- Effective
- September 22, 1975
- Published
- September 22, 1975
- Issued
- September 15, 1975
- Model
- PA-36-285
- Registered aircraft
- 40 matched by model
- Product
- Aircraft · Small airplane
- Amendment
- 39-2373
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 November 21, 2025.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 20 KB | fe04efa2…bcc59d1 | FAA DRS (API key needed) |
On this page
The airworthiness directive
75-20-07 PIPER: Amendment 39-2373. Applies to PA-36-285 serial numbers 36- 7560001 through 36-7560121 inclusive.
Compliance required within the next 10 hours time in service after the effective date of this airworthiness directive.
To determine proper installation of the front bearing plate bolt on the control system torque tube accomplish the following:
a. Remove fuselage belly panel directly beneath the pilot seat.
b. Refer to figure 5-1, sketch A of PA-36 Service Manual and locate front bearing plate to torque tube attachment bolt.
c. Insure bolt (item 14) is tight and exhibits proper thread engagement in barrel nut (visible through aperture in torque tube): a minimum of 1 1/2 threads should be visible.
d. If proper thread engagement is not found, remove forward bolt (item 14) and install proper length bolt (AN4-13A or equivalent).
e. Recheck controls for proper operation.
This amendment becomes effective September 22, 1975.
Registered aircraft · 40
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1973 | 4 |
|---|---|
| 1974 | 1 |
| 1975 | 22 |
| 1976 | 8 |
5 with no year recorded