AD 79-08-06

Airworthiness directive · Carburetors · Lycoming Engines O-540-L3C5D and Carburetors

Effective
April 25, 1979
Models
O-540-L3C5D, Carburetors
Data sheet
TCDSE-295
Registered aircraft
5,263 matched by model
Product
Appliance
Amendment
39-3450

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 May 30, 2024.

On this page

The airworthiness directive

79-08-06 MARVEL-SCHEBLER/TILLOTSON: Amendment 39-3450. Applies to HAJ-6 Part Number 10-5243 carburetors with the following serial numbers installed on aircraft certificated in all categories:

DF-1-100 118 133 151 174 191 216 250 276 300 101 119 134 154 175 193 218 251 277 301 102 120 135 176 157 194 219 255 278 302 103 121 136 159 177 195 220 256 279 303 104 122 137 161 179 200 222 258 282 304 106 123 138 162 180 202 223 260 287 307 107 124 139 163 182 204 225 261 290 312 110 125 143 164 183 205 227 263 292 313 111 127 144 167 184 208 229 264 293 318 112 128 145 168 185 209 231 266 295

113 129 147 170 186 210 237 269 296

114 130 148 171 187 211 238 271 297

116 131 149 172 189 212 240 274 298

117 132 150 173 190 241 245 275 299

These carburetors are installed on, but are not limited to Cessna TR182 aircraft with Lycoming O-540-L3C5D engines.

Compliance required within 30 days after the effective date of this AD, unless previously accomplished.

To preclude failure of the engine during idle conditions, remove the carburetor from service and replace with an airworthy carburetor of the same part number with serial number DF-1-500 or subsequent. The aircraft may be flown in accordance with FAR 21.197 to a base where the modification can be performed.

This amendment becomes effective April 25, 1979.

Affected TCDS · 1

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

Registered aircraft · 5,263

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
  • Piper3,519 aircraft
  • Cessna1,113 aircraft
  • Maule232 aircraft
  • Robinson Helicopter138 aircraft
  • Britten-Norman32 aircraft
  • Other makers120229 aircraft
By year built
19402026
Registered aircraft by year built: 4,631 aircraft
19401
19471
19482
19512
19541
19553
19571
1958150
1959271
1960218
1961189
1962137
1963215
1964218
1965190
1966312
1967158
1968149
1969112
197032
197145
197275
197399
197454
197562
197684
1977114
1978433
1979503
1980205
1981128
198253
198347
198429
198527
19869
19875
198814
19898
199012
19915
19923
19934
199412
19957
199614
199716
199818
199942
200028
200130
200218
200319
20045
200513
20066
20071
20081
20093
20101
20131
20171
20193
20204
20222
20232
20241
20251
20262

632 with no year recorded

By model

Aircraft

See all 5,263 aircraft