Accident and Investigation

Understanding Accident and Investigation under GCAA AAIR

Accident and investigation procedures in the UAE are grounded in ICAO Annex 13 principles and the UAE’s AAIR, forming essential knowledge for ATPL students and air law exams. When an occurrence happens, the State of Occurrence normally leads the investigation, while the States of Registry, the Operator, Design, and Manufacture have the right to appoint an Accredited Representative. If the State of Occurrence is unaware of an accident involving a UAE aircraft, the UAE Investigation Authority must notify the relevant States—especially the States of Occurrence, Design, and Manufacture—without delay. Qualifying events (accidents and serious incidents) are submitted to the ICAO ADREP database, and for certain aircraft categories a Preliminary Report is published within 30 days to share essential facts early.

On scene, the Investigator-In-Charge (IIC) has legal authority to control access to the site, evidence, and wreckage to protect the integrity of the investigation. If wreckage must be moved for safety or operational reasons before investigators arrive, crews must ensure thorough documentation, photography, and marking of original positions. Critical data sources—such as the CVR and FDR—must be safeguarded; organizations are required to implement procedures to physically and electrically isolate recorders to prevent inadvertent reactivation after a serious occurrence. Confidentiality is also protected: only the Investigation Authority has the authority to disclose safety information gathered during the investigation.

Accurate classification drives reporting. An accident includes occurrences where a person is seriously injured by aircraft operation—such as a ground handler injured by jet blast during taxi. A serious injury under AAIR includes a fracture of a bone, excluding fingers and toes. Reportable occurrences in AAIR Appendix A include operational deviations and system failures that pose significant risk—for example, an unstabilized approach requiring a go-around or an engine shutdown in flight. Routine activities such as de-icing during normal operations are not typically reportable. These thresholds ensure that safety-critical events are captured for analysis under national aviation regulations and ICAO procedures.

Investigations integrate technical expertise and regulatory powers. A Duty Investigator is designated to receive notifications and initiate the process. The IIC may control access to sites and evidence, while the State of Design and State of Manufacture must provide technical data and design information on aircraft systems relevant to the occurrence. Safety outputs include targeted safety recommendations addressed to any relevant organization or State authority. When a hazard has wider implications, the Authority may issue an SRGC—Safety Recommendation of Global Concern, underscoring the preventive, non-punitive nature of modern investigation procedures.

What this question bank covers

• Investigation roles: IIC authority, Accredited Representatives, Duty Investigator
• Notification and reporting: ADREP submissions and Preliminary Report timelines
• Occurrence classification: accident vs serious incident; serious injury criteria
• Reportable events (Appendix A): approach deviations, in-flight engine shutdowns
• Evidence protection: site control, wreckage handling, CVR/FDR isolation
• Safety recommendations and SRGC; confidentiality and disclosure rules