Boeing 777 — Safety Profile
Twin-engine widebody · First flight: 12 June 1994 · EIS: 7 June 1995 (United Airlines) · Updated 20 May 2026
The Boeing 777 family is the world's largest twin-engine widebody by deliveries and the best-selling widebody airliner. The family comprises 777-200, 777-200ER, 777-200LR, 777-300, 777-300ER, and the 777F freighter. As of April 2026, around 1,787 aircraft have been delivered against 2,485 orders, and approximately 1,700+ are in service. Through May 2024 the type recorded 31 aviation accidents and incidents, including 8 hull losses (5 of them in operational service). The 777X (next-generation 777-9 and 777-8) remains in certification flight test, with first delivery targeted for 2026 after multi-year delay; flight testing resumed in January 2025 following an August 2024 grounding to address engine-mount component cracking found on the test fleet.
Type overview
The 777 is a long-range, wide-body, twin-engine aircraft. It is the largest twinjet by physical dimensions in service (overtaken by the 777-9 once that variant enters service) and currently the best-selling widebody by deliveries. Powerplant options vary by variant:
- →777-200 / -200ER — original variants; Rolls-Royce Trent 800, GE90, PW4000
- →777-200LR — ultra-long range; GE90-110B / -115B; remains in selected long-haul service
- →777-300 — stretched original; Trent 800, PW4000, GE90
- →777-300ER — best-selling variant; GE90-115B; the long-haul backbone of many flag carriers
- →777F — freighter; GE90-110B1; the world's most-operated long-range main-deck freighter
- →777-8 / 777-9 (777X) — next generation; GE9X; in certification flight test 2024-2026
Safety record — notable events
A 777-200ER lost both engines' thrust response on short final and undershot the runway. AAIB UK final report identified ice crystals in the fuel-oil heat exchanger restricting fuel flow on the Trent 800 engines. No fatalities; 47 injuries. EASA and FAA ADs mandated FOHE redesign on Rolls-Royce-powered 777s.
Often referenced as "BR006" — this is the China Airlines Boeing 777-300ER reference; please consult AAIB/NTSB direct for accurate references.
A 777-200ER struck the seawall short of runway 28L at SFO on a visual approach in clear weather. Three fatalities (two on impact; one post-impact). NTSB final report cited mismanaged-approach factors and crew interaction with the autothrottle system; recommendations on flight-crew automation training and survivability of the post-impact fire environment followed.
Two Malaysia Airlines 777-200ER events in 2014: MH370 (8 March 2014) disappeared from radar over the southern Indian Ocean; the official investigation by Malaysia (with international participation) was concluded without a definitive cause and the main wreckage has not been recovered. MH17 (17 July 2014) was lost in flight over eastern Ukraine; the Dutch Safety Board (DSB) led the investigation under ICAO Annex 13. Both events are extensively documented in their respective official investigation reports.
Note: AF66 was an Airbus A380, not a 777. The 777-equivalent engine event for Air France was a separate occurrence; consult BEA for type-specific references.
A 777-200 with Pratt & Whitney PW4077 engines suffered an uncontained engine failure shortly after takeoff from Denver (DEN). Debris fell over the Broomfield, Colorado area; no occupant or ground fatalities. NTSB cited high-cycle fatigue in a fan blade. FAA grounded PW4000-112-powered 777s pending inspection regime; the fleet returned to service later.
During routine post-flight inspection in Hawaii, Boeing found damage to a structural link between engine and wing on a 777-9 test aircraft. Boeing grounded the 777X test fleet; cracks were found on additional test aircraft in the same component. Flight testing resumed on 16 January 2025 after the issue was characterised and addressed.
Through May 2024, the 777 type had been involved in 31 accidents and incidents with 8 hull losses (542 total fatalities including 3 ground casualties). On a per-departure basis the 777 is widely cited as one of the safest large commercial types in service.
Major operators
The 777 is the long-haul backbone of most major flag carriers. Representative operators:
| Operator | Region | Notable |
|---|---|---|
| Emirates | UAE | World's largest 777-300ER operator |
| Qatar Airways | Qatar | -300ER passenger + 777F freighter |
| United Airlines | USA | -200 / -200ER / -300ER mix |
| Air France-KLM | France / Netherlands | -300ER long-haul |
| Cathay Pacific | Hong Kong | Largest -300ER fleet alongside A350 |
| FedEx Express, UPS Airlines | USA | Largest 777F freighter fleets |
| Singapore Airlines | Singapore | -300ER + 777F |
| ANA, JAL, Korean Air, British Airways, Lufthansa Cargo, Etihad, Saudia, Turkish, EVA | Multi-region | Long-haul widebody backbone |
Certification status and recent ADs
- →March 2024 FAA AD — Fuel-tank ignition source: FAA issued an Airworthiness Directive on the 777 family concerning electrical bonding and wiring around fuel-tank components, citing the risk of an ignition source inside the fuel tank. The AD mandates inspections and corrective rework on affected serial-number ranges. EASA adopted equivalent action.
- →PW4000-112 fan-blade inspection AD (post-UA328): mandatory inspection and thermal-acoustic image (TAI) checks on fan blades; aircraft returned to service after compliance.
- →Trent 800 FOHE rework (post-BA38): redesigned fuel-oil heat exchanger and operating procedures.
- →777X certification: ongoing into 2026; Boeing CEO publicly acknowledged the programme is behind original schedule. First delivery now targeted for 2026, around six years late and more than USD 15 billion over original budget on company disclosures. Engine-mount component issue identified August 2024 was characterised and flight test resumed 16 January 2025.
- →ETOPS: the 777-200ER and -300ER are ETOPS 330-min certified — the basis for the type's dominance on transpacific and South Atlantic routes.
Recent 2024-2026 operational notes
The in-service 777 fleet continues to be the workhorse of long-haul widebody operations and the dominant main-deck freighter. The 2024 FAA fuel-tank AD has been progressing through scheduled-maintenance windows worldwide. The 777X certification delay has caused several customers (notably Emirates, Lufthansa, and Qatar Airways) to extend service life of in-service 777-300ERs or expand A350 / 787 commitments to bridge the delivery gap. Cargo operators continue to expand 777F orders given the programme delays on competing freighter platforms.
Sources
- NTSB — Final reports: Asiana 214 (2013), UA328 (2021)
- AAIB UK — Final report on BA38 (2008)
- Dutch Safety Board (DSB) — MH17 (2014) investigation
- Malaysia (ICAO Annex 13) — MH370 (2014) investigation, concluded without definitive cause
- FAA — March 2024 Airworthiness Directive on 777 fuel-tank ignition source; PW4000-112 fan-blade AD
- EASA — Equivalent and harmonised ADs
- Boeing — Delivery and 777X programme updates; CEO statements on 777-9 certification timing
- Flight Global, Aviation Week, Simple Flying — Operational reporting 2024-2026