Overall Trends
Total, fatal, and serious accidents in the selected range.
Premium research interface
The modern interface for aviation safety intelligence.
Search investigations, review source evidence, monitor watched reports, and trace long-term patterns from one calm, data-first workspace.
63k+
Reports indexed
1940-2026
Coverage
Recent
Last data refresh
Search everything
Fast key and full-text search with live filters, watches, and precise metadata.
Use quotes for exact phrase matches (for example "fuel selector valve").
Featured Report
Safety trends by operating rule
Track fatal and non-fatal accident patterns across Part 91, Part 135, and Part 121 operations.
Loading trend charts…
High-signal investigations
Major cases, deep-report coverage, and investigation media across decades of NTSB history.
Browse the aviation graph
Move quickly by aircraft, airport, operator, and time with indexes built for research, not wandering.
Last Data Update
By Decade
By Month
Aircraft Manufacturer
More manufacturersAirports
More airportsOperators
More operatorsAbout
Aviation safety reports, made easier to study
NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.
The goal is practical safety education: make it faster to find relevant investigations, compare similar events, review factual records, and understand the evidence behind probable-cause and preliminary reports.
The investigative work and source records belong to the National Transportation Safety Board and the published investigation record. This site is not affiliated with or endorsed by the NTSB.
FAQs
NTSB Report
May 25, 2017 · Sikorsky S76 · VT-CMM
Nilanga, IN
Overview
Report Status
Factual report
Event Type
Accident
Date
May 25, 2017
Injury Outcomes
No injuries (6 uninjured)
Location
Nilanga, IN
Aircraft
Sikorsky S76
Tail Number
VT-CMM
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR17WA132
On May 25, 2017, at 0625 Universal Coordinated Time, a Sikorsky S76, VT-CMM, was substantially damaged when it impacted the ground following a collision with powerlines near the Nilana Helipad, Nilanga, Maharashtra, India. The helicopter was operated under the pertinent regulations of the Government of India. The two pilots and four passengers were not injured.The investigation is under the jurisdiction of the Government of India. This report is for information purposes only and contains only information released by the Government of India. Further information pertaining to this accident may be obtained from: The Aircraft Accident Investigation Bureau Safdarjung Airport, New Delhi, India - 110003 Tel: 011-24658051 Fax: (91) 11 2469-3963 email: aaib.moca@nic.in
Full Narrative
On May 25, 2017, at 0625 Universal Coordinated Time, a Sikorsky S76, VT-CMM, was substantially damaged when it impacted the ground following a collision with powerlines near the Nilana Helipad, Nilanga, Maharashtra, India. The helicopter was operated under the pertinent regulations of the Government of India. The two pilots and four passengers were not injured.The investigation is under the jurisdiction of the Government of India. This report is for information purposes only and contains only information released by the Government of India. Further information pertaining to this accident may be obtained from: The Aircraft Accident Investigation Bureau Safdarjung Airport, New Delhi, India - 110003 Tel: 011-24658051 Fax: (91) 11 2469-3963 email: aaib.moca@nic.in
Flight
Event TypeAccident
Event Time06:25 UTC
Nearest Airport0nm
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSikorsky S76
Tail NumberVT-CMM
Aircraft CategoryHeli
DamageSubstantial
People & Injuries
Injury SummaryNo injuries (6 uninjured)
Fatal0
Serious0
Minor0
Uninjured6
Total6
Conditions
WindCalm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0