Casualties unknown

2017-04-29: Airbus A320 — FIR Ateny (LGGG), PL

FIR Ateny (LGGG), PL

On April 29, 2017, an Airbus A320 was involved in an aviation accident near FIR Ateny (LGGG), PL. Investigators recorded the probable cause as: The cause of the incident was pilot error by the First Officer (F/O) involving exceeding the maximum climb rate in RVSM airspace. This summary draws on records from the Polish State Commission on Aircraft Accidents Investigation (PKBWL); 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe Polish State Commission on Aircraft Accidents Investigation (PKBWL)Primary reportUpdated 1785092869Data APIEditorial standards
Airbus A320
Photo: Tosaka / CC BY 3.0, via Wikimedia Commons

An Airbus A320 experienced a TCAS Resolution Advisory during climb to FL320 in RVSM airspace due to an excessive vertical speed of 3000 ft/min caused by pilot error.

Incident Overview

On 29 April 2017, an Airbus A320 (type not further specified) was cruising in RVSM airspace when the crew received a climb instruction from ATC to flight level FL320. During the climb, a Traffic Alert and Collision Avoidance System (TCAS) Resolution Advisory (RA) was generated. Flight Data Monitoring (FDM) analysis revealed that the vertical speed momentarily reached 3000 ft/min with a pitch angle of 6°, which triggered the TCAS RA. The situation was resolved after the autopilot was disengaged and the pitch angle reduced, causing the TCAS RA to cancel.

Cause

The investigation determined that the cause of the incident was pilot error by the First Officer (F/O), who exceeded the maximum climb rate allowed in RVSM airspace.

Contributing Factors

Two factors were identified as contributing to the occurrence:

  • Improper crew coordination.
  • Moderate turbulence.

Operator Actions

Following the incident, the operator took the following preventive measures:

  • A meeting with both pilots to discuss the event.
  • Scheduling both pilots for additional simulator training focusing on RVSM procedures.
  • Issuing a safety bulletin covering a discussion of the incident.

Safety Recommendations

No safety recommendations were formulated by the investigating commission.

Probable cause

The cause of the incident was pilot error by the First Officer (F/O) involving exceeding the maximum climb rate in RVSM airspace.

Investigation report by the Polish State Commission on Aircraft Accidents Investigation (PKBWL). Original record: https://pkbwl.gov.pl/raporty/2017-0881/. This page is a structured re-presentation; facts and quotes are in the Panstwowa Komisja Badania Wypadkow Lotniczych (PKBWL), Poland.