Airworthiness directives › 2012-09-10
AD 2012-09-10 Airworthiness Directives; Pratt & Whitney Canada Turboprop Engines
Applicability*9
This AD applies to Pratt & Whitney Canada PT6A-38, -41, -42, -42A, -61, -64, -66, -66B, -110, -112, -114, -114A, -121, -135, and -135A series turboprop engines: (1) That have had maintenance done to the power section module involving first stage sun gear or planet gear replacement since December 22, 2008; and (2) That have any of the following Timken Alcor Aerospace Technologies, Inc. (TAATI) part manufacturer approval (PMA) replacement first stage sun gears or planet gear sets installed: (i) First stage sun gears P/N E3028456, all serial numbers (S/Ns). (ii) First stage sun gears P/N E3037304, all S/Ns. (iii) Planet gear sets P/N E3101455-02, all S/Ns. (iv) Planet gear sets P/N E3101525-02, all S/Ns.
Compliance
After the effective date of this AD, do not install on any airplane, any engine or power section module with a TAATI PMA replacement first stage sun gear or a planet gear set, as listed in paragraph (c) of this AD.
Required actions
The Manager, Los Angeles Aircraft Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request.
Unsafe condition
(1) Comply with this AD within the compliance times specified, unless already done. (2) Within 40 operating hours after the effective date of this AD, remove from service the following PMA replacement TAATI first stage sun gear and the planet gears from the propeller reduction gearbox assembly: (i) First stage sun gears P/N E3028456, all S/Ns, and the associated planet gears. (ii) First stage sun gears P/N E3037304, all S/Ns, and the associated planet gears. (iii) Planet gear sets P/N E3101455-02, all S/Ns, and the associated sun gears. (iv) Planet gear sets P/N E3101525-02, all S/Ns, and the associated sun gears.
Affected ADs
None.
Read the original on the Federal Register →
You just looked this one up by hand
TrackAD holds all 12,278 of them and matches them against the aircraft you actually look after — airframe, engine, propeller and appliances in one pass — then works out what falls due and when.
- Bring your existing list in from a spreadsheet Paste the rows straight out of Excel. Headers like C/W Date and N/A are read for you.
- A copy that works when this does not One file. No internet, no login, no this software running. For the morning something has to be produced and the computer is not cooperating.
- $5 a month, or $50 a year Up to 50 aircraft on either.
Look round a real shop first Start free
The demonstration shop is eleven real aircraft with a year of work behind them. No account needed.
The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1