AD 70-15-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Mitchell Industries, Inc. | Auto Pilot Systems Instruments | Airworthiness Directives; MITCHELL INDUSTRIES, INC., doing business as EDO-AIRE MITCHELL: Applies to the Mitchell Century II, Century III (Serial Numbers 624 and below) and Stabilizer, Automatic Pilot and Automatic Aileron Stabilizer Instruments, and to Piper AutoControl III, Altimatic III and AutoFlite Automatic Pilot and Automatic Aileron Stabilizer Instruments |
Unsafe Condition
Slippage of servo bridle cable clamps and resultant binding of the control system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove Servo Bridle Cable Clamps (Mitchell P/N 42A173 or 42A184) and replace with new clamps (Mitchell P/N 42A173-1 or 42A184-1) per Mitchell Service Bulletin MB-1 (dated 2-11-68 or later revisions) or approved instructions.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Mitchell Century II, Century III (Serial Numbers 624 and below), and Stabilizer, Automatic Pilot and Automatic Aileron Stabilizer Instruments; Piper AutoControl III, Altimatic III, and AutoFlite Automatic Pilot and Automatic Aileron Stabilizer Instruments installed per listed Supplemental Type Certificates (STCs) for Aero Commander, Beech, Cessna, Helio, Maule, Piper, Riley 400, and Wren aircraft models.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.