The Electronic MOR reporting systems is currently under development and this page is provided as prior notice of the new system which is planned for autumn 2013


Reporting of Accidents, Incidents and Occurrences

An aviation safety related event must be reported according to its category as below:

  1. Accident;
  2. Serious Incident; or
  3. Reportable Occurrence.


An accident generally relates to those occurrences where:

  1. people are fatally or seriously injured; or
  2. a failure adversely affects flight characteristics of an aircraft; or
  3. an aircraft is missing or inaccessible.

OTAR 1 or ICAO Annex 13 should be consulted for the full definition.

The Civil Aviation (Investigation of Air Accidents and Incidents) Regulations provides details on the reporting and investigation of Air Accidents and Serious Incidents.

Accidents must be reported to the Air Accidents Investigation Branch (AAIB) and to the Director of Civil Aviation in the shortest possible time. An accident is not a Reportable Occurrence and so a Mandatory Occurrence Report is not needed.

Serious Incident

A Serious Incident is generally defined as a circumstance where there was a high probability of an Accident. See ICAO Annex 13 for the full definition. A Serious Incident should be reported in the same way as for an Accident.

Reportable Occurrence

Certain occurrences must be reported under the Mandatory Occurrence Reporting (MOR) scheme. A reportable occurrence is generally defined as a circumstance that if not corrected could endanger an aircraft, its occupants or any other person. Any person involved in the operational aviation industry may report an MOR. Definitions and details on Mandatory Occurrence Reporting can be found in OTAR 13 and OTAC 13-1.

If you are unsure whether an occurrence is reportable, report it anyway. You can use the scheme to submit reports on an incident which fall outside the definition of a reportable occurrence.

The sole objective of Mandatory Occurrence Reporting system is for the OTAA to improve air safety by disseminating to industry information on common cause hazards identified through trend analysis of the MOR database. The MOR system will not be used to attribute blame or liability.

A “Reportable Occurrence” must be notified to the Director of Civil Aviation by completing one of the electronic forms at the links below. Please note that you must enter your email address on the form as this will be used to send a confirmation of receipt.

  • General Occurrences – Form OT 1601 (Forms planned to go live in autumn 2013)

  • Air Traffic Control – Form OT 1602 (Forms planned to go live in autumn 2013)

  • Air Traffic Service Engineering – Form OT 1603 (Forms planned to go live in autumn 2013)


All Occurrence Reports are treated confidentially by the OTAA to protect the identity of named individuals and to encourage full and free reporting wholly in the interests of improving safety. The Director of the OTAA may be contacted in confidence in relation to any queries of the confidentiality and submission of unidentified MORs.

Other Events

Birdstrikes must be reported separately using the electronic submission system. Where a birdstrike causes a “reportable occurrence”, an MOR must also be submitted. Dangerous goods incidents and accidents must be reported in accordance with OTAR 13.