AD 79-12-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Maule Aerospace Technology, Inc. | M-4 | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4-180C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4-210C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4-220C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4-220S | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4S | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-4T | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-5-180C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
| aircraft | Maule Aerospace Technology, Inc. | M-5-210C | Airworthiness Directives; Maule M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC Airplanes |
Unsafe Condition
Failure of the horizontal tail-to-fuselage front attach tube.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the horizontal tail-to-fuselage front attach tube per Maule SB No. 1 paragraphs (1) and (5). If cracks are found, replace with parts from Maule Aircraft Corporation per AC 43.13-1A before further flight. Modify the attach tube per SB No. 1 paragraphs (3) and (4). Record maintenance.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 25 hours' time in service after the effective date of this AD, or 60 days after the effective date whichever occurs first
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Maule Aerospace Technology, Inc. models M-4-210C, M-4-220S, M-4-220C, M-4-180C, M-5-210C, M-5-220C, M-5-235C, M-5-180C, and M-5-210TC with specified serial ranges: M-4 Series: 4 to 94, 1001 to 1045, 1S to 3S, 1T to 3T, 1C to 11C; M-4-210C: 1001C to 1117C; M-4-220S: 2001S; M-4-220C: 2001C to 2190C; M-4-180C: 3001C to 3006C; M-5-210C: 6001C to 6206C; M-5-220C: 5001C to 5057C; M-5-235C: 7001C to 7283C; M-5-180C: 8001C to 8004C; M-5-210TC: 9001C.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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