Airworthiness Directive · Amendment 39-15816 · General Electric Company CF6-80A, CF6-80C2, and CF6-80E1 Series Turbofan Engines
General Electric Company CF6-80A, CF6-80C2, and CF6-80E1 Series Turbofan Engines
This AD applies to General Electric Company CF6-80A, CF6-80C2, and CF6-80E1 series turbofan engines. These engines are installed on, but not limited to, Airbus A300, A310, and A330 series, Boeing 747 and 767 series, and McDonnell Douglas MD-11 series airplanes.
The FAA is superseding an existing airworthiness directive (AD) for General Electric Company (GE) CF6-80A, CF6-80C2, and CF6-80E1 series turbofan engines. That AD required revisions to the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA) to include required inspection of selected critical life-limited parts at each piece-part exposure. This AD requires revisions to the CF6-80A, CF6-80C2, and CF6- 80E1 series engines ALS sections of the manufacturer's manuals and an air carrier's approved continuous airworthiness maintenance program to incorporate additional inspection requirements, and to update certain Engine Manual Inspection Task and Sub Task Number references. This AD results from the need to require enhanced inspection of selected critical life-limited parts of CF6-80A, CF6-80C2, and CF6-80E1 series engines. We are issuing this AD to prevent critical life-limited rotating engine part failure, which could result in an uncontained engine failure and damage to the airplane.
You are responsible for having the actions required by this AD performed within the compliance times specified unless the actions have already been done.
Within the next 180 days after the effective date of this AD, revise the Airworthiness Limitations Section (ALS) of the manufacturer's Instructions for Continued Airworthiness (ICA), and for air carrier operations revise the approved continuous airworthiness maintenance program, by adding the following: “MANDATORY INSPECTIONS”
(1) Perform inspections of the following parts at each piece-part opportunity in accordance with the instructions provided in the applicable manual provisions:
| Part nomenclature | Part number (P/N) | Inspect per engine manual inspection chapter |
|---|---|---|
| For CF6-80A Engines: | ||
| Disk, Fan Rotor, Stage 1 | All | 72-21-03 Paragraph 3. Fluorescent-Penetrant Inspect, and 72-21-03 Paragraph 4. Eddy Current Inspect. |
| Fan Forward Shaft | All | 72-21-05 Paragraph 2. Magnetic Particle Inspect. |
| Fan Mid Shaft | All | 72-24-01 Paragraph 2. Magnetic Particle Inspect. |
| Disk, HPC Rotor, Stage One | All | 72-31-04 Paragraph 3. Fluorescent-Penetrant Inspect. |
| **Disk, HPC Rotor, Stage Two | All | 72-31-05 Paragraph 4. Fluorescent-Penetrant Inspect. |
| Spool, HPC Rotor, Stage 3-9 | All | 72-31-06 Paragraph 3. Fluorescent-Penetrant Inspect. |
| Disk, HPC Rotor, Stage 10 | All | 72-31-07 Paragraph 3. Fluorescent-Penetrant Inspect. |
| Spool, HPC Rotor, Stage 11-14 | All | 72-31-08 Paragraph 3.A. Fluorescent-Penetrant Inspect. |
| Rotating CDP Seal | All | 72-31-10 Paragraph 3. Fluorescent-Penetrant Inspect. |
| Disk Shaft, HPT Rotor, Stage One | All | 72-53-02 Paragraph 3. Fluorescent-Penetrant-Inspect per 70-32-02, and |
| 72-53-02 Paragraph 6.C. Disk Rim Bolt Hole Eddy Current Inspection, and | ||
| 72-53-02 Paragraph 6.D. Disk Bore Eddy Current Inspection. | ||
| *Disk Shaft, HPT Rotor, Stage One | All | 72-53-02 Paragraph 6.E. Disk Dovetail Slot Bottom Eddy Current Inspection. |
| *Disk Shaft, HPT Rotor, Stage One | P/Ns 2047M33G01 thru G10, and P/N 9362M58G11 | 72-53-02 Paragraph 7. Disk Dovetail Slot Bottom Aft Corner Chamfers Eddy Current Inspection. |
| Disk, HPT Rotor, Stage Two | All | 72-53-06 Paragraph 3. Fluorescent-Penetrant Inspection, and |
| 72-53-06 Paragraph 6. Eddy Current Inspection of Rim Bolt Holes for Cracks, and | ||
| 72-53-06 Paragraph 7. Disk Bore Eddy Current Inspection. | ||
| Disk, LPT Rotor, Stage 1-4 | All | 72-57-02 Paragraph 3. Fluorescent-Penetrant Inspection. |
| Shaft, LPT Rotor | All | 72-57-03 Paragraph 3. Fluorescent-Penetrant Inspection, and |
| 72-57-03 Paragraph 6. Eddy Current Inspection. | ||
| For All CF6-80C2 Engines: | ||
| Disk, Fan Rotor, Stage 1 | All | Task 72-21-03-200-000-004 Fluorescent-Penetrant Inspection, and |
| Task 72-21-03-200-000-008 Eddy Current Inspect Fan Rotor Disk Stage 1 Bore, Forward and Aft Hub Faces, and Bore Radii. | ||
| Shaft, Fan Forward | All | Task 72-21-05-200-000-001 Fluorescent Penetrant Inspection, and |
| Task 72-21-05-200-000-005 Vent Hole Eddy Current Inspection. | ||
| Fan Mid Shaft | All | Task 72-24-01-200-000-003 Magnetic Particle Inspection. |
| HPCR Stage 1 Disk | All | Task 72-31-04-200-000-002 Fluorescent Penetrant Inspection. |
| HPCR Stage 2 Disk | All | Task 72-31-05-200-000-002 Fluorescent Penetrant Inspection. |
| HPCR Stage 3-9 Spool | All | Task 72-31-06-200-000-001 Fluorescent Penetrant Inspection. |
| HPCR Stage 10 Disk | All | Task 72-31-07-200-000-001 Fluorescent Penetrant Inspection. |
| HPCR Stage 11-14 Spool/Shaft | All | Task 72-31-08-200-000-002 Fluorescent Penetrant Inspection. |
| No. 4 Bearing Rotating (CDP) Air Seal | All | Task 72-31-10-200-000-001 Fluorescent Penetrant Inspection or |
| Task 72-31-10-200-000-A01 Fluorescent Penetrant Inspection. | ||
| HPCR Stage 10-14 Spool/Shaft | All | Task 72-31-22-200-000-002 Fluorescent Penetrant Inspection. |
| ** Disk/Shaft, HPT Rotor, Stage One | All | Task 72-53-02-200-000-001 (Inspection—Configuration 1), or |
| Task 72-53-02-230-801 (Inspection—Configuration 2), Fluorescent-Penetrant Inspect, and | ||
| Task 72-53-02-200-000-005 (Inspection—Configuration 1), or | ||
| Task 72-53-02-250-802 (Inspection—Configuration 2), Disk Rim Bolt Hole Eddy Current Inspection, and | ||
| Task 72-53-02-200-000-006 (Inspection—Configuration 1), or | ||
| Task 72-53-02-250-803 (Inspection—Configuration 2), Disk Bore Area Eddy Current Inspection, and | ||
| Task 72-53-02-200-000-007 (Inspection—Configuration 1), or | ||
| Task 72-53-02-250-804 (Inspection—Configuration 2), Disk Dovetail Slot Bottom Eddy Current. | ||
| * Disk/Shaft, HPT Rotor, Stage One | P/N 1531M84G12 and P/Ns 2047M 32G01 thru G07 | Task 72-53-02-250-801 (Inspection—Configuration 1), Disk Dovetail Slot Bottom Aft Corner Chamfers Eddy Current Inspection. |
| Disk, HPT Rotor, Stage Two | All | Task 72-53-06-200-000-002 Fluorescent-Penetrant Inspect, and |
| Task 72-53-06-200-000-006 Disk Rim Bolt Hole Eddy Current Inspection, and | ||
| Task 72-53-06-200-000-007 Disk Bore Eddy Current Inspection. | ||
| LPTR Stage 1-5 Disks | All | Task 72-57-02-200-000-001 Fluorescent-Penetrant Inspection. |
| LPTR Shaft | All | Task 72-57-03-200-000-002 Fluorescent-Penetrant Inspect, and |
| Task 72-57-03-200-000-006 Eddy Current Inspection. | ||
| For CF6-80C2 Engines configured with the R88DT Turbine (Models CF6-80C2B2F, 80C2B4F, 80C2B6F, 80C2B7F, 80C2B8F): | ||
| Disk/Shaft, HPT Rotor, Stage One (R88DT, No Rim Bolt Holes) | All | Task 72-53-16-200-000-001 Fluorescent-Penetrant Inspect, and |
| Task 72-53-16-200-000-005 Disk Bore Area Eddy Current Inspection. | ||
| Disk, HPT Rotor, Stage Two (R88DT, No Rim Bolt Holes) | All | Task 72-53-18-200-000-002 Fluorescent-Penetrant Inspect, and |
| Task 72-53-18-200-000-005 Disk Bore Area Eddy Current Inspection. | ||
| Rotating Interstage Seal (R88DT) | All | Task 72-53-17-200-000-001 Fluorescent-Penetrant Inspect, and |
| Task 72-53-17-200-000-005 Seal Bore Area Eddy Current. | ||
| Forward Outer Seal (R88DT) | All | Task 72-53-21-200-000-001 Fluorescent-Penetrant Inspect, and |
| Task 72-53-21-200-000-004 Seal Bore Area Eddy Current. | ||
| For CF6-80E1 Engines: | ||
| Disk, Fan Rotor, Stage One | All | Sub Task 72-21-03-230-051 Fluorescent-Penetrant Inspection, and |
| Sub Task 72-21-03-250-051 or 72-21-03-250-052 Disk Bore Eddy Current Inspection. | ||
| Shaft, Fan | All | Sub Task 72-21-05-230-051 Fluorescent Penetrant Inspection, and |
| Sub Task 72-21-05-250-051 Vent Hole Eddy Current Inspection. | ||
| Compressor Rotor, Stage 1 Disk | All | Sub Task 72-31-04-230-051 Fluorescent Penetrant Inspection. |
| Compressor Rotor, Stage 2 Disk | All | Sub Task 72-31-05-230-051 Fluorescent Penetrant Inspection. |
| Compressor Rotor, Stage 3-9 Spool | All | Sub Task 72-31-06-230-051 Fluorescent Penetrant Inspection. |
| Compressor Rotor, Stage 10 Disk (Pre SB 72-0150) | All | Sub Task 72-31-07-230-051 Fluorescent Penetrant Inspection. |
| Compressor Rotor Spool/Shaft, Stage 11-14 (Pre SB 72-0150) | All | Sub Task 72-31-08-230-051 Fluorescent Penetrant Inspection. |
| Compressor Rotor Spool/Shaft, Stage 10-14 (SB 72-0150) | All | Sub Task 72-31-23-230-052 Fluorescent Penetrant Inspection. |
| Compressor Rotor No. 4 Bearing Rotating Air Seal (CDP Rotating Seal) | All | Sub Task 72-31-10-230-051 Fluorescent Penetrant Inspection. |
| HPT Disk/Shaft, Stage 1 | All | Sub Task 72-53-02-230-051 Fluorescent-Penetrant Inspection, and |
| Sub Task 72-53-02-250-051 Eddy Current Inspection, Rim Bolt Holes, and | ||
| Sub Task 72-53-02-250-054 Eddy Current Inspection, Disk Bore. | ||
| HPT Disk, Stage 2 | All | Sub Task 72-53-06-230-051 Fluorescent-Penetrant Inspection, and |
| Sub Task 72-53-06-250-051 Eddy Current Inspection, Rim Bolt Holes, and | ||
| Sub Task 72-53-06-250-054 Eddy Current Inspection, Disk Bore. | ||
| LPT Rotor Shaft | All | Sub Task 72-55-01-240-051 Magnetic Particle Inspect. |
| LPT Disks, Stages 1-5 | All | Sub Task 72-57-02-230-051 Fluorescent-Penetrant Inspect. |
| LPT Rotor Torque Cone | All | Sub Task 72-57-03-220-051 Fluorescent-Penetrant Inspect. |
| For CF6-80E1 Engines configured with the R88DT Turbine: | ||
| Disk/Shaft, HPT Rotor, Stage 1 (R88DT, No Rim Bolt Holes) | All | Sub Task 72-53-16-230-052 Fluorescent-Penetrant Inspect, and |
| Sub Task 72-53-16-250-051 Disk Bore Area Eddy Current Inspection. | ||
| Disk, HPT Rotor, Stage 2 (R88DT, No Rim Bolt Holes) | All | Sub Task 72-53-18-230-051 Fluorescent-Penetrant Inspect, and |
| Sub Task 72-53-18-250-051 Disk Bore Area Eddy Current Inspection. | ||
| ** HPT Rotor Rotating Interstage Seal (R88DT) | All | Sub Task 72-53-17-230-056 Fluorescent-Penetrant Inspect, and |
| Sub Task 72-53-17-250-051 Seal Bore Area Eddy Current. | ||
| HPT Rotor Forward Outer Seal (R88DT) | All | Sub Task 72-53-21-230-051 Fluorescent-Penetrant Inspect, and |
| Sub Task 72-53-21-250-051 Seal Bore Area Eddy Current. |
(2) For the purposes of these mandatory inspections, piece-part opportunity means:
(i) The part is considered completely disassembled when accomplished in accordance with the disassembly instructions in the manufacturer's engine manual; and
(ii) The part has accumulated more than 100 cycles-in-service since the last piece-part opportunity inspection, provided that the part was not damaged or related to the cause for its removal from the engine.”
(g) The parts added to the table of this AD are identified by an asterisk (*) that precedes the part nomenclature. Also, parts that have an Engine Manual Inspection Task and or Sub Task Number reference updated in the table of this AD, are identified by two asterisks (**) that precede the part nomenclature.
(h) Except as provided in paragraph (i) of this AD, and notwithstanding contrary provisions in section 43.16 of the Federal Aviation Regulations (14 CFR 43.16), these mandatory inspections shall be performed only in accordance with the ALS of the manufacturer's ICA.
