Regulations & Safety
DGCA Orders Boeing Fuel Switch Inspections After Air India Crash
Indian aviation authority mandates Boeing fleet checks following fatal crash linked to fuel control switch failure. Global carriers initiate parallel inspections.
Aviation Safety Crisis: DGCA Mandates Boeing Fuel Switch Inspections After Air India Crash
The Directorate General of Civil Aviation (DGCA) has issued an urgent directive requiring all Indian airlines to inspect fuel control switch locking mechanisms on Boeing aircraft by July 21, 2025. This mandate follows preliminary findings from the Air India Flight AI171 crash investigation, which revealed both engines lost fuel supply seconds after takeoff due to unexplained fuel switch movement. The order affects multiple Boeing models including 737s and 787s, with global carriers like Etihad and Singapore Airlines initiating parallel inspections despite Boeing and FAA assurances of system safety. This development highlights critical tensions between advisory bulletins and mandatory safety protocols in aviation regulation.
Background of the Fuel Switch Safety Concern
The current safety concern stems from a 2018 advisory issued by the U.S. Federal Aviation Administration (FAA), known as Special Airworthiness Information Bulletin (SAIB) NM-18-33. This bulletin highlighted the potential for disengagement in the locking mechanisms of fuel control switches on several Boeing aircraft models. These mechanisms are designed to prevent accidental movement of switches from the RUN to the CUTOFF position, which could otherwise lead to engine shutdown during flight.
At the time, the FAA did not categorize this issue as an “unsafe condition” requiring a mandatory Airworthiness Directive. Instead, the agency recommended that operators inspect the switches during routine maintenance. Boeing aircraft, including the 737 and 787 series, were identified as having similar switch designs that could be susceptible to this issue. The switches are spring-loaded and located beneath the thrust levers, requiring a deliberate lift-and-move action to change position, an intentional safeguard meant to prevent inadvertent shutdowns.
Despite these recommendations, many airlines, including Air India, did not act on the advisory due to its non-mandatory status. The assumption that the switch design was robust enough to prevent accidental movement has now come under scrutiny following the Air India crash. The failure to universally adopt even advisory-level safety recommendations has exposed a significant gap in global aviation safety compliance.
The Air India Flight AI171 Crash and Preliminary Findings
On June 12, 2025, Air India Flight AI171, a Boeing 787-8 Dreamliner, crashed shortly after takeoff from Ahmedabad, resulting in the deaths of all 241 passengers and crew onboard, as well as 19 individuals on the ground. The Aircraft Accident Investigation Bureau (AAIB) released a preliminary report on July 12, 2025, revealing a critical failure involving the aircraft’s fuel control switches. According to flight data, both switches moved from RUN to CUTOFF within three seconds of liftoff, leading to a complete loss of engine thrust.
The cockpit voice recorder captured a brief but alarming exchange between the pilots. One asked, “Why did you cut off?” while the other replied, “I did not do it.” The report confirmed that the switches briefly returned to the RUN position, but it was too late to recover engine power. The aircraft’s throttle control module had been replaced twice in recent years, once in 2019 and again in 2023, but neither replacement was linked to issues with the fuel switches.
Importantly, Air India confirmed that it had not conducted the inspections recommended in the 2018 FAA advisory. The switches involved in the crash bore the same part number (4TL837-3D) flagged in the bulletin. This raises questions about whether adherence to even non-binding advisories should be considered essential when dealing with components that have known vulnerabilities and are used across multiple aircraft models.
DGCA’s Directive: Scope and Requirements
In response to the preliminary findings, the DGCA issued a binding airworthiness directive on July 14, 2025. The directive mandates inspections of all Boeing aircraft models in Indian fleets that use similar fuel control switch mechanisms. These include the Boeing 717, 737 (including MAX variants), 747, 757, 767, 787, MD-11, and MD-90. The inspections must be completed by July 21, 2025, and airlines are required to submit detailed inspection plans and post-inspection reports to the DGCA.
The inspection process involves verifying that the fuel control switches require a deliberate lifting action before movement. If a switch can be moved without lifting, it is deemed faulty and must be replaced. The DGCA emphasized that “strict adherence to the timeline is essential for continued airworthiness.” This directive affects more than 150 aircraft operated by Indian carriers such as Air India, IndiGo, Akasa Air, and SpiceJet. Notably, Boeing 777s are excluded due to different switch designs.
As of July 14, Air India reported that it had inspected approximately 50% of its Dreamliner fleet, with no malfunctions found. The airline is working to complete the remaining inspections within the mandated timeline. The DGCA’s move represents a significant shift in regulatory posture, adopting a more precautionary approach in the face of potential systemic vulnerabilities.
Global Aviation Industry Response
Following the release of the AAIB’s preliminary report, several international airlines initiated their own inspections. Etihad Airways issued internal bulletins advising pilots to handle fuel switches with increased caution and instructed maintenance crews to check the locking mechanisms. Singapore Airlines followed suit, launching similar inspections across its 787 fleet. South Korea’s Ministry of Land, Infrastructure and Transport also announced plans to conduct inspections on Boeing aircraft operated domestically.
These proactive steps contrast with the positions taken by the FAA and Boeing. Between July 11 and 14, both organizations circulated internal communications asserting that the fuel switch design does not constitute an unsafe condition. Boeing issued a Multi-Operator Message reiterating that the FAA’s 2018 advisory remains valid and that no mandatory action is required. However, this stance has not deterred other regulators and airlines from taking preventive measures.
The divergence in responses underscores a broader issue in aviation regulation: the lack of harmonization across jurisdictions. While some authorities treat advisories as sufficient grounds for mandatory action, others maintain a more conservative approach. This inconsistency can lead to gaps in safety oversight, particularly when identical components are used globally.
“This exposes critical flaws in non-mandatory safety bulletins. When identical components fly worldwide, ‘advisory’ status creates preventable vulnerabilities.”, Captain Amit Singh, Aviation Safety Specialist
Technical Analysis of Fuel Control Switches
The fuel control switches in Boeing aircraft are integral to engine operation, acting as the final gatekeepers for fuel flow. In the 787 cockpit, these switches are located beneath the thrust levers and are protected by brackets. They are spring-loaded and designed to require a lift-and-move action, minimizing the risk of accidental shutdowns during flight. However, if the locking mechanism becomes disengaged, either due to improper installation, wear, or manufacturing defects, the switch can move freely, posing a significant hazard.
Engineering analyses suggest three primary failure scenarios: mechanical disengagement of the lock, human error during high-workload phases like takeoff, and electronic anomalies that falsely indicate switch movement. The AAIB is currently exploring all three possibilities. Notably, the 2018 FAA advisory was based on confirmed cases of mechanical disengagement in 737 models, where improper assembly led to similar vulnerabilities.
Maintenance protocols require the throttle control module (TCM), which houses the fuel switches, to be replaced every 24,000 flight hours. While Air India followed this schedule, the replacements do not automatically verify the integrity of the locking mechanism. This gap in the maintenance process may have contributed to the undetected vulnerability in the aircraft that crashed.
Regulatory and Safety Implications
The DGCA’s directive marks a significant departure from traditional regulatory practices, where advisories are often treated as optional. By converting a seven-year-old FAA advisory into a mandatory inspection order, the DGCA has set a precedent that may influence other aviation authorities. The incident also reignites the debate over the effectiveness of non-mandatory safety communications. Critics argue that advisories, while informative, lack the enforcement power needed to ensure compliance. The fact that Air India had not acted on the 2018 advisory despite using the same switch models highlights the limitations of relying solely on voluntary adherence.
Furthermore, the tragedy has sparked discussions about the role of human factors versus mechanical failure. The AAIB has not concluded whether the switch movements were intentional or accidental. Speculations about pilot error or suicide have been strongly condemned by the Indian Commercial Pilots Association, which emphasizes the need for evidence-based conclusions. The final AAIB report, expected within 12–18 months, will be crucial in determining the root cause and guiding future regulatory decisions.
Conclusion
The DGCA’s July 21 inspection deadline represents a pivotal moment in aviation safety regulation. By mandating inspections based on a previously non-binding advisory, the regulator has demonstrated a proactive approach to risk management. This action may serve as a model for other countries grappling with similar safety concerns, particularly when components are shared across global fleets.
As the aviation industry awaits the final findings of the AAIB investigation, the focus remains on ensuring that all potentially affected aircraft are thoroughly inspected. The incident underscores the need for greater international coordination in safety standards and highlights the importance of acting on known vulnerabilities before they result in tragedy.
FAQ
What aircraft models are affected by the DGCA directive?
The directive applies to Boeing 717, 737 (including MAX variants), 747, 757, 767, 787, MD-11, and MD-90 aircraft registered in India.
What is the deadline for completing inspections?
All inspections must be completed by July 21, 2025, with reports submitted to the DGCA.
Why did the FAA not issue a mandatory directive in 2018?
The FAA considered the issue a potential risk but did not classify it as an unsafe condition, issuing an advisory instead of a mandatory directive.
Sources
Photo Credit: Business Today
Regulations & Safety
Brazil ANAC Suspends Aircraft Certifications After Budget Freeze
Brazil’s ANAC halted all aircraft certifications and aviation exams after a federal budget freeze cut its funding by R$ 24 million.
This article summarizes reporting by Bloomberg by Rachel Gamarski.
Brazil’s National Civil Aviation Agency (ANAC) has suspended all aircraft certification processes and aviation professional exams following a federal budget freeze, threatening to delay airline fleet expansions and exacerbate labor shortages.
The operational cuts, announced by the regulator on June 1, 2026, include an immediate 40 percent reduction in oversight and inspection activities. The reductions stem from Decree 12.990, published by the Brazilian Federal Government on May 29, 2026, which mandates an 18 percent linear reduction in the execution limits for federal agencies. Bloomberg reported on June 7, 2026, that the halt in approvals arrives just as carriers are attempting to meet high travel demand and resolve existing fleet constraints.
Impact on fleet expansion and airline operations
The suspension of aircraft certifications effectively blocks new airframes from entering the Brazilian civil aviation market. According to Bloomberg, the regulatory freeze threatens to delay the arrival of new aircraft and planned capacity expansions. Airlines operating in Brazil are currently working to address fleet shortages while managing robust passenger demand.
In an official statement, ANAC emphasized the severity of the situation.
“Without certification, there is no operation of new aircraft in the Brazilian civil aviation market.”
The budget freeze also halts exams for pilots and flight attendants. This suspension is expected to restrict the pipeline of new aviation professionals, compounding existing labor pressures within the sector. Flying clubs, maintenance workshops, and parts manufacturers are broadly affected by the reduction in regulatory services.
Broader regulatory and economic consequences
The ANAC budget reduction totals R$ 24 million and is part of a larger fiscal austerity initiative by the Brazilian government. The broader measure freezes approximately R$ 24 billion across various public administration sectors to meet 2026 fiscal targets. This includes a R$ 300 million cut distributed across Brazil’s 11 regulatory agencies.
Beyond the suspension of certifications, ANAC has been forced to dismiss outsourced workers, halt information technology investments, and cancel its participation in international forums and institutional safety events.
The Committee of Federal Regulatory Agencies (COARF) issued a statement on June 2, 2026, expressing deep concern over the budget cuts. The committee warned that the reductions threaten the legal security of investments and the regulatory stability required for economic growth, particularly as the government pursues an infrastructure concession agenda.
ANAC noted that budget freezes impacting core regulatory activities cause direct harm to society and lead to a drop in revenue, specifically citing the suspension of certification actions as a primary driver of these financial losses.
AirPro News analysis
The suspension of ANAC certification activities creates an immediate bottleneck for Brazilian operators relying on new aircraft deliveries to modernize fleets and expand route networks. Carriers such as Azul, Gol, and LATAM Airlines Brasil depend on a steady flow of regulatory approvals to induct new Airbus, Boeing, and Embraer aircraft into commercial service.
A prolonged freeze on certifications and professional exams will likely force airlines to extend the leases of older, less efficient aircraft to maintain capacity. This dynamic could increase operating costs and place upward pressure on ticket prices in a market already sensitive to fuel and currency fluctuations. The disruption to pilot and flight attendant credentialing also risks creating a medium-term staffing deficit, limiting the ability of airlines to scale operations once the budget impasse is resolved.
Sources: Bloomberg, Agência Nacional de Aviação Civil (ANAC)
Photo Credit: Elza Fiúza – ABr
Regulations & Safety
Iberia A350 Winglet Damaged in Guayaquil Water Salute Incident
An Iberia A350-941 struck a fire vehicle during a water cannon salute at Guayaquil Airport, grounding the aircraft and cancelling Flight IB132.
This is a developing story. Information may change as official details are released.
This article summarizes reporting by Agencia EFE, Primicias, and Ecuavisa.
An Iberia Airbus A350-941 sustained damage to its left winglet on June 4, 2026, after striking a fire department vehicle during a ceremonial water cannon salute at José Joaquín de Olmedo International Airport (GYE) in Guayaquil, Ecuador, forcing the cancellation of its scheduled transatlantic flight.
The incident occurred at 16:56 UTC (11:56 local time) as the widebody aircraft was preparing to operate Flight IB132 to Madrid. According to reporting by Agencia EFE and local Ecuadorian outlets, the water salute was arranged to mark a temporary equipment upgrade on the route, with the Airbus A350-900 replacing the Airbus A330-200 typically used by the Spanish flag carrier.
Ground collision during ceremonial salute
Terminal Aeroportuaria de Guayaquil S.A. (TAGSA), the airport operator, confirmed the sequence of events in an official statement. According to Primicias, TAGSA reported that during taxi, the tip of the aircraft’s wing made contact with the extension arm and turret of a fire engine belonging to the airport’s Fire Extinguishing Service (SEI).
Following the collision, the flight crew interrupted the departure sequence and returned the aircraft to the apron for a technical inspection. Agencia EFE reported that no injuries occurred among the passengers or crew. The aircraft, registered as EC-NXD, was grounded pending a full damage assessment, and passengers were subsequently rebooked on alternative flights.
Regulatory oversight and fleet implications
The Dirección General de Aviación Civil (DGAC) of Ecuador has initiated an investigation into the ground collision. The regulatory authority will examine the coordination between the flight crew, air traffic control, and the SEI personnel conducting the water arch maneuver. No official cause has been determined.
The grounding of the Airbus A350-941 disrupts Iberia’s planned capacity increase for the Guayaquil market. The aircraft swap from the Airbus A330-200 was intended to provide additional seats and cargo volume on the direct route to Spain. The airline has not yet specified how long the damaged airframe will remain out of service while repairs are evaluated and executed.
AirPro News analysis
Water cannon salutes are a long-standing aviation tradition used to celebrate inaugural flights, retiring captains, and new aircraft types. However, we note that these ceremonial events carry inherent operational risks. Positioning heavy fire apparatus near active taxiways and maneuvering large aircraft through restricted clearances requires precise coordination. While relatively rare, ground collisions during these salutes highlight the tension between marketing traditions and the strict safety margins required in commercial aviation operations. The resulting damage to a high-value asset like an Airbus A350 underscores the financial and operational exposure operators face during non-standard ground maneuvers.
Sources: @AviacionGYE (X)
Photo Credit: AviacionGYE – X
Regulations & Safety
NTSB Reports United Airlines Flight 169 Newark Approach Incident
NTSB preliminary report details United Airlines Flight 169 striking a light pole at Newark due to low airspeed and gusty winds during approach.
This article is based on an official press release from the National Transportation Safety Board (NTSB).
On June 4, 2026, the National Transportation Safety Board (NTSB) released its preliminary report detailing the May 3 accident involving United Airlines Flight 169 at Newark Liberty International Airport (EWR). The incident highlights the operational challenges of landing heavy widebody aircraft during gusty conditions on constrained runways.
The Boeing 767-400ER, arriving from Venice, Italy, struck a light pole on the New Jersey Turnpike while on short final approach. According to the NTSB’s factual findings, the aircraft crossed the busy highway at an altitude of just 19 feet above the ground after its airspeed decayed during the descent.
The collision caused substantial damage to the aircraft and resulted in minor injuries to a commercial truck driver on the ground. The NTSB has officially classified the event as an accident, prompting immediate safety reviews and procedural updates from the airline.
Flight Details and the Approach
According to the NTSB preliminary report (DCA26FA194), United Airlines Flight 169 was operating from Venice Marco Polo Airport to Newark on May 3, 2026. The 23-year-old Boeing 767-424ER (registration N77066) was carrying 231 individuals, comprising 220 passengers, three flight crew members, and eight cabin crew members.
The flight proceeded normally until the descent phase. The NTSB notes that the flight crew initially planned to land on Runway 4R. However, air traffic control changed the runway assignment twice due to challenging weather conditions. Winds were reported at 19 knots and gusting up to 30 knots, leading controllers to ultimately clear the aircraft for Runway 29.
Cockpit Dynamics and Warnings
The NTSB report provides critical insight into the cockpit environment during the final moments of the flight. The captain was the pilot flying, while the first officer monitored the flight instruments.
As the aircraft descended toward the runway, its airspeed began to decay. The first officer issued verbal warnings to the captain regarding the aircraft’s energy state.
“hey you are slow… you are still slow and a little low”
According to the NTSB, the captain acknowledged hearing the “airspeed slow” callout but stated he felt the airplane remained in a safe position to continue the landing.
The Collision and Aftermath
The decaying airspeed and low glide path culminated in the aircraft crossing the New Jersey Turnpike at an altitude of just 19 feet above the ground. During this low pass, the aircraft’s landing gear and underside struck a light pole located on the highway.
The NTSB report states that the captain recalled hearing a “thump” just before touchdown, while the first officer felt a “mild jolt” as they neared the runway threshold. Despite the impact, the Boeing 767 landed safely and taxied to the gate under its own power.
Ground Impact and Injuries
Debris from the severed light pole fell onto the southbound lanes of the turnpike, striking a commercial tractor-trailer operated by Baltimore-based H&S Bakery, as well as a Jeep traveling on the highway.
While no passengers or crew members on the aircraft were harmed, the NTSB confirmed that the truck driver, Warren Boardley, sustained minor injuries from shattered glass. He was treated at a local hospital and subsequently released. The truck sustained damage to its windshield and aluminum siding.
Post-flight inspections of the Boeing 767 revealed substantial damage, including three punctures on the fuselage and slash marks on one of the landing gear tires. This damage led the NTSB to officially classify the event as an accident.
Industry Response and Safety Measures
Following the accident, United Airlines took immediate administrative and procedural actions. The airline removed the involved flight crew from service pending an internal safety review.
Furthermore, United Flight Operations issued an Operations Alert to its pilots regarding arrivals at EWR’s Runway 29. The alert emphasized the importance of relying on visual glideslope indicators (VGSI/PAPI) to ensure safe obstruction clearance. A subsequent Pilot Bulletin was also issued regarding short runway landing guidance.
AirPro News analysis
We note that Runway 29 is the shortest runway at Newark Liberty International Airport, measuring 6,725 feet. It features a displaced threshold designed specifically to provide a safety buffer from the adjacent, highly congested Interstate 95. Aircraft landing on this runway routinely pass at low altitudes over the highway.
Aviation analysts frequently point out that the Boeing 767-400ER’s extended fuselage can create visual illusions for pilots during the landing flare. Because the pilot’s eye level sits high in the cockpit while the main landing gear hangs significantly lower, precise glide path management is absolutely critical to ensure obstacle clearance. The combination of gusty winds, a late runway change, and the specific ergonomics of the 767 likely compounded the difficulty of this approach.
Frequently Asked Questions (FAQ)
Was anyone injured in the United Airlines Flight 169 accident?
No passengers or crew members on the aircraft were injured. However, a truck driver on the New Jersey Turnpike sustained minor injuries from shattered glass when debris from a struck light pole hit his vehicle.
What caused the aircraft to fly so low?
The NTSB’s preliminary report indicates that the aircraft’s airspeed decayed during a gusty approach, leading to a low glide path. The first officer warned the captain that they were “slow and a little low.” The investigation is still ongoing to determine the official probable cause.
What is the current status of the investigation?
The NTSB has released its preliminary report (DCA26FA194) and officially classified the event as an accident due to substantial aircraft damage. A final report detailing the probable cause will be released at a later date.
Photo Credit: NTSB
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