What information is captured in Block 10?

• A. Engine cycle counts for specific engines
• B. Total service history
• C. Airframe structural integrity
• D. Flight machine specifications

Answer: (A)

Block 10 of the AFTO Form 781 is specifically designated for capturing engine cycle counts for specific engines. This information is crucial because it tracks the number of cycles that each engine has undergone during operational use. Cycle counts are important for maintenance and safety assessments, allowing personnel to monitor engine performance and determine when maintenance actions or inspections are necessary based on usage.

The other options represent different categories of information that are not specifically captured in Block 10. Total service history generally encompasses a broader scope, documenting the entire history of the aircraft or system rather than focusing solely on engine cycles. Airframe structural integrity deals with the physical state and stresses to which the airframe has been subjected over time, which is documented in other areas of the form. Flight machine specifications typically include details about the aircraft's design and performance characteristics, which are also stored separately within the AFTO Form 781 system.