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| Date: | Saturday 19 December 2020 |
| Time: | 16:39 UTC |
| Type: |  Airbus A320-214 (WL) |
| Owner/operator: | Avianca |
| Registration: | N538AV |
| MSN: | 5398 |
| Year of manufacture: | 2012 |
| Engine model: | CFMI CFM56-5B4/P |
| Fatalities: | Fatalities: 0 / Occupants: 148 |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | 16.41 nm NNW of waypoint MIKOX -
 Colombia
|
| Phase: | En route |
| Nature: | Passenger - Scheduled |
| Departure airport: | Bogotá-Eldorado Airport (BOG/SKBO) |
| Leticia-Alfredo Vásquez Cobo Airport (LET/SKLT) | |
| Investigating agency: | Aerocivil |
| Confidence Rating: |  Accident investigation report completed and information captured |
Avianca flight AV9486, an Airbus A320-214 (N538AV) and a Hawker 800XP (N800NJ), were involved in an airprox incident about 124 km north of Leticia, Colombia.
Probable Cause
Lack of coordination between Air Traffic Control units, Bogotá Sector Sierra Echo (SE) and Leticia Approach (APP), as Bogotá Sector SE restricted the climb to flight level FL260 for aircraft N800NJ departing from Leticia, while simultaneously authorizing a descent to FL260 for flight AVA9486 en route to Leticia.
Contributing Factors
- High workload for a single CTA staff member in Bogotá ACC, who is responsible for two large control sectors, Bogotá NE and SE, without an additional controller to assist with coordination tasks.
- Frequent transmission and reception failures on frequency 128.8 MHz between levels FL190 and FL280.
- Reclassification of Class Alpha airspaces, where control service must be provided, to Class Golf airspaces, where only flight information service is offered.
- Absence of an operational letter of agreement between Bogotá Sector SE and Leticia Approach (TMA Amazónica) that would, among other things, allow for a standard, orderly, and safe transition of air traffic.
- Inadequate provision of traffic information from Bogotá Sector SE and Amazonas APP to aircraft under their responsibility in areas reclassified as Class Golf airspace.
- Execution of a maneuver contrary to that ordered by the onboard TCAS equipment during the RA alert by the crew of flight AVA9486.
Accident investigation:
 |
|
Sources:
Aerocivil
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 08-Nov-2024 13:09 | ASN | Added |
| 08-Nov-2024 13:17 | ASN | Updated [Total occupants, Narrative, ] |
Corrections or additions? ... Edit this accident description
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