AD 93-05-22

Historical

Airworthiness directive · Fuel Injector Fuel Lines · Lycoming Engines TIO-540-S1AD

Effective
May 11, 1993
Supersedes
AD92-12-10
Superseded by
AD2002-26-01
Model
TIO-540-S1AD
Data sheet
TCDSE14EA
Registered aircraft
5,090 matched by model
Product
Engine
Amendment
39-8525
Docket
93-ANE-13

Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed August 7, 2025.

On this page

The airworthiness directive

93-05-22 TEXTRON LYCOMING: Amendment 39-8525. Docket 93-ANE-13. Applicability: Textron Lycoming Model TIO-540-S1AD engines installed on but not limited to Piper PA-32 Series Aircraft (Turbo Saratoga, Turbo Saratoga SP and Turbo Lance II aircraft). Compliance: Required as indicated, unless accomplished previously. To prevent failure of the fuel injector fuel lines that can result in an engine fire, accomplish the following: (a) Within 10 hours time in service after the effective date of this AD inspect the fuel injector fuel lines between the fuel manifold and the fuel injector nozzles as follows: (1) Visually inspect each fuel injector fuel line for missing support clamps or support clamps with a loose, worn or missing support sleeve or cushion. Each fuel injector fuel line must be supported by at least one clamp. (2) Visually inspect each fuel injector fuel line for evidence of physical damage, including dents and chaffing, and for stains caused by fuel leakage. (b) Prior to further flight, replace any fuel injector fuel line that does not have a supporting clamp, has a clamp with a loose, worn, or missing support sleeve or cushion, or if the line itself is damaged or has evidence of fuel leakage. (c) Thereafter, reinspect the fuel lines in accordance with paragraphs (a)(1) and (2) of this AD and replace as necessary any fuel injector fuel lines in accordance with paragraph (b) of this AD at each annual inspection, at each 100-hour inspection, at each engine overhaul, and after any maintenance has been performed on the engine where the fuel injector fuel lines have been disconnected, loosened, or moved. (d) 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, New York Aircraft Certification Office. The request should be forwarded through an appropriate FAA Maintenance Inspector, who may add comments and then send it to the Manager, New York Aircraft Certification Office. NOTE: Information concerning the existence of approved alternative methods of compliance with this airworthiness directive, if any, may be obtained from the New York Aircraft Certification Office. (e) 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. (f) This amendment supersedes priority letter AD 92-12-10, issued June 5, 1992. (g) This amendment becomes effective on May 11, 1993.

Affected TCDS · 1

The type certificate data sheets for the models this AD names, matched by model and maker.

Registered aircraft · 5,090

Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.

By aircraft maker
  • Piper3,663 aircraft
  • Cessna631 aircraft
  • Mooney222 aircraft
  • Aero Commander117 aircraft
  • Bellanca111 aircraft
  • Other makers42346 aircraft
By year built
19472024
Registered aircraft by year built: 4,547 aircraft
19471
19491
19541
19552
19561
19581
19592
196011
196114
196228
196327
196479
1965157
1966206
1967165
1968124
1969219
197071
197193
1972105
1973152
1974162
1975178
1976347
1977213
1978256
1979140
1980147
1981129
198264
198346
198443
19856
19866
19874
19881
198944
199037
199127
199212
199330
199428
199524
199636
199761
199866
1999139
2000153
2001119
200299
200386
2004170
2005171
200624
20072
20081
20092
20101
20123
20132
20141
20151
20171
20181
20201
20211
20231
20241

543 with no year recorded

By model

Aircraft

See all 5,090 aircraft

NTSB investigations that cite this AD · 2

Their narratives or probable cause name AD 93-05-22, often to say whether the aircraft complied with it.