Handbook

UA.I.B.K2

RegulationsOperating RulesUA.I.B.K2
Exam Weight: 15-25%
Refs: 14 CFR parts 47, 48, 89, and 107, subpart B; AC 107-2; FAA-H-8083-25; FAA-G-8082-22

UA.I.B.K2: Requirement for the sUAS to be in a condition for safe operation.

ACS Area I — Regulations Task B: Operating Rules References: 14 CFR parts 47, 48, 89, and 107, subpart B; AC 107-2; FAA-H-8083-25; FAA-G-8082-22


Key Concepts

Regulatory Expectation: “Condition for Safe Operation”

Part 107 mandates that the remote pilot in command (PIC) perform a preflight inspection to ensure the small unmanned aircraft system (sUAS) is safe for operation. This requirement is crucial for operations over people, necessitating a more thorough preflight assessment due to increased risk. Considerations include the location of people beneath the flight path and potential weather impacts. Any configuration changes, such as camera swaps or payload additions, must be authorized in the operating instructions and securely attached; otherwise, the aircraft cannot operate over people under the applicable category.[4]

Good aeronautical decision-making (ADM) and risk management are essential. Safety depends on regulatory compliance, disciplined preflight planning, ADM, and risk mitigation to minimize hazards before launch.[6]

Safety Defects, Declarations of Compliance (DOC), and Records

For Categories 2 and 3 operations over people, compliance with safety requirements is documented via an FAA-accepted Declaration of Compliance (DOC). If a safety defect arises, the DOC holder must correct it. Failure to do so may lead to the FAA rescinding the DOC, halting operations over people until a new DOC is accepted. Owners/operators can address safety issues and submit a new DOC if the holder does not. DOC holders must maintain a support and notification process and provide operating instructions.[1]

Safety defects may be identified through complaints, bulletins, notices, or FAA findings. Upon identifying a safety issue, the DOC holder should inform owners about the issue and corrective measures or share a plan if a fix is pending. After developing a corrective action, the DOC holder must distribute it, test, analyze, or inspect using an FAA-accepted means of compliance (MOC), ensure no defects remain, and submit a new DOC. The FAA lists accepted DOCs on its website.[2] Maintain DOC-related records for at least 2 years after manufacturing ceases or after submitting the DOC for designers/modifiers, and retain the MOC description and justification as long as it remains accepted.[2]

Maintenance and Inspection: What Makes an sUAS Unsafe?

Appendix C outlines indicators of unsafe sUAS conditions:

  • Structural or skin cracking: Inspect for hidden damage and assess repairs before flight.[3]
  • Delamination of bonded surfaces: Inspect for hidden damage and complete necessary repairs before flight.[3]
  • Liquid or gel leakage: Identify the source, as it poses fire risks and degrades performance; repair before flight.[3]
  • Strong fuel smell: Inspect to find the source and address it before flight.[3]

As a remote PIC, treat these as red flags during preflight. Do not launch until discrepancies are resolved per manufacturer instructions and any applicable DOC/MOC limitations for operations over people.

Configuration, Environment, and Operational Limits that Affect Safety

  • For operations over moving vehicles outside a closed- or restricted-access site, only transit is allowed; sustained flight over moving vehicles is prohibited. This constraint should be considered in preflight planning.[5]
  • Category 1 operations over people apply to aircraft weighing 0.55 pounds (250 grams) or less. Knowing your aircraft’s weight category is crucial for determining applicable operational approvals and configuration controls.[5]

In-flight mechanical failures or structural issues should be treated as urgency conditions. Pilots should request assistance immediately if safety concerns arise; delays have led to accidents and fatalities.[7] Proactive risk management and immediate action protect people and property on the ground.

The current framework for small UAS operations in the National Airspace System (NAS), including these safety and compliance expectations, is based on the FAA’s part 107 rule. Relevant FAA handbooks and the Remote Pilot ACS are available to support study and operational proficiency.[8]

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