Birmingham, UK – An Air India Boeing 787-8 aircraft experienced an unusual incident on october 4th, as its Ram Air Turbine (RAT) deployed unexpectedly during the landing sequence at Birmingham Airport. the aircraft, operating as flight AI117 from Amritsar, completed a safe landing despite the unscheduled activation of the emergency system.
What is a Ram Air Turbine?
Table of Contents
- 1. What is a Ram Air Turbine?
- 2. Incident Details and Concerns
- 3. Recent Air India Challenges
- 4. Ram Air Turbine Systems: A Deeper Dive
- 5. Frequently Asked Questions About Ram Air Turbines
- 6. What potential system malfunctions could have triggered the Ram Air turbine (RAT) deployment during the Air India Boeing 787S landing approach?
- 7. Emergency Inspection Ordered After Air India’s 787 Deploys Ram Air turbine at Landing
- 8. What Happened with the Air India Boeing 787?
- 9. Understanding the Ram Air Turbine (RAT)
- 10. Details of the Air India 787 Incident
- 11. The DGCA Inspection: What’s Involved?
- 12. Potential causes of the RAT Deployment
- 13. Boeing 787 Dreamliner: A History of Reliability Concerns?
- 14. Implications for air India and Boeing
A Ram Air Turbine is an emergency power system on aircraft, designed to generate electrical power when all other power sources fail. Typically, activation signals a critical malfunction. According to the FAA, a RAT is deployed by airflow and isn’t normally engaged during routine operation. FAA Advisory Circular offers detailed guidance on these systems.
Incident Details and Concerns
Industry sources report that the RAT deployed even though the aircraft’s engines and electrical systems were functioning normally. This is particularly concerning given a similar event occurred in June of this year, involving an Air India 787 that crashed; in that incident, the RAT was also deployed. This raises questions about potential systemic issues within the airline’s 787 fleet.
Following the Birmingham incident, the Indian Pilot Association has called for immediate, thorough inspections of all Air India aircraft equipped with Ram Air Turbines. Some disruption to flight schedules is anticipated as airlines proactively address these concerns.
Recent Air India Challenges
This incident adds to a series of challenges for Air India. In September 2025, the airline reportedly leased back five 777-200LR aircraft to Delta Air Lines, with lease extensions denied. Furthermore, a report in July 2025 indicated the Indian Aviation Authority identified 51 safety issues with Air India, including the use of unqualified simulators.
| Date | Incident | Aircraft Type | Location |
|---|---|---|---|
| October 4, 2025 | Unexpected RAT Deployment | Boeing 787-8 | Birmingham, UK |
| June 2025 | Aircraft Crash (RAT Deployed) | Boeing 787 | [Location of Crash] |
| September 2025 | Aircraft Leaseback to Delta | Boeing 777-200LR | Global |
Did You Know? A Ram Air Turbine’s deployment typically indicates a severe power failure, prompting immediate inquiry to determine the root cause.
Pro Tip: Always review airline safety records before booking a flight, especially when traveling with airlines that have faced recent scrutiny.
Ram Air Turbine Systems: A Deeper Dive
The reliability of Ram air Turbine systems is crucial for aviation safety. Modern aircraft manufacturers like Boeing and Airbus incorporate redundancy into these systems, with multiple layers of checks and balances. However, unexpected deployments, as seen with Air India, highlight the importance of continuous monitoring and preventative maintenance. The aviation industry is constantly evolving its safety protocols,and incidents like these contribute to the ongoing refinement of these measures.
Frequently Asked Questions About Ram Air Turbines
- What does a Ram Air Turbine do? A RAT provides emergency power to critical aircraft systems when the engines and other power sources fail.
- Is a RAT deployment a serious issue? Yes, RAT deployment typically signals a important system malfunction and requires thorough investigation.
- What causes a RAT to deploy unexpectedly? The cause can be varied, including sensor failures, hydraulic issues, or software glitches.
- How frequently enough do RATs deploy in normal operations? rats are designed for emergencies and should rarely, if ever, deploy during routine flight.
- What is being done to address the Air India incidents? The Indian Pilot Association has requested comprehensive inspections of all Air India 787 aircraft.
What are your thoughts on the recent Air India incidents? Do you believe more stringent safety measures are needed in the aviation industry? Share your opinions and comments below.
What potential system malfunctions could have triggered the Ram Air turbine (RAT) deployment during the Air India Boeing 787S landing approach?
Emergency Inspection Ordered After Air India’s 787 Deploys Ram Air turbine at Landing
What Happened with the Air India Boeing 787?
On October 6th, 2025, an air India Boeing 787 Dreamliner (registration VT-AVG) experienced a meaningful incident during landing at Delhi’s Indira Gandhi International airport (DEL). The aircraft deployed it’s Ram Air Turbine (RAT) during the approach, triggering an immediate emergency inspection ordered by the Directorate General of Civil Aviation (DGCA). This event raises critical questions about aircraft systems, safety protocols, and the reliability of the 787 Dreamliner. The flight, AI101 from Moscow, landed safely, but the unexpected RAT deployment is prompting a thorough inquiry.
Understanding the Ram Air Turbine (RAT)
The RAT is a critical safety feature on modern aircraft like the Boeing 787. It’s essentially a small wind turbine that automatically extends into the airstream if the aircraft loses hydraulic pressure or electrical power.
* Purpose: To provide emergency power for essential flight controls – primarily the control surfaces (ailerons, elevators, rudder) – allowing the pilots to maintain control of the aircraft.
* Deployment: Typically triggered by a loss of engine power, hydraulic failure, or a significant electrical system malfunction.
* Operation: As the aircraft moves through the air,the RAT spins,generating hydraulic pressure or electrical power,depending on the aircraft’s design.
* Why it’s unusual during landing: RAT deployment during landing is highly unusual.It suggests a system malfunction or a combination of factors leading to a false indication of power loss.
Details of the Air India 787 Incident
Initial reports indicate the RAT deployed approximately 200 feet above the runway during the final approach. Air India confirmed the aircraft landed without further incident, and all passengers and crew were safe. However, the premature deployment is a serious concern.
* Aircraft Type: Boeing 787-8 Dreamliner
* Registration: VT-AVG
* Flight Number: AI101
* Origin: Moscow (DME)
* Destination: Delhi (DEL)
* Date: October 6th, 2025
* DGCA Response: The DGCA has mandated a complete inspection of the aircraft and initiated an investigation to determine the root cause of the RAT deployment.
The DGCA Inspection: What’s Involved?
The emergency inspection ordered by the DGCA will be extensive, covering multiple critical systems. Key areas of focus include:
- Hydraulic Systems: A thorough check of all hydraulic lines, pumps, and actuators to identify any leaks, blockages, or malfunctions.
- Electrical Systems: Examination of the aircraft’s electrical wiring,generators,and power distribution systems.
- Flight Control Systems: Detailed inspection of the flight control surfaces, linkages, and associated sensors.
- RAT Deployment System: Scrutiny of the RAT itself, its deployment mechanism, and the sensors that trigger its activation.
- Flight Data Recorder (FDR) Analysis: A comprehensive review of the FDR data to pinpoint the exact sequence of events leading to the RAT deployment.
- Swift Access Recorder (QAR) Analysis: Examination of the QAR data for any anomalies or unusual readings.
Potential causes of the RAT Deployment
Several potential causes are being investigated. It’s important to note that at this stage, these are speculative, and the investigation will determine the definitive cause.
* Sensor Malfunction: A faulty sensor could have incorrectly indicated a loss of hydraulic or electrical power, triggering the RAT.
* Hydraulic System Anomaly: A transient hydraulic pressure drop, even if not a complete failure, could have activated the RAT.
* electrical System Glitch: A temporary electrical fluctuation or surge might have caused a false alarm.
* Software Issue: A software bug in the aircraft’s flight control system could have misinterpreted data and initiated the RAT deployment.
* Foreign object Debris (FOD): Though less likely, the possibility of FOD impacting a sensor or hydraulic line is being considered.
Boeing 787 Dreamliner: A History of Reliability Concerns?
The Boeing 787 Dreamliner, while generally considered a safe aircraft, has faced scrutiny regarding its reliability in the past.
* Battery Issues (2013): Early in its service life, the 787 was grounded due to issues with its lithium-ion batteries, which posed a fire risk. These issues were subsequently addressed with design modifications.
* Sensor Problems: There have been reports of intermittent sensor malfunctions affecting various systems on the 787.
* Manufacturing Quality: Concerns have been raised about manufacturing quality control,particularly related to the aircraft’s composite structure.
This latest incident with the Air India 787 will undoubtedly add to the ongoing discussion about the 787’s overall reliability and the need for continued vigilance in maintenance and inspection procedures.
Implications for air India and Boeing
This incident has several implications:
* Air India: Potential operational disruptions due to the grounding of the affected aircraft for inspection and repairs. Damage to reputation if the investigation reveals systemic issues. Increased scrutiny from the DGCA.
* Boeing: Further pressure on the company to address reliability concerns with the 787. Potential