- Models
- 172I, 172K
- Data sheet
- TCDS3A12
- Registered aircraft
- 1,379 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-1008
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.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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|---|---|---|---|
| FAA DRS HTML | 20 KB | 5f9459bf…9e63249 | FAA DRS (API key needed) |
On this page
The airworthiness directive
70-10-06 CESSNA: Amendment 39-990 as amended by Amendment 39-1008. Applies to Models 172I (Serial Numbers 17256513 through 17257161) and 172K (Serial Numbers 17256493, and 17257162 through 17259043) Airplanes.
Compliance: Required as indicated, unless already accomplished.
To prevent the loss of engine oil caused by failure of the metal oil pressure instrument line, accomplish the following:
Within 50 hours' time in service from June 1, 1970, but by no later than June 30, 1970, replace the metal oil pressure instrument line between the engine and the firewall with a flexible hose assembly in accordance with the instructions contained in Cessna Service Letter No. SE70-10, dated May 5, 1970, or Cessna Service Letter No. SE70-10, Supplement No. 1, dated June 9, 1970, or any other method approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.
Amendment 39-990 effective May 19, 1970.
This amendment becomes effective upon publication in the FEDERAL REGISTER.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1,379
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1967 | 1 |
|---|---|
| 1968 | 606 |
| 1969 | 473 |
| 1970 | 118 |
| 1981 | 1 |
180 with no year recorded