Aviation·ActiveEscalating
Air India Faces Criticism for Pressing Crash Victim Families to Waive Claims Prematurely
🇮🇳 India· Country10 Jun
3 reportsCAT AIPCAVCASLH+1
LowAI Refreshed
ClosedMedium impactAI Generated
FAA Proposed Airworthiness Directive Targets PW4000 Sensor Flaw Linked to Tailpipe Fires and In-Flight Shutdowns
Occurred 22 May 2026·Detected 22 May 2026·
🇺🇸 United States (FAA regulatory action, Washington D.C. / nationwide fleet)1 reportEnded 29 May 2026
AviationAviation
The FAA has issued a proposed airworthiness directive requiring replacement of pressure burner sensors on several Pratt & Whitney PW4000 turbofan variants following multiple incidents of tailpipe fires, loss of thrust control, and in-flight engine shutdowns. The directive would affect 210 US-registered aircraft including Boeing 747-400s, 767s, and MD-11 Freighters. Sensor deterioration causes erroneous readings leading to incorrect fuel commands. Pratt & Whitney has already issued service bulletins aligned with the proposed rule, and no groundings are anticipated.
AI-generated from linked source reports. See our correction policy.
Impact verdict
Medium impact. The directive affects 210 US-registered aircraft requiring mandated sensor replacements at cost to operators, with prior incidents of in-flight shutdowns and tailpipe fires representing hull and liability exposure; however, no groundings are required and the remediation is structured around scheduled maintenance cycles, limiting acute loss potential.
View assessment methodologyHow we grade what we know -- Known · Reported · Uncertain. Methodology →
Intelligence ledger
Each line expands in place to its underlying sourced claim.
Known8 lines
FAA issued a proposed airworthiness directive on 22 May 2026 targeting PW4000 turbofan pressure burner sensors▾
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No separate sourced-claim record is available for this line yet.
Multiple reports of tailpipe fire, loss of thrust control, and engine in-flight shutdown have occurred due to sensor deterioration▾
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210 US-registered jets are affected, including Boeing 747-400s, 767s, and MD-11 Freighters▾
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The proposed AD would require sensor replacement or repair every 30,000 flight hours or 10 years▾
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Sensors already exceeding limits must be repaired or replaced within 10-30 months▾
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Pratt & Whitney has already issued service bulletins aligned with the FAA proposal▾
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No groundings are required; inspections will occur during scheduled overhauls▾
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FAA is accepting public comments for 45 days▾
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Reported1 line
Sensor deterioration leads to incorrect fuel commands via erroneous sensor readings within electronic engine control modules▾
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Uncertain3 lines
Specific details of individual incidents have not been disclosed by the FAA▾
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No separate sourced-claim record is available for this line yet.
The exact number of incidents that prompted the directive is not revealed▾
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No separate sourced-claim record is available for this line yet.
Whether any incidents resulted in hull damage, injuries, or losses is not stated▾
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No separate sourced-claim record is available for this line yet.
Geographic Zone Matches
1 active match
- TRIA Certified AreasRule-basedConfidence 100%
Geographic zone matches are RiskEvents spatial/analytical indicators, not coverage determinations or Lloyd's official classifications.
Affected countries
🇺🇸 United States
Timeline
Status Change2 Jun 2026, 13:05
Lifecycle changed
monitoring → closed
Closure2 Jun 2026, 13:05
Event Closed
auto_closed_monitoring_timeout
Status Change29 May 2026, 05:30
Status changed to monitoring
Auto-transitioned: no updates for 6 hours
active → monitoring
Status Change28 May 2026, 22:36
Status changed to active
remediation: existing authoritative signal
signal → active
Initial Detection22 May 2026, 16:54
Initial Detection
The FAA has issued a proposed airworthiness directive requiring replacement of pressure burner sensors on several Pratt & Whitney PW4000 turbofan variants following multiple incidents of tailpipe fires, loss of thrust control, and in-flight engine shutdowns. The directive would affect 210 US-registered aircraft including Boeing 747-400s, 767s, and MD-11 Freighters. Sensor deterioration causes erroneous readings leading to incorrect fuel commands. Pratt & Whitney has already issued service bulletins aligned with the proposed rule, and no groundings are anticipated.
"This proposed AD was prompted by multiple reports of tailpipe fire, loss of thrust control and engine in-flight shutdown due to undetected deterioration of pressure burner sensors," says the FAA's proposal, released on 22 May.
Source: FlightGlobal (Trade Media) · View source
Lloyd's classifications
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