AD 77-08-06

Airworthiness directive · Engine Oil · Mooney M20E, M20F and M20J

Effective
July 8, 1977
Models
M20E, M20F, M20J
Data sheet
TCDS2A3
Registered aircraft
2,975 matched by model
Product
Aircraft · Small airplane
Amendment
39-2877

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

77-08-06 MOONEY: Amendment 39-2877 as amended by Amendment 39-2903 is further amended by Amendment 39-2962. Applies to Models M20E (Serial Numbers 101 through 466, 470 through 1217, 1219, 1221, 1223 through 1308, 670001 through 670062, 690001 through 690073, 700001 through 700039, 700041 through 700043, 700045 through 700052, 700055, 700056, 700060, 700061, 21-0001 through 21-1180); M20F (Serial Numbers 670001 through 670363, 670365 through 670385, 670387 through 670482, 670484 through 670539, 680001 through 680206, 690001 through 690090, 690092, 700001 through 700061, 700063, 700066 through 700070, 700072, 22-0001 through 22-1437); M20J (Serial Numbers 24- 0001 through 24-0237) airplanes. Compliance required prior to further flight after the effective date of this AD except that the airplane may be flown in accordance with FAR 21.197 to a base where the removal can be performed. To prevent loss of engine oil accomplish the following: (a) Before the next flight of the affected airplanes, remove the engine cowl and visually check the engine oil cooler to determine whether it is a Stewart-Warner Model 8432H (S/N 001 and Up) 8432F (S/N 1610 through 1717). (1) If the oil cooler is not of the model and serial numbers listed above, make an entry in the aircraft maintenance records indicating that this Airworthiness Directive (AD) has been accomplished and the airplane may be returned to service. NOTE: If your airplane was manufactured prior to March 1, 1975, and your oil cooler has not been replaced since that date, then your airplane does not have a suspect oil cooler. (2) If the oil cooler is of a model and serial number listed above, before further flight after the effective date of this AD, the oil cooler must be removed and replaced with a serviceable Stewart- Warner Model 8432F-1 oil cooler, except that the airplane may be flown in accordance with FAR 21.197 to a base where the removal and replacement can be performed. A pilot may perform the visual checks outlined in items (a)(1) above pursuant to the provisions of FAR 43.3(h). NOTE: For the requirements regarding the listing of compliance and method of compliance with paragraphs (a)(1) and (a)(2) of this AD in the aircraft permanent maintenance record, see FAR 91.1973. (b) Deleted. (c) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, Flight Standards Division, Southwest Region, Federal Aviation Administration. NOTE: Mooney Service Bulletin M20-203, dated July 7, 1977, pertains to this same subject. Amendment 39-2877 became effective on April 21, 1977, and was effective upon receipt for all recipients of the airmail letter dated April 15, 1977. Amendment 39-2903 became effective May 19, 1977, and was effective upon receipt for all recipients of the airmail letter dated May 16, 1977. This amendment 39-2962 becomes effective July 25, 1977, and was effective upon receipt for all recipients of the airmail letter dated July 8, 1977.

Affected TCDS · 1

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

Registered aircraft · 2,975

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
  • Mooney2,958 aircraft
  • Aerostar Acft Corp Of Texas17 aircraft
By year built
19631998
Registered aircraft by year built: 2,537 aircraft
196352
1964133
1965201
1966307
1967242
196865
196985
197032
197120
19731
197454
197581
1976107
1977208
1978211
1979105
198064
1981105
198261
198354
198468
198526
198615
198715
198815
198918
199046
199118
199226
199322
199427
19959
199619
199712
199813

438 with no year recorded

By model

Aircraft

See all 2,975 aircraft