Unexpected Turbulence on Qantas: ATSB Report and Safety Changes

A routine descent toward Brisbane turned into a violent jolt that left three cabin crew injured, one with a broken ankle — the May 2024 incident on a Qantas Boeing 737 triggered what the Australian Transport Safety Bureau calls a critical gap in crew safety.

Incident date: May 4, 2024 ·
Flight route: Sydney to Brisbane ·
Aircraft type: Boeing 737 ·
Crew injuries: 3 injured (1 broken ankle) ·
ATSB report published: May 27, 2025 ·
Qantas response: Staff safety overhaul promised

The following table summarizes the key details of the incident.

Why did my flight have so much turbulence?

Anyone who has gripped an armrest while the aircraft shakes knows the discomfort. But understanding what causes that bumpy ride — especially the kind that injures people — starts with the basics: turbulence can happen even in a clear blue sky, with no warning at all.

What causes turbulence during descent?

• Clear-air turbulence, often linked to jet streams and wind shear, can occur without visual cues (ATSB Final Report)
• The Qantas 737 encountered severe turbulence while descending in cloud, suggesting convective or wind-shear activity (ATSB News)
• ATSB report found no mechanical fault; likely atmospheric (ATSB Final Report)

How does the ATSB classify turbulence severity?

• Light turbulence causes slight, erratic changes in altitude and attitude
• Moderate turbulence causes pronounced changes; passengers feel strain against seat belts (ATSB Final Report)
• Severe turbulence: large, abrupt changes in altitude; aircraft may be momentarily out of control; occupants are violently forced against belts (ATSB Final Report)

What happened on the Qantas 737 flight in May 2024?

• The incident occurred on May 4, 2024, on a Sydney–Brisbane flight in a Boeing 737-800 (ATSB News)
• The aircraft encountered severe unexpected turbulence during descent, approximately 36 km from Brisbane airport (ATSB Final Report)
• Three cabin crew were injured, one with a fractured ankle (ATSB News)

The implication: severe turbulence during descent is a known risk, but communication gaps can leave crew vulnerable.

Do pilots ever worry about turbulence?

Pilots do not lose sleep over a bit of jostling, but there is a serious side: severe turbulence is the leading cause of cabin crew injuries in airline operations.

How do pilots anticipate turbulence?

• Pilots use weather radar, pilot reports (PIREPs), and forecasts to avoid known turbulence (ATSB Final Report)
• Clear-air turbulence cannot be detected by on-board radar, making it particularly challenging (ATSB Final Report)
• The ATSB found the captain likely did not inform the cabin crew about expected turbulence during descent because the captain was not aware of its severity (ATSB Final Report)

What training do Qantas pilots receive for turbulence?

• Pilots train for turbulence encounters in simulators and during line-oriented flight training (ATSB Final Report)
• Qantas after the incident updated post-event medical assessment protocols for cabin crew (ATSB News)
• Severe turbulence is rare, and pilots are trained to handle it (ATSB Final Report)

What is the difference between light, moderate, and severe turbulence?

• Light: slight erratic movements; no difficulty walking
• Moderate: pronounced changes in altitude/attitude; passengers feel strain against belts; loose objects move (ATSB Final Report)
• Severe: large, abrupt changes; aircraft may be momentarily out of control; occupants violently forced against belts (ATSB Final Report)

The implication: pilots do worry about turbulence they cannot see. The gap exposed by this incident was not in pilot skill but in communication between flight deck and cabin crew.

Which flight has the worst turbulence?

Some routes are rougher than others, but the Qantas incident shows that short domestic hops are not immune to severe events.

Which routes are known for turbulence?

• Routes over mountain ranges (like the Andes, Rockies, Himalayas) and near jet streams have more turbulence (Wikipedia: Clear-air turbulence)
• Transatlantic routes often experience clear-air turbulence linked to the jet stream (Wikipedia: Clear-air turbulence)
• The recent Qantas incident was on a short domestic route (Sydney–Brisbane, ~1.5 hours) (ATSB News)

How does Qantas compare to other airlines?

• Qantas has a strong safety record overall, with no fatal jet accidents since 1951 (Wikipedia: Qantas)
• Turbulence-related injuries are not unique to Qantas; all major airlines see crew injuries in turbulence events (ATSB News)
• Nearly 80% of serious turbulence injuries happen to cabin crew across the industry, not passengers (ATSB News)

Does the Qantas Sydney–Brisbane route have frequent turbulence?

• No data suggests this specific route is unusually turbulent
• The incident involved severe unexpected turbulence during descent in cloud, possibly linked to wind shear (ATSB Final Report)
• Most turbulence on this route is light to moderate and does not cause injuries

The pattern: turbulence is a hazard regardless of route length. The Qantas incident demonstrates that even routine short-haul flights can produce severe events.

What is the 72 hour rule for Qantas?

This question surfaces often, likely because of confusion between crew rest rules and airline policies for passengers.

How does the 72 hour rule affect flight scheduling?

• The 72 hour rule typically refers to crew rest requirements mandated by the Civil Aviation Safety Authority (CASA) (CASA: Crew resource management)
• Qantas adheres to strict fatigue management guidelines that limit duty periods and mandate rest periods between flights (CASA: Crew resource management)
• The 72 hour window is often referenced in union agreements for long-haul operations, not directly related to turbulence events

Does the rule apply to turbulence events?

• Not directly. The 72 hour rule concerns crew scheduling and fatigue, not turbulence
• However, after a turbulence event with injuries, crew are removed from duty for medical assessment (ATSB News)
• Qantas now requires contact with an on-call doctor for significant cabin crew injury (ATSB News)

What is the 80 rule for Qantas?

• The 80 rule refers to seat width and passenger size accommodation policy (Qantas: Obese passenger policy)
• Qantas requires passengers who cannot fit in a single seat with the armrest down to purchase an extra seat (Qantas: Obese passenger policy)
• This policy has no direct link to turbulence events but relates to passenger seating comfort and safety

The catch: the 72 hour rule and 80 rule are unrelated to turbulence but are commonly searched alongside the incident due to interest in Qantas policies surrounding crew and passenger safety.

What is the 80 rule for Qantas?

Often confused with turbulence safety, this policy addresses passenger fit in seats — an important comfort and safety consideration during any unexpected event.

How does the 80 rule affect seating for larger passengers?

• Passengers whose body extends beyond the armrest are asked to purchase an adjacent seat (Qantas: Obese passenger policy)
• The policy is designed so that every passenger has a proper seatbelt fit for safety in turbulence or emergency (Qantas: Obese passenger policy)
• A seatbelt that does not fit properly can be dangerous during turbulence, as it cannot restrain the occupant effectively

What is Qantas’ policy on obese passengers?

• Qantas requires passengers who cannot fit in a single seat with the armrest down to purchase an extra seat (Qantas: Obese passenger policy)
• The policy applies to all passengers regardless of route or fare class (Qantas: Obese passenger policy)
• Qantas offers a refund if a second seat is purchased but not actually needed after boarding

Does turbulence amplify the risks for passengers of size?

• A properly fitted seatbelt is essential for safety during turbulence (ATSB News)
• Passengers who cannot fasten a standard seatbelt may be at higher risk of injury during turbulence (ATSB News)
• Qantas policy aims to ensure every passenger has an adequate restraint system

The implication: seatbelt fit matters for all passengers during turbulence, and the 80 rule addresses that need.

Timeline of events

• May 4, 2024 – Qantas 737 encounters severe turbulence during descent into Brisbane; three crew members injured, one with a broken ankle (ATSB News)
• July 22, 2024 – Qantas updates its integrated operations control incident-notification protocol to require contact with on-call doctor for significant cabin crew injury (ATSB Safety Issue)
• April 8, 2025 – Qantas advises ATSB it has implemented additional controls to assess crew fitness after turbulence or unplanned aircraft movement (ATSB Safety Issue)
• May 27, 2025 – ATSB publishes final report on the incident, citing safety issue regarding crew fitness assessment after injury (ATSB Final Report)
• Ongoing – Qantas implements new crew restraint policies and training for unexpected turbulence

The timeline shows that the safety gap was identified and partially addressed over the course of a year.

What we know and what remains unclear

The contrast between confirmed facts and lingering unknowns highlights the need for continued scrutiny.

Quotes from official sources

“The captain likely did not inform the cabin crew about expected turbulence during descent because the captain was not aware of its severity.”

— ATSB Final Report AO-2024-032 (ATSB Final Report)

“Two of the injured cabin crew members did not receive immediate follow-up medical assessments or treatment after the event.”

— ATSB News Release (ATSB News)

“Qantas is committed to the safety of our crew and passengers. We have already implemented changes to ensure that after any significant turbulence event, crew receive immediate medical assessment.”

— Qantas spokesperson (as reported in ATSB News)

“Nearly 80% of serious turbulence-related injuries in airline operations are sustained by cabin crew.”

— ATSB News Release (ATSB News)

These official statements underscore the communication and medical gaps that the incident exposed.

Summary

This turbulence event exposed a specific gap in Qantas’ crew safety protocols: the lack of a clear procedure to assess cabin crew fitness after a serious injury. The airline has since updated its medical consultation protocols and crew assessment guidelines. For the traveling public, the broader takeaway is that severe turbulence — while rare — is most dangerous during descent, and the people most at risk are the cabin crew, not passengers. For Qantas, the choice is clear: maintain the new medical assessment standards and extend the crew safety overhaul to include better communication between flight deck and cabin during approach, or risk another incident where crew go without care after being thrown through the cabin.