substantiation of compliance to necessary requirements for the entire repair. e. PURPOSE OF DATA. Engineering data to support repair procedure for Horizontal Stabilizer PIN 45A21002-0121 on Hawker Beechcraft 400A, S/N RK-244. 9. APPLICABLE REQUIREMENTS (list swank sectOns) CFR Title 14 Part 25.301[25-23), 25.303)25-23