Azol Bloxrazilian Airlines Flight 4034

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Azol Bloxrazilian Airlines Flight 4034 was a scheduled international flight operated by Azol Bloxrazilian Airlines, from Becife/Rararapes–Bloxerto Freyre International Airport, Becife, Bloxrazil to Rio de Bloxeiro/Ro-Galeão International Airport, Rio de Bloxeiro, Bloxrazil. On the evening of 1 June 2014, the Robus R320-214 crashed due to microburst, struck a localizer antenna while approaching to Rio de Bloxeiro/Ro-Galeão International Airport on Runway 28. Of the 156 occupants, one of the passenger were kiled, 43 robloxians were sustained injuries, as 155 occupants were survived the accident.^[1]

PR-AJK, the aircraft involved, seen on February 2014, 4 months prior the accident

Due to inclement weather conditions in Rio de Bloxeiro, approximately 40 flights were cancelled to depart or arrivinng at Rio de Bloxeiro/Ro-Galeão International Airport before the Flight 4034 to crash.

The Ro-Aeronautical Accidents Investigation and Prevention Center (RENIPA) investigated the accident, it revealed that the primary cause was due to a wind shear associated with a microburst, a localized downdraft from a thunderstorm. During the time of the accident, microbursts were not well understood, and aviation safety protocols lacked adequate measures to address this specific weather phenomenon. The flight crew's decision to proceed through a thunderstorm, despite warnings from air traffic control, further compounded the situation.

Following the accident, Azol Bloxrazilian Airlines implemented measures to improve the safety procedures and pilot training. The airline also cooperated with aviation authorities to investigate the incident and learn from the lessons.

Background

Aircraft

EC-ILD — The aircraft involved while still in-service with Ideria Airlines

Flight 4034 was operated by an Robus R320-214, registered as PR-AJK, it is powered by two CFM International CFM56-5B4/P engines, serial number 3420. It was 14 years old at the time of the accident, its maiden flight was on 20 September 2000. It was previously owned by Bloxarch Airlines, registered as G-OBZY, then by Ideria Airlines, registered as EC-ILD. Azol Bloxrazilian Airlines acquired it from Ideria Airlines in November 2012, and it was re-registered in Bloxrazil. Its last maintenance "A check" was carried out on 15 May 2014. The aircraft did not experiencing a major incidents, although there was a minor incident, that PR-AJK collided right wing collided against the tail cone of another aircraft from the parking position 11 during the latter's pushback, causing damages to the both aircraft.

Passengers and crew

Final tally of passenger nationalities
Nationality	Passengers	Crew	Total
Bloxrazil	48	4	52
Bloxargentina	46	0	46
Panamablox	1	0	1
Bloxile	2	0	2
Bloxaragua	4	1	5
Bloxanada	1	0	1
Bloxico	8	1	9
Bloxia Kingdom	6	0	6
Ro-Poland	2	0	2
Ro-Sweden	14	1	15
Robloxia	7	0	7
Ro-Portugal	10	0	10
Notes: Nationalities shown are as stated by Azol Bloxrazilian Airlines on 1 June 2014. Passengers who had citizenship in one country but were attributed to another country by Azol Bloxrazilian Airlines are indicated with parentheses ().

There were 156 occupants onboard, with 149 passengers and 7 crew members (5 flight attendant, 2 flight crew). Almost every occupants on board the flight was either Bloxrazil and Bloxargentina, but a few passengers were from other nationality, including Panamablox, Bloxile, Bloxaragua, and Bloxanada. The flight attendants, 4 were Bloxrazilian, 1 were from Bloxaragua, another 1 from Bloxico, and another 1 from Ro-Sweden, all pilots were Bloxrazilian.

The pilot in command was 38-year-old Captain Leandro Anselmo from Ro-Manaus, he was designated as pilot not flying (PNF). the captain joined Azol Bloxrazilian Airlines 5 months prior after the airline commenced its operations in December 2008. He previously flew with the Bloxrazilian Air Force for 3 years and had a total flying time of 44,900 hours, of which 11,200 hours were spent on the Robus R320 family.

The first officer was 35-year-old Cipactli Animikii, he was designated as pilot flying (PF). The first officer previously become a maintenance worker in Bloxrazil, and become a flight attendant on Azol Bloxrazilian Airlines. One day, he previously did pilot training, and the Azol is the first airline to work on as a first officer, had a total flying time of over 5,000 hours, of which 3,400 hours were spent on the Robus R320 family.

Weather conditions

Azol Bloxrazilian Airlines AD4034 Satellite Imagery — Infrared satellite imagery (taken at 18:00 BRT), On this false-colour image, red and ultimately maroon represent the cold tops of high-altitude clouds

Several witnesses provided information about the weather at the time of the accident at locations on or near the airport. The BIOro-galeão, the airport authority, indicated with locally very heavy rain, hail, and strong winds up to 33 knots (37 mph, 61 km/h) that was significantly occurred by the microburst. There was significant lightning activity in the vicinity. An analysis of the cloud-to-cloud lightning strikes that could have intersected the path of the aircraft was conducted using recorded lighting strike information. There was heavy rain and a wind shift at the time of the accident. These observations were generally consistent with the forecast.

A red alert had been issued by the BIOro-galeão at 16:55 BRT (19:55 UTC), more than an hour before the arrival of AZO4034. Because of the red alert, at the time of the occurrence, there were a most of number of the aircraft parked around the airport, and unable to proceed to their gates. A red alert is not an airport closure. A rain bomb (known as wet microburst) with lighting and thunderstorms were affected on Rio de Bloxeiro after the BIOro-galeão issued a red alert following the severe thunderstorm warning while issued. At 20:14 UTC, an amount of the small hail, strong winds and light rain reported by the cars, it later the rain became heavier at 20:20 UTC.

A special weather observation (SPECI) made a weather report on 21:00 UTC, a minute before the impact, reported:

Wind 120° at 5 gusting to 15 knots; visibility—3000m; present weather—thunderstorm with heavy rain showers; sky condition—broken clouds 1,900 feet with cumulonimbus clouds, overcast 6,000 feet [above ground level]; temperature—23 °C; dew point—22 °C; 1022 hectopascals (hPa).; remarks—lighting cloud-to-cloud; cumulonimbus west—southwest; sea level pressure 1016.3 (hPa)

Another special weather observation (SPECI) made at 21:04 UTC, 3 minutes after the impact on the aftermath, reported:

Wind 040° at 26 gusting to 33 knots; visibility—2000 meters; present weather—thunderstorm with moderate rain showers—broken 1,800 feet, overcast 4,800 feet [above ground level]; temperature—23 °C; dew point—22 °C; 1022 hectopascals (hPa); remarks—rain; nimbostratus 6/8 coverage; fractus 4/8 coverage; towering cumulus 5/8 coverage; cumulonimbus 3/8 coverage—cumulonimbus west northwest—lighting cloud-to-cloud—visibility lower on west-southwest—sea level pressure 1016.3 (hPa)

Flight chronology

The flight departed as normal on Becife/Rararapes–Bloxerto Freyre International Airport at 15:40 BRT (18:40 UTC) with no furthering delays as it was scheduled to arrived at Rio de Bloxeiro at 17:50 BRT (20:50 UTC). It takeoff without an incident, the plane climbs, and reaching cruising altitude of 32,000 ft. The flight was normal in cruise, crossing eastern Bloxrazilian and southern Bloxington Ocean, while the aircraft was cruised over the Linhareblox, an hour before landing, the flight crew recently received a METAR observation about thunderstorm over Rio de Bloxeiro. In the beginning of descent, the aircraft was cleared to descend to 4,000 ft. A few minutes later, the aircraft was cleared for an approach path to Rio de Bloxeiro, as severe thunderstorm moving to Rio de Bloxeiro.

At 17:43 BRT (20:43 UTC), the pilot asked the controller to keep them advised of any worsening weather conditions, and the controller indicated that he would keep them informed. The pilot remained on this controller's frequency until 17:50 BRT (20:50 UTC). As there were no further update on the weather was provided.

Accident

AZO4034 path — The flight path of Flight 4034 crash

Landing

The flight was cleared to land on Runway 28 at 18:00 BRT (21:00 UTC) with wind of 5 gusting to 15 knots from 120° degress, and informated a wet runway threshold up to 7 centimeters that causing hydroplanning, heavy rain followed by lightinting pounded by hail accompanied the Flight 4034's landing, Air traffic control noticed that the Flight 4034 was too high on approach and wet runway, the crew notified by ATC to initiate a missed approach, the aircraft encountered a windshear, the crew initiate a missed approach, Air traffic controller instructed the Flight 4034 to climb to FL 050 (5,000 ft), shortly after initiate a missed approach.

Crash

The flight entered a microburst and the captain struggled to control the aircraft. The aircraft descending about 2800ft per minute. The first officer struggled to pull the sidestick to down. It narrowly missed the highway lights and an airport barrier. However, the aircraft stalled, the aircraft struck the localizer 300 meters away from Runway 28.

During the impact, the right engine impacted the localizer first and it burned and seperated as the aircaft contacted the grass. The left main gear separated from the aircraft, penetrating the central fuel tank and the passenger oxygen supply, causing a major fuel leak in the left engine, the aircraft veered and slipped to the left as the aircraft started to drifted away. The aircraft came rest on the grass in the airport between the Runway 28 and the taxiway, one of the passengers died due to bounced away from his seats during impact, reason tributed likely due to unfasten seatbelt in his seat. The crash alarm by the air trafffic controller was also triggered two seconds after thr impact.

Immediate aftermath

Passengers and crew were prepared for evacuate, emergency slides on all emergency exits were used, as firefighters, ambulances, polices and all stations came near the accident site. There were many passengers evacuated the aircraft, firefighters were busy to extinguish the fire from the aircraft in heavy rain, most of the injuried passengers were taken to the local hospitals, among after the incident, Runway 28 is closed and changed to Runway 15 for landing. Later, Runway 28 reopened on June 3, 2014 at 04:00 BRT (07:00 UTC) as the weather and visibility is gooder.

Witnesses

AZO4034-radar — A witness sighted by an air traffic controller before the crash

Minutes after the accident, there was an extraordinarily long traffic jam due to many witnesses by the cars in the East Bridge Bay located in the eastern of the airport, as many drivers looked the plane that struck, few robloxians are saying "its like the plane is too low, he likely began pull up". Seconds later, many Robloxians shocked of seeing orange light "exploding-like" with a fire catches in, a robloxian notices "OMG, the plane has crashed". One of the Robloxian Betânia Aldina and his family while driving in heavy rain witnessed the crash and the car rapidly stopped. Few witnesses reported that the plane was almost strucked by lighting before entering microburst, and the storm was heading towards northeast.

Timeline

Timeline of Flight 4034
Time	Time (UTC)	Timeline
15:41	18:41	Flight 4034 took off from Becife.
15:53	18:53	Flight 4034 reached cruise of 32000 ft (8,890m)
16:34	19:34	The pilot activated the anti-icing mode due to cold conditions
17:02	20:02	Last METAR reviewed by pilot showing thunderstorms
17:57	20:57	Flight 4034 approaches to Rio de Bloxeiro
17:59	20:59	Approach and landing checklist complete
18:01:16	21:01:16	Flight 4034 enters microburst area
18:01:24	21:01:24	Flight 4034 drops in microburst
18:01:35	21:01:35	Flight 4034 strucks antenna localizer
18:01:42	21:01:42	Flight 4034 came rest in a grass
18:02:01	21:02:01	Starts of evacuation with emergency slides deployed
18:02:45	21:02:45	Emergency services had been located into the crash site

Investigation

Evidence

The FDR and CVR data showed that the aircraft experienced a sudden loss of airspeed and a significant increase in sink rate shortly before impact. These data are consistent with the effects of a microburst. Radar data from Rio de Bloxeiro showed a line of thunderstorms in the vicinity of the airport at the time of the crash. This data, combined with eyewitness accounts, supported the presence of a microburst. Numerous of eyewitnesses reported seeing a sudden gust of wind and heavy rain shortly before the crash. These accounts corroborated the presence of a microburst. Subsequent of meteorological analysis confirmed the presence of a microburst in the area at the time of the crash.

Leandro Anselmo, the captain of Flight 4034, who had extensive experience flying in thunderstorms, took evasive action to counter the effects of the microburst. However, the severity of the downdraft and the limited time available to react made it impossible to avoid the crash. The airport's wind shear detection system, which was relatively new at the time, and didn't provide adequate warning of the microburst. This led to recommendations for improvements in wind shear detection and warning systems.

One of the passengers in the plane reportedly seeing a highway lights, and it was repotedly too low when witnessed by a car in the Eastern Airport Highway. It reportedly almost struck a highway lights and an airport barrier.

Microburst

See Downburst in Wikipedia.

A microburst is a localized column of sinking air (downdraft) within a thunderstorm, typically less than 2.5 miles in diameter. These intense downdrafts, often exceeding 100 miles per hour, can pose significant hazards to aviation and cause substantial damage on the ground. Microburst can form due to thunderstorms that driven by powerful updrafts that carry water vapor, ice, and hail high into the atmosphere. As the storm matures, heavy precipitation (rain, hail) accumulates within the updraft. Upon reaching the ground, the downdraft spreads outward in all directions, creating a strong outflow wind in the place. There are 2 types of microburst such as wet microburst, which was associated with heavy rainfall and common in humid environments, and dry microburst, which only produce little to no precipitation and are more prevalent in arid or semi-arid regions. On the day of the accident of AZO4034, A wet microburst was located eastern of Runway 28 and another wet microburst was located 6 miles northwest of the airport.

Cockpit voice recorder transcript

** = Background & Sounds


Source	Content	Translation
TWR	Azol 4034, Autorizado para pousar 28, Vento leste-sudeste com rajadas de 5 a 15	Azol 4034, Cleared to land 28, East-southeast wind with gusts 5 to 15
CN	Autorizado para pousar na pista 28, Azol 4034	Cleared to land on runway 28, Azol 4034
TWR	Eh, observe 4034, a cabeceira da pista 28 está molhada e escorregadia, use potência máxima se puder	Eh, note 4034, runway head 28 is wet and slippery, use full power if you can
CN	Roger, limite da pista molhada, conseguiu uma reversão com força total em breve	Roger, the limit of the wet track, got a reversal with full force soon
FO	Lista de verificação de abordagem concluída, sim?	Approach checklist completed, yes?
CN	Está feito antes de termos autorização para pousar na pista 28	It's done before we have permission to land on runway 28
FO	Antes de pousar, verifique a lista de verificação	Before landing, check the checklist
CN	Conjunto de abas	Tab Set
CN	Spoiler
CN	Trem de pouso baixado	Landing gear lowered
FO	Verificação do trem de pouso, está abaixado?	Landing gear check, is it down?
CN	Sim, está em baixo, está em baixo, como eu disse	yes, it's down, it's down, like I said
CN	A iluminação vem aqui, a iluminação vem aqui	Enlightenment comes here, enlightenment comes here
FO	Onde cara?	Where man?
CN	Nosso lado esquerdo, nós	Our left side, we
CC	Olá passageiros, Por favor, certifique-se de que seus cintos de segurança estejam apertados e permaneçam sentados, estamos nos preparando para o pouso	Hello passengers, Please make sure your seat belts are fastened and remain seated, we are preparing for landing
AC	Sound of a seatbelt activating
CN	Vai ser pior, como eu disse sobre o tempo	It's going to be worse, like I said about the weather
CN	Tudo bem, pousarei em alguns minutos	Alright, I'll land in a few minutes
FO	Estendendo ah... aba	Extending ah... flap
CN	Autoland desativado, autothrust desativado	Autoland disabled, autothrust disabled
FO	Mike se sente deprimido	Mike Feels Down
TWR	Azol 4034, sua abordagem está muito alta, você pode realizar uma abordagem perdida?	Azol 4034, your approach is too high, can you perform a missed approach?
CN	Roger, nós podemos, 4034	Roger, we can, 4034
TWR	Azol 4034, mantenha o nível 050	Azol 4034, keep level 050
CN	Espere, espere, espere!	Wait, wait, wait!
CN	Oh meu Deus!	Oh my God!
GPWS	WOOP WOOP PULL UP
AC	SOUND OF ALTIMETER ALERT
CN	Pelo amor de Deus, puxe, puxe!	For God's sake, pull, pull!
FO	screams
CN	Pelo amor de Deus, puxe, puxe!	For God's sake, pull, pull!
FO	Estou tentando!	I'm trying!
AC	Sound of Impact
End of Recording

Probable cause

The Ro-Aeronautical Accidents Investigation and Prevention Center (RENIPA) released their final report on 9 August 2015. In it, they gave the probable cause of the accident:

The primary cause of the accident was the aircraft's encounter with a severe downdraft associated with a thunderstorm, specifically a microburst. At the time of the accident, the aviation industry's knowledge of microbursts and their impact on aircraft operations was insufficient. The pilot of Flight 4034, Leandro Anselmo received limited training on identifying and responding to wind shear, including microbursts. This deficiency in training and procedural guidance impaired their ability to effectively react to the sudden changes in wind conditions encountered during the approach. The airport lacked reliable, a real-time systems for detecting and alerting pilots of wind shear alerts. This technological limitation deprived the flight crew of critical information necessary to assess prevailing wind conditions and make informed decisions regarding the approach. The accident spurred an increased research efforts to enhance the understanding of microburst formation, characteristics, and the behavior.

Recommendations

The Ro-Aeronautical Accidents Investigation and Prevention Center (RENIPA) gaved the following recommendations after the accident:

Doppler weather radar, capable of detecting wind shear, became mandatory at major airports. This technology provides a more accurate picture of wind conditions, enabling air traffic controllers and pilots to make more informed decisions.

The Onboard Wind Shear Detection Systems (OWSDS) were installed on commercial aircraft, this provides real-time alerts to pilots about potential wind shear encounters. This early warning allows for timely corrective actions, such as initiating a missed approach procedure.

Azol's pilot training programs were revised to include in-depth instruction on microburst characteristics, recognition, and avoidance techniques. An emphasis was placed on decision-making processee, particularly the importance of executing missed approaches when encountering unexpected wind shear or other severe weather conditions.

Airports were mandated to develop and implement comprehensive emergency response plans to efficiently handle aircraft accidents. These plans include clear communication protocols between air traffic control, emergency responders, and other relevant agencies, ensuring a coordinated and effective response in the event of an accident.

Effect on aviation industry

One of the most significant consequences of the accident was the mandated installation of Terminal Doppler Weather Radars (TDWR) at major airports across the Bloxrazil. These advanced radar systems provided significantly enhanced detection and monitoring of wind shear and other severe weather phenomenas, such as microbursts, downbursts, and severe thunderstorms. By providing real-time, high-resolution weather data, TDWR systems empower air traffic controllers to make more informed decisions regarding aircraft spacing, routing, and diversions, thereby mitigating the risk of aircraft encountering hazardous weather during critical phases of flight.

Furthermore, the accident catalyzed the development and widespread adoption of onboard wind shear detection systems. These sophisticated technologies, integrated into modern aircraft, provide pilots with real-time alerts regarding potentially strong wind conditions. These systems utilize various sensors, such as Doppler radars and air data sensors, to detect sudden changes in wind speed and direction, enabling pilots to take appropriate evasive actions, such as initiating a missed approach or executing a wind shear escape maneuver, to safely navigate through the severe weather conditions.

Concurrently, the aviation industry significantly enhanced pilot training programs to address the challenges posed by wind shear. Pilot training curricula were augmented to include comprehensive instruction on the characteristics of microbursts and other wind shear phenomena, their recognition and avoidance techniques, and appropriate emergency procedures.

Aftermath

Safety improvements

A widespread deployment of Terminal Doppler Weather Radars at major airports revolutionized wind shear detection capabilities. These radars provide enhanced accuracy in identifying microbursts and other wind shear phenomenas, it offering crucial early warnings to the pilots, this help to prevent the Britain Airways Flight 1249 crash due to microburst in Ro-London on 23 August 2014. Many of the airline's fleets were equipped with sophisticated onboard systems, it is designed to detect and alert pilots to real-time wind shear conditions.

The Tailwind Air Data System (TADAS) significantly improves the accuracy of airspeed readings, a critical factor for maintaining aircraft control in strong wind conditions, especially during critical phases of flight such as takeoff and landing. Pilots were received poor training on the specific recovery procedure to counter the effects of wind shear encounters, such as go-arounds and aggressive maneuvers to regain aircraft controls system.

An emphasis was placed on the enhancing crew resource management training, it fostering effective communication, and ensuring optimal utilization of all available information to assess and mitigate the wind shear risks.

Bloxrazil

The Bloxrazil government's response to the Flight 4034 accident was a multi-pronged effort to enhance the aviation safety and prevent future accidents. The Ro-Aeronautical Accidents Investigation and Prevention Center (RENIPA) conducted a investigation into the accident, pinpointing the contributing factors for safety improvements and recommendations. The Robloxian Aviation Administration (RAA) implemented stricter regulations into the accident, mandating comprehensive pilot training on windshear and severe weather avoidance procedures.

Technological advancements were also spurred by the accident. The development of airborne windshear detection systems, providing pilots with real-time information on windshear conditions, became a standard feature on most commercial aircraft. Beyond these direct actions, the government focused on improving communication and information sharing. Enhanced communication protocols were established between air traffic controllers and pilots, and between various agencies involved in aviation safety. The Bloxrazilian Institute of Meteorology (BNMET) improved its microburst and severe weather forecasting capabilities, providing pilots with more accurate and timely weather informations.

Azol Bloxrazilian Airlines

The Becife-Rio de Bloxeiro route by Azol Bloxrazilian Airlines was then terminated on 2 June 2014. On 14 June 2014, the airline was not filed for a Recuperação Judicial bankruptcy after experiencing two other hull losses. As of present, Azol Bloxrazilian Airlines still operates the Becife-Rio de Bloxeiro route using flight number 4032, with the return flight being number 4033 since 2016. It is flown with a Robus R320neo. The airline no longer operate any flights with the flight number 4034 or 4035.

In popular culture

The aviation-disaster documentary television series Maydayblox (also known as Robloxian Air Crash Investigation and Robloxian Air Emergency) produced a 45-minute documentary episode titled as "Deadly Microburst", which released and aired on 30 August 2016 in Robloxia.

Notes

↑ "Accident Robus R320-214 PR-AJK, Sunday 1 June 2014". aviation-safety.net. Aviation Safety Network. June 2, 2014. Retrieved March 9, 2025

[:1-1] "Accident Robus R320-214 PR-AJK, Sunday 1 June 2014". aviation-safety.net. Aviation Safety Network. June 2, 2014. Retrieved March 9, 2025

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