AD 93-07-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | BAE Systems (Operations) Limited | ATP | Airworthiness Directives; British Aerospace Model ATP Series Airplanes |
Unsafe Condition
Possible loss of integrity and security of the flap drive system due to missing split pins on the four bolt and nut assemblies of the right gearbox drive at station 0.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a one-time general visual inspection of the primary flap drive torque tubes to check for split pins. If split pins are missing, check tighten bolts to 8 to 10 foot pounds torque prior to further flight and repeat every 14 days. Within 6 months, install split pins as per ATP-27-55. Installation of split pins terminates the requirements.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 14 days after the effective date of this AD (May 10, 1993) for the initial inspection. Missing split pins require check tightening prior to further flight and repeat every 14 days, with installation within 6 months after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
British Aerospace Model ATP series airplanes, serial numbers 2001 through 2049, inclusive.
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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