69-19-01 PILATUS: Amdt. 39-822. Applies to Model PC-6 Airplanes, Serial Nos. 1 through 701, 2001 through 2018, 2023, 2025 through 2029, 2040 and 2041.
Compliance: Required within the next 300 hours' time in service after the effective date of this AD, unless already accomplished.
To prevent rotation of pivot bolt P/N 6203.25 located at the hatch door operating bellcrank, replace with a new pivot bolt P/N 112.40.06.120 in accordance with Pilatus Service Bulletin No. 88, dated December 1968, or later Swiss Federal Air Office-approved issue, or an FAA-approved equivalent.
This amendment becomes effective September 20, 1969.