Instrument Rating IR(A) case studies
Instrument Rating IR(A) · Put your knowledge to work in context.
The Instrument Rating (IR(A)) is a Part-FCL pilot licence rating that allows an aeroplane pilot to operate under instrument flight rules, and this page is written for candidates studying the regulatory side of that rating within the EU framework. The material is organised around three domains: Flight Crew Licensing, aircrew medical fitness standards, and Flight Simulation Training Devices. The regulatory backbone is Regulation (EU) No 1178/2011, which sets the technical requirements and administrative procedures for civil aviation aircrew, supported by Commission Delegated Regulation (EU) 2020/723 on acceptance of third-country pilot certification and Regulation (EU) No 2015/340 for air traffic controllers. A key point for candidates is that only National Competent Authorities issue licences; EASA does not issue individual licences but provides technical support and interpretation. The Instrument Rating IR(A) case studies are 5 cases and about 2,647 words.
1IR revalidation by experience: the missing examiner hour
Captain A, 38, holds an IR(A) valid on the A320 until 30 November 2025. Today is 15 October 2025.
592 words, about 3 min2Expired IR: experience hours do not replace the renewal check
First Officer B, 41, held an IR(A) on the A320 that expired on 28 February 2025. Today is 15 October 2025.
535 words, about 3 min3New hypertension medication before Class 1 renewal
Captain C, 52, holds an IR(A) and a Class 1 medical certificate valid until 20 December 2025. In September 2025 he was diagnosed with hypertension.
502 words, about 3 min4Type 2 diabetes on metformin and single-pilot IR operations
First Officer D, 49, holds an IR(A) and a Class 1 medical valid until 10 February 2026. In August 2025 he was diagnosed with type 2 diabetes.
495 words, about 2 min5Simulator downgrade during an IR proficiency check
An examiner is conducting an IR proficiency check for a candidate in a Level D full flight simulator qualified for the A320. The check is about 60% complete when the motion system fails.
523 words, about 3 min