US Navy aviation and shipboard mishaps reach 11-year highs
The US Navy recorded its highest annual totals of serious aviation and shipboard mishaps in at least 11 years during fiscal 2026, according to newly examined statistics from the Naval Safety Command.
The service reported 16 Class A aviation mishaps and 11 afloat mishaps during the financial year ending 30 September, both the highest figures in the command's published FY2016-FY2026 series.
The increases occurred despite a decline in overall on-duty fatalities, highlighting the distinction between accidents involving loss of life and those classified as serious because of aircraft destruction, permanent disability or extensive equipment damage.
The figures raise questions about operational safety and equipment losses, although the statistics alone do not establish whether maintenance standards, personnel shortages or operational demands contributed to the increase.
Aviation mishaps rise above historical levels
The Navy's 16 Class A aviation mishaps compared with 12 in FY2025 and a ten-year annual average of 10.7.
The aviation mishap rate increased to 2.23 per 100,000 flight hours, from 1.60 a year earlier. The ten-year average was 1.31.
The FY2026 total consisted of 11 manned-flight mishaps, three aviation-ground mishaps and two unmanned-aircraft mishaps.
Manned-flight mishaps remained unchanged at 11, although their rate rose slightly to 1.53 per 100,000 flight hours.
Aviation-ground mishaps increased from one to three, while both unmanned incidents involved MQ-4C Triton surveillance aircraft.
One Triton crashed in April 2026. The other was damaged during maintenance in December 2025.
The year's most significant recorded aviation events included a collision between two EA-18G Growlers at Mountain Home Air Force Base in Idaho on 17 May.
Both aircraft were destroyed, but all four aircrew ejected safely.
Other incidents included an MH-60S helicopter crash on 1 July that killed one person, and an EA-18G landing mishap on 28 September in which both aircrew ejected while flight-deck personnel sustained injuries.
These cases illustrate how Class A events can involve serious equipment losses without necessarily resulting in fatalities.
Shipboard mishaps also reach series high
The Navy's afloat Class A mishaps increased to 11 from seven in FY2025, almost double the ten-year annual average of 5.8.
The corresponding rate rose to 3.73 per 100 ships per year, compared with 2.37 at the end of the previous financial year.
Eight incidents involved surface ships, a new high in the published series. Another involved a submarine and two were associated with Military Sealift Command vessels.
The report records two separate cases of sailors falling overboard while ships were underway, on 7 February and 25 June. Both were presumed dead.
Other incidents included a collision between a commissioned Navy ship and a Military Sealift Command vessel in February, an onboard fire in March and damage during maintenance at Ingalls Shipbuilding in Mississippi in April.
A submarine engineering casualty was also recorded in March, without reported crew injuries.
These incidents represent different types of operational and maintenance risk. The report does not identify a common cause linking them.
Serious mishaps increase while fatalities fall
Across all on-duty categories, the Navy recorded 30 Class A mishaps in FY2026, up from 27 in the previous year.
That matched the FY2022 high in the 11-year series and exceeded the ten-year annual average of 24.
Yet the number of on-duty fatalities declined from eight to five, compared with a ten-year average of 9.2.
The command separately noted one government civilian fatality not shown in its on-duty fatalities chart.
On-duty shore mishaps also declined, from eight to two.
The contrasting figures demonstrate why the Class A designation should not be interpreted as a measure of fatal accidents alone.
Under Naval Safety Command rules, a mishap can qualify as Class A because of property damage of at least US$2.5 million, the destruction of an aircraft, a fatality or permanent total disability.
What the figures reveal about readiness
Aviation and shipboard accident rates matter because damaged aircraft and vessels can require costly repairs, consume maintenance capacity and temporarily reduce equipment availability.
However, the FY2026 report is a safety dataset, not an assessment of fleet readiness.
It does not establish the causes of the increased mishap rates, the total repair costs or the duration for which affected equipment was unavailable.
Nor should the separate Marine Corps figures be combined with the Navy totals. The report records six Marine Corps Class A aviation mishaps in FY2026, compared with five the previous year.
The Navy's latest statistics nevertheless provide a clear warning indicator: serious incidents involving aircraft and vessels have become more frequent within the period covered by the published data.
Further investigation into the causes, repair consequences and operational effects will be necessary to determine whether the higher mishap rates reflect broader pressures on the service.
For now, the record totals justify scrutiny, but not a conclusion that US naval readiness has deteriorated.
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