British Airways Flight 9 volcanic ash encounter
E840618
The British Airways Flight 9 volcanic ash encounter was a 1982 incident in which a Boeing 747 flying over Indonesia lost power in all four engines after flying through Mount Galunggung’s ash cloud, but successfully glided and restarted its engines for a safe landing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| British Airways Flight 9 volcanic ash encounter canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10103274 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Airways Flight 9 volcanic ash encounter Context triple: [Galunggung, notableIncident, British Airways Flight 9 volcanic ash encounter]
-
A.
Air France Flight 447
Air France Flight 447 was a 2009 transatlantic passenger flight from Rio de Janeiro to Paris that crashed into the Atlantic Ocean, killing all 228 people on board and prompting major changes in aviation safety and pilot training.
-
B.
Air France Flight 4590
Air France Flight 4590 was the Concorde supersonic passenger jet that crashed shortly after takeoff from Paris in 2000, killing all on board and effectively leading to the end of Concorde’s commercial service.
-
C.
Pegasus Airlines Flight 8622
Pegasus Airlines Flight 8622 was a domestic passenger flight in Turkey that became widely known after its aircraft skidded off the runway at Trabzon Airport in 2018 and came to rest on a cliff above the sea, without any fatalities.
-
D.
Ethiopian Airlines Flight 302
Ethiopian Airlines Flight 302 was a scheduled passenger flight that crashed shortly after takeoff from Addis Ababa in March 2019, killing all 157 people on board and leading to the worldwide grounding of the Boeing 737 MAX fleet.
-
E.
US Airways Flight 1549
US Airways Flight 1549 was the 2009 passenger flight that famously ditched in the Hudson River after a bird strike disabled both engines, with all 155 people on board surviving.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: British Airways Flight 9 volcanic ash encounter Target entity description: The British Airways Flight 9 volcanic ash encounter was a 1982 incident in which a Boeing 747 flying over Indonesia lost power in all four engines after flying through Mount Galunggung’s ash cloud, but successfully glided and restarted its engines for a safe landing.
-
A.
Air France Flight 447
Air France Flight 447 was a 2009 transatlantic passenger flight from Rio de Janeiro to Paris that crashed into the Atlantic Ocean, killing all 228 people on board and prompting major changes in aviation safety and pilot training.
-
B.
Air France Flight 4590
Air France Flight 4590 was the Concorde supersonic passenger jet that crashed shortly after takeoff from Paris in 2000, killing all on board and effectively leading to the end of Concorde’s commercial service.
-
C.
Pegasus Airlines Flight 8622
Pegasus Airlines Flight 8622 was a domestic passenger flight in Turkey that became widely known after its aircraft skidded off the runway at Trabzon Airport in 2018 and came to rest on a cliff above the sea, without any fatalities.
-
D.
Ethiopian Airlines Flight 302
Ethiopian Airlines Flight 302 was a scheduled passenger flight that crashed shortly after takeoff from Addis Ababa in March 2019, killing all 157 people on board and leading to the worldwide grounding of the Boeing 737 MAX fleet.
-
E.
US Airways Flight 1549
US Airways Flight 1549 was the 2009 passenger flight that famously ditched in the Hudson River after a bird strike disabled both engines, with all 155 people on board surviving.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
aircraft emergency
ⓘ
aviation incident ⓘ |
| aircraft | Boeing 747-236B NERFINISHED ⓘ |
| aircraftDamage |
engine damage from ash ingestion
ⓘ
severe erosion of windscreen and leading edges ⓘ |
| aircraftName | City of Edinburgh NERFINISHED ⓘ |
| aircraftRegistration | G-BDXH NERFINISHED ⓘ |
| airline | British Airways NERFINISHED ⓘ |
| callsign | Speedbird 9 NERFINISHED ⓘ |
| captain | Eric Moody NERFINISHED ⓘ |
| causeCategory | volcanic ash encounter ⓘ |
| causeDetail | ingestion of volcanic ash into all four engines ⓘ |
| countryOfIncident | Indonesia NERFINISHED ⓘ |
| crewAction |
attempted multiple engine restarts
ⓘ
glided the aircraft without engine power ⓘ |
| cruiseAltitude | approximately 37,000 feet ⓘ |
| date | 1982-06-24 ⓘ |
| destinationAirport | Auckland Airport NERFINISHED ⓘ |
| diversionAirport | Jakarta Halim Perdanakusuma Airport NERFINISHED ⓘ |
| engineManufacturer | Rolls-Royce NERFINISHED ⓘ |
| engineStatus | flameout of all four engines ⓘ |
| engineType | Rolls-Royce RB211 NERFINISHED ⓘ |
| fatalities | 0 ⓘ |
| firstOfficer | Roger Greaves NERFINISHED ⓘ |
| flightEngineer | Barry Townley-Freeman NERFINISHED ⓘ |
| flightNumber |
BA9
NERFINISHED
ⓘ
British Airways Flight 9 NERFINISHED ⓘ |
| hullLoss | no ⓘ |
| landingAirport | Jakarta Halim Perdanakusuma Airport NERFINISHED ⓘ |
| location | airspace south of Java ⓘ |
| mediaName | Jakarta incident of British Airways Flight 9 ⓘ |
| nearVolcano | Mount Galunggung NERFINISHED ⓘ |
| notableFeature |
extended power-off glide by a Boeing 747
ⓘ
temporary loss of all four engines in flight ⓘ |
| numberOfEngines | 4 ⓘ |
| numberOfOccupants | 248 ⓘ |
| numberOfPassengers | 248 ⓘ |
| originAirport | London Heathrow Airport NERFINISHED ⓘ |
| outcome |
safe landing
ⓘ
successful restart of all four engines ⓘ |
| passengerInjuries | minor ⓘ |
| phaseOfFlight | cruise ⓘ |
| routeRegion | Europe–Asia–Oceania NERFINISHED ⓘ |
| safetyImpact |
contributed to development of volcanic ash avoidance procedures
ⓘ
raised global awareness of volcanic ash hazards to aviation ⓘ |
| stopoverAirport |
Bombay
NERFINISHED
ⓘ
Kuala Lumpur NERFINISHED ⓘ Madras NERFINISHED ⓘ |
| year | 1982 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: British Airways Flight 9 volcanic ash encounter Description of subject: The British Airways Flight 9 volcanic ash encounter was a 1982 incident in which a Boeing 747 flying over Indonesia lost power in all four engines after flying through Mount Galunggung’s ash cloud, but successfully glided and restarted its engines for a safe landing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Galunggung