Other State of Design
Airworthiness Directives (ADs) are issued to address unsafe conditions.
Aircraft on the Thai Register are required to comply with applicable ADs in accordance with Requirement of The Civil Aviation Authority of Thailand No.89 attach with TCAR AIR Part-39.
Additionally, Airworthiness Directive (AD) issued by CAAT for products, parts and appliances where Thailand are either state of register or state of design or state of design of modification in accordance with Air Navigation Act (BE 2497) Section 41/82 are required to be complied.
The list of all active ADs is provided in the following Table.
Total : 1315
AD NO.
2026-18-07
SUBJECT
Air Transport Association (ATA) of America Code 53, Fuselage.
APPLICABILITY
This AD applies to The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes, certificated inany category, as identified in Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13,2025.
ISSUED BY
FAA
AD NO.
2024-0144R1
SUBJECT
ATA 65 – Tail Rotor Drive – Shaft-Line – Check / Measurement / Modification
APPLICABILITY
EC 130 T2 helicopters, all serial numbers on which AH modification (MOD) 079809 has been
embodied in production.
ISSUED BY
EASA
AD NO.
2023-0214R1
SUBJECT
ATA 53 – Fuselage – Tail Rotor Drive Shaft / Rear Transmission Bearing Support – Inspections / Modification
APPLICABILITY
EC 130 T2 helicopters, all serial numbers on which AH modification (mod) 074581 has been
embodied in production; except those having AH MOD 0720245, mod 0790004 and mod 0790006
embodied.
ISSUED BY
EASA
AD NO.
2026-0177
SUBJECT
ATA 31 – Indicating / Recording Systems – Integrated Control Panels – Inspection
APPLICABILITY
Airbus A350-941 and A350-1041 aeroplanes, all manufacturer serial numbers.
ISSUED BY
EASA
AD NO.
2026-0176
SUBJECT
ATA 92 – Electrical Systems Installation – Battery Retaining Rods – Identification / Replacement
APPLICABILITY
Airbus A318-111, A318-112, A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, A319-133, A320-211, A320-212, A320-214, A320-215, A320-216, A320-231, A320-232, A320-233, A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, A320-273N, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232, A321-251N, A321-253N, A321-271N, A321-272N, A321-251NX and A321-271NX aeroplanes, all manufacturer serial numbers (MSN).
ISSUED BY
EASA
AD NO.
2026-17-03 (Correction)
SUBJECT
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section.
APPLICABILITY
This AD applies to International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5,V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines with a3rd stage high-pressure compressor (HPC) rotor blade having part number (P/N) 6A8353 or P/N6A8688 installed.
ISSUED BY
FAA
AD NO.
2026-0174
SUBJECT
ATA 05 – Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment
APPLICABILITY
CFM56-7B20, CFM56-7B22, CFM56-7B22/B1, CFM56-7B24, CFM56-7B24/B1, CFM56-7B26, CFM56-
7B26/B1, CFM56-7B26/B2, CFM56-7B27, CFM56-7B27/B1, CFM56-7B27/B3, CFM56-7B27A, CFM56-
7B27A/3, CFM56-7B20/2, CFM56-7B22/2, CFM56-7B24/2, CFM56-7B26/2, CFM56-7B27/2, CFM56-
7B20/3, CFM56-7B22/3, CFM56-7B22/3B1, CFM56-7B24/3, CFM56-7B24/3B1, CFM56-7B26/3,
CFM56-7B26/3F, CFM56-7B26/3B1, CFM56-7B26/3B2, CFM56-7B26/3B2F, CFM56-7B27/3, CFM56-
7B27/3F, CFM56-7B27/3B1, CFM56-7B27/3B1F and CFM56-7B27/3B3 engines, all serial numbers.
These engines are known to be installed on, but not limited to, Boeing 737-600, 737-700, 737-800,
737-900 and 737-900ER series aeroplanes.
ISSUED BY
EASA
AD NO.
2026-0172-E
SUBJECT
ATA 79 – Engine Oil – Oil Pump – De-Pairing
APPLICABILITY
RB211 Trent 768-60, 772-60, 772B-60 and Trent 772C-60 engines, all serial numbers (s/n).
These engines are known to be installed on, but not limited to, Airbus A330 aeroplanes.
ISSUED BY
EASA
AD NO.
2026-17-10
SUBJECT
Joint Aircraft System Component (JASC) Code 8530, Reciprocating Engine Cylinder Section.
APPLICABILITY
This AD applies to Lycoming Engines Model O-235, -A, -AP, -B, -BP, -C, -C1, -C1A, -C1B, -C1C, -C2A, -C2B, -C2C, -E1, -E1B, -E2A, -E2B, -F1, -F1B, -F2A, -F2B, -G1, -G1B, O-235-G2A, O-235-G2B, O-235-H2C, O-235-J2A, O-235-J2B, O-235-K2A, O-235-K2B, -K2C, -L2A, -L2C, -M1, -M2C, -M3C, -N2A, -N2C, -P1, -P2A, -P2C, and -P3C; O-540-A1A, -A1A5, -A1B5, -A1C5, -A1D, -A1D5, -A2B, -A3D5, -A4A5, -A4B5, -A4C5, -A4D5, -A4E5, -B1A5, -B1B5, -B1D5, -B2A5, -B2B5, -B2C5, -B4A5, -B4B5, -D1A5, -E4A5,-E4B5, -E4C5, -F1A5, -F1B5, -G1A5, -G2A5, -H1A5, -H1A5D, -H1B5D, -H2A5, -H2A5D, -H2B5D, -J1A5D, -J1B5D, -J1C5D, -J1D5D, -J2A5D, -J2B5D, -J2C5D, -J2D5D, -J3A5, -J3A5D, -J3C5D, and -L3C5D; IO-540-A1A5, -AA1A5, -AA1B5, -AB1A5, -AE1A5, -AC1A5, -AF1A5, -B1B5, -AG1A5, -B1A5, -B1C5, -C1B5, -C1C5, -C2C, -C4B5, -C4B5D, -C4C5, -C4D5, -C4D5D, -D4A5, -D4B5, -D4C5, -E1A5, -E1B5, -E1C5, -G1A5, -G1B5, -G1C5, -G1D5, -G1E5, -G1F5, -J4A5, -K1A5, -K1A5D, -K1B5, -K1B5D, -K1C5, -K1D5, -K1E5, -K1E5D, -K1F5, -K1F5D, -K1G5, -K1G5D, -K1H5, -K1J5, -K1J5D, -K1K5, -K2A5, -L1A5, -L1A5D, -L1B5D, -L1C5, -M1A5, -M1A5D, -M1B5D, -M1C5, -M2A5D, -N1A5, -P1A5, -R1A5, -S1A5, -T4A5D, -T4B5, -T4B5D, -T4C5D, -U1A5D, -U1B5D, -V4A5, -V4A5D, -W1A5, -W1A5D, and -W3A5D engines with a serial number listed in Table 2 or Table 3 of Lycoming Mandatory ServiceBulletin No. (MSB) 667A, dated March 12, 2026 (Lycoming MSB 667A), and an installed piston pinhaving part number (P/N) LW-13445 with an FAA Form 8130-3 from the original equipmentmanufacturer for production dated between January 7, 2021 to December 15, 2025. If the productiondate on the FAA Form 8130-3 cannot be determined, or if the FAA Form 8130-3 is not available, thisAD is applicable.
ISSUED BY
FAA
AD NO.
2026-17-02
SUBJECT
Air Transport Association (ATA) of America Code 57, Wings.
APPLICABILITY
This AD applies to The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in anycategory, as identified in Boeing Alert Requirements Bulletin B787-81205-SB570048-00 RB, Issue001, dated August 11, 2025.
ISSUED BY
FAA
AD NO.
2025-0094R2
SUBJECT
ATA 24 – Electrical Power – Overhead Panel Wires Interference – Inspection / Modification
APPLICABILITY
AB139 and AW139 helicopters, all serial numbers (s/n) from s/n 31201 to 32999 inclusive, and from s/n 41201 to 41999 inclusive.
ISSUED BY
EASA
AD NO.
2026-17-03
SUBJECT
Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section.
APPLICABILITY
This AD applies to International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5,V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines with a3rd stage high-pressure compressor (HPC) rotor blade having part number (P/N) 6A8353 or P/N6A8688 installed.
ISSUED BY
FAA
| AD NO. | SUBJECT | APPLICABILITY | ISSUED BY |
|---|---|---|---|
| 2026-18-07 | Air Transport Association (ATA) of America Code 53, Fuselage. | This AD applies to The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes, certificated inany category, as identified in Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13,2025. |
FAA
|
| 2024-0144R1 | ATA 65 – Tail Rotor Drive – Shaft-Line – Check / Measurement / Modification | EC 130 T2 helicopters, all serial numbers on which AH modification (MOD) 079809 has been embodied in production. |
EASA
|
| 2023-0214R1 | ATA 53 – Fuselage – Tail Rotor Drive Shaft / Rear Transmission Bearing Support – Inspections / Modification | EC 130 T2 helicopters, all serial numbers on which AH modification (mod) 074581 has been embodied in production; except those having AH MOD 0720245, mod 0790004 and mod 0790006 embodied. |
EASA
|
| 2026-0177 | ATA 31 – Indicating / Recording Systems – Integrated Control Panels – Inspection | Airbus A350-941 and A350-1041 aeroplanes, all manufacturer serial numbers. |
EASA
|
| 2026-0176 | ATA 92 – Electrical Systems Installation – Battery Retaining Rods – Identification / Replacement | Airbus A318-111, A318-112, A319-111, A319-112, A319-113, A319-114, A319-115, A319-131, A319-132, A319-133, A320-211, A320-212, A320-214, A320-215, A320-216, A320-231, A320-232, A320-233, A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, A320-273N, A321-111, A321-112, A321-131, A321-211, A321-212, A321-213, A321-231, A321-232, A321-251N, A321-253N, A321-271N, A321-272N, A321-251NX and A321-271NX aeroplanes, all manufacturer serial numbers (MSN). |
EASA
|
| 2026-17-03 (Correction) | Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. | This AD applies to International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5,V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines with a3rd stage high-pressure compressor (HPC) rotor blade having part number (P/N) 6A8353 or P/N6A8688 installed. |
FAA
|
| 2026-0174 | ATA 05 – Time Limits / Maintenance Checks – Airworthiness Limitations Section – Amendment | CFM56-7B20, CFM56-7B22, CFM56-7B22/B1, CFM56-7B24, CFM56-7B24/B1, CFM56-7B26, CFM56- 7B26/B1, CFM56-7B26/B2, CFM56-7B27, CFM56-7B27/B1, CFM56-7B27/B3, CFM56-7B27A, CFM56- 7B27A/3, CFM56-7B20/2, CFM56-7B22/2, CFM56-7B24/2, CFM56-7B26/2, CFM56-7B27/2, CFM56- 7B20/3, CFM56-7B22/3, CFM56-7B22/3B1, CFM56-7B24/3, CFM56-7B24/3B1, CFM56-7B26/3, CFM56-7B26/3F, CFM56-7B26/3B1, CFM56-7B26/3B2, CFM56-7B26/3B2F, CFM56-7B27/3, CFM56- 7B27/3F, CFM56-7B27/3B1, CFM56-7B27/3B1F and CFM56-7B27/3B3 engines, all serial numbers. These engines are known to be installed on, but not limited to, Boeing 737-600, 737-700, 737-800, 737-900 and 737-900ER series aeroplanes. |
EASA
|
| 2026-0172-E | ATA 79 – Engine Oil – Oil Pump – De-Pairing | RB211 Trent 768-60, 772-60, 772B-60 and Trent 772C-60 engines, all serial numbers (s/n). These engines are known to be installed on, but not limited to, Airbus A330 aeroplanes. |
EASA
|
| 2026-17-10 | Joint Aircraft System Component (JASC) Code 8530, Reciprocating Engine Cylinder Section. | This AD applies to Lycoming Engines Model O-235, -A, -AP, -B, -BP, -C, -C1, -C1A, -C1B, -C1C, -C2A, -C2B, -C2C, -E1, -E1B, -E2A, -E2B, -F1, -F1B, -F2A, -F2B, -G1, -G1B, O-235-G2A, O-235-G2B, O-235-H2C, O-235-J2A, O-235-J2B, O-235-K2A, O-235-K2B, -K2C, -L2A, -L2C, -M1, -M2C, -M3C, -N2A, -N2C, -P1, -P2A, -P2C, and -P3C; O-540-A1A, -A1A5, -A1B5, -A1C5, -A1D, -A1D5, -A2B, -A3D5, -A4A5, -A4B5, -A4C5, -A4D5, -A4E5, -B1A5, -B1B5, -B1D5, -B2A5, -B2B5, -B2C5, -B4A5, -B4B5, -D1A5, -E4A5,-E4B5, -E4C5, -F1A5, -F1B5, -G1A5, -G2A5, -H1A5, -H1A5D, -H1B5D, -H2A5, -H2A5D, -H2B5D, -J1A5D, -J1B5D, -J1C5D, -J1D5D, -J2A5D, -J2B5D, -J2C5D, -J2D5D, -J3A5, -J3A5D, -J3C5D, and -L3C5D; IO-540-A1A5, -AA1A5, -AA1B5, -AB1A5, -AE1A5, -AC1A5, -AF1A5, -B1B5, -AG1A5, -B1A5, -B1C5, -C1B5, -C1C5, -C2C, -C4B5, -C4B5D, -C4C5, -C4D5, -C4D5D, -D4A5, -D4B5, -D4C5, -E1A5, -E1B5, -E1C5, -G1A5, -G1B5, -G1C5, -G1D5, -G1E5, -G1F5, -J4A5, -K1A5, -K1A5D, -K1B5, -K1B5D, -K1C5, -K1D5, -K1E5, -K1E5D, -K1F5, -K1F5D, -K1G5, -K1G5D, -K1H5, -K1J5, -K1J5D, -K1K5, -K2A5, -L1A5, -L1A5D, -L1B5D, -L1C5, -M1A5, -M1A5D, -M1B5D, -M1C5, -M2A5D, -N1A5, -P1A5, -R1A5, -S1A5, -T4A5D, -T4B5, -T4B5D, -T4C5D, -U1A5D, -U1B5D, -V4A5, -V4A5D, -W1A5, -W1A5D, and -W3A5D engines with a serial number listed in Table 2 or Table 3 of Lycoming Mandatory ServiceBulletin No. (MSB) 667A, dated March 12, 2026 (Lycoming MSB 667A), and an installed piston pinhaving part number (P/N) LW-13445 with an FAA Form 8130-3 from the original equipmentmanufacturer for production dated between January 7, 2021 to December 15, 2025. If the productiondate on the FAA Form 8130-3 cannot be determined, or if the FAA Form 8130-3 is not available, thisAD is applicable. |
FAA
|
| 2026-17-02 | Air Transport Association (ATA) of America Code 57, Wings. | This AD applies to The Boeing Company Model 787-8, 787-9, and 787-10 airplanes, certificated in anycategory, as identified in Boeing Alert Requirements Bulletin B787-81205-SB570048-00 RB, Issue001, dated August 11, 2025. |
FAA
|
| 2025-0094R2 | ATA 24 – Electrical Power – Overhead Panel Wires Interference – Inspection / Modification | AB139 and AW139 helicopters, all serial numbers (s/n) from s/n 31201 to 32999 inclusive, and from s/n 41201 to 41999 inclusive. |
EASA
|
| 2026-17-03 | Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. | This AD applies to International Aero Engines AG (IAE AG) Model V2522-A5, V2524-A5, V2525-D5,V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 engines with a3rd stage high-pressure compressor (HPC) rotor blade having part number (P/N) 6A8353 or P/N6A8688 installed. |
FAA
|
Contact
| No | Enquiry Topic | Email Point of Contact |
|---|---|---|
| 1 | Aircraft Registration and De-Registration | [email protected] |
| 2 | Certification of Design and Production of Aircraft (DOA/POA), including: – Aircraft Modification and Repair Approval – Aircraft Type Certificate (TC) / Supplemental Type – Certificate (STC) Validation – Aircraft Noise Certificate | [email protected] |
| 3 | Certification of Airworthiness for Air Operator Certificate (AOC) Holders | [email protected] |
| 4 | Certification of Airworthiness for Non-Air Operator Certificate (Non-AOC) Holders (I.E. GA Aircraft) | [email protected] |
| 5 | Certification of Approved Maintenance Organisation (AMO) | [email protected] |
| 6 | Any Other Matters Not Covered Above | [email protected] |
