, at intervals not to exceed 2,000 flight hours. NOTE: ACS ignition switches that do not have a "start" position (models A-510-1 and A-510-5) or were manufactured on or after February 20, 1989, and have not accumulated 2,000 flight hours, need not be lubricated. The manufacture date is stamped on the switch body. These switches are identifiable by red paint in the screw heads on the back of the switch. However, manufacturer lubricated switches that have a "start" position, but do not have a starter solenoid diode, must be inspected and modified. 172RG 172RG0001 through 172RG1191 F172 F17201045 through F17202254 FR172 FR17200441 through FR17200675 177 17701890 through 17702752 177RG 177RG0342 through 177RG1366 F177RG F177RG0093through F177RG0177 180 18052317 through 18053203 182 18261786 through 18268615 R182 R18200001 through R18202041 A182 A182- 0137 through A182-0148 F182 F18200001 through F18200169 FR182 FR18200001 through FR18200070 185 18502154 through 18504448 U206 U20601980 through U20607020 207 20700222 through 20700788 210 21059893 through 21065009 P210 P21000001 through P21000874 Page 2 of 4 10.9.2002 http://www2.airweb.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/WebCurrent... (b) Within 100 flight hours after the effective date of this AD, or at the next annual inspection, whichever occurs first, inspect the ignition switch installation to determine if a diode or other surge suppresser is installed on the starter solenoid. If one is not installed, prior to further flight, install a starter solenoid diode in accordance with ACS Service Bulletin SB92-01, dated August 15, 1992; or Cessna Service Bulletin SEB91-5, Revision 1, dated June 14, 1991. NOTE: For operators using the Cessna service bulletin to install the diode in the starter solenoid: The procedures for installation are contained in Attachment to Service Bulletin SEB91-5R1, Revision 1, dated June 14, 1991. (c) 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, Los Angeles Aircraft Certification Office (ACO), FAA, Transport Airplane Directorate. Operators shall submit their requests through an appropriate FAA Principal Maintenance Inspector, who may add comments and then send it to the Manager, Los Angeles ACO. NOTE: Information concerning the existence of approved alternative methods of compliance with this AD, if any, may be obtained from the Los Angeles ACO. (d) Special flight permits may be issued in accordance with FAR 21.197 and 21.199 to operate the airplane to a location where the requirements of this AD can be accomplished. (e) The inspection, lubrication, replacement, and modification shall be done in accordance with ACS Service Bulletin SB92-01, dated August 15, 1992; or Cessna Service Bulletin SEB91-5, Revision 1, dated June 14, 1991, which includes Attachment to Service Bulletin SEB91-5R1, Revision 1, dated June 14, 1991. 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 ACS Products Company, P.O. Box 152, 1585 Copper Drive, Lake Havasu City, Arizona 86403-0008; or Cessna Aircraft Company, Customer Services, P.O. Box 7704, Wichita, Kansas 67277. Copies may be inspected at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or at the Los Angeles Aircraft Certification Office, 3229 East Spring Street, Long Beach, California; or at the Office of the Federal Register, 800 North Capitol Page 3 of 4 10.9.2002 http://www2.airweb.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/WebCurrent... Street, NW., suite 700, Washington, DC. (f) This amendment becomes effective on April 29, 1993. Footer Information Federal Register Information Comments Page 4 of 4 10.9.2002 http://www2.airweb.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf/WebCurrent...
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