Airworthiness directives › 2022-25-20
AD 2022-25-20 Airworthiness Directives; General Electric Company Turbofan Engines
Applicability*9
This AD applies to General Electric Company GEnx-1B64, GEnx-1B64/P1, GEnx-1B64/P2, GEnx-1B67, GEnx-1B67/P1, GEnx-1B67/P2, GEnx-1B70, GEnx-1B70/75/P1, GEnx-1B70/75/P2, GEnx-1B70/P1, GEnx-1B70/P2, GEnx-1B70C/P1, GEnx-1B70C/P2, GEnx-1B74/75/P1, GEnx-1B74/75/P2, GEnx-1B76/P2, GEnx-1B76A/P2, GEnx-2B67, GEnx-2B67B, and GEnx-2B67/P model turbofan engines with an installed high-pressure turbine (HPT) stage 2 disk, forward seal, or stages 6-10 compressor rotor spool with a part number (P/N) and serial number (S/N) identified in Table 1 to paragraph (c) of this AD. Table 1 to Paragraph ( c )—Affected HPT Stage 2 Disks, Forward Seals, and Stages 6-10 Compressor Rotor Spools Part name P/N S/N HPT stage 2 disk 2300M84P02 TMT4AF08 TMT4AF10 TMT4AF11 TMT4AF12 Forward seal 2417M60P02 or 2759M04P01 VOLF1931 VOLF1933 VOLF1942 VOLF1977 VOLF1993 VOLF2014 Stages 6-10 compressor rotor spool 2357M30G02 or 2340M36G01 GWN0R86N Stages 6-10 compressor rotor spool 2439M35G01 or 2610M90G01 GWN0RCKT GWN0R62G GWN0R86J GWN0R5EK GWN0R6EH GWN0R7K1 GWN0R89A Stages 6-10 compressor rotor spool 2439M35G02 GWN0RA89 GWN0R6K9 GWN0R7G9 GWN0R7K4 GWN0R752 GWN0R98P
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Before exceeding 600 flight cycles after the effective date of this AD, remove the affected HPT stage 2 disk, forward seal, and stages 6-10 compressor rotor spool from service and replace with a part eligible for installation. (2) For affected engines not in service, before further flight, remove the affected HPT stage 2 disk, forward seal, and stages 6-10 compressor rotor spool and replace with a part eligible for installation.
Unsafe condition
This AD was prompted by a manufacturer investigation that revealed that certain HPT stage 2 disks, forward seals, and stages 6-10 compressor rotor spools were manufactured from powder metal material suspected to contain iron inclusion. The FAA is issuing this AD to prevent fracture and potential uncontained failure of certain HPT stage 2 disks, forward seals, and stages 6-10 compressor rotor spools. The unsafe condition, if not addressed, could result in uncontained debris release, damage to the engine, and damage to the aircraft.
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