Property talk:P1755

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Aviation Safety Network accident ID
identifier for an accident description per the Aviation Safety Network's database

Description	Accident description ID per the Aviation Safety Network's database
Applicable "stated in" value	Aviation Safety Network accident description (Q19356096)
Data type	External identifier
Domain	According to this template: aviation accident (Q744913) According to statements in the property: aircraft crash (Q3002150), aviation accident (Q744913), aircraft hijacking (Q898712), aviation incident (Q3149875) or experiment (Q101965) When possible, data should only be stored as statements
Allowed values	\d{8}-\d{1,2}
Example	TransAsia Airways Flight 235 (Q18951344) → 20150204-0 Korean Air Lines Flight 007 crash (Q18180) → 19830901-0 no label (Q79030495) → 32799
Source	https://aviation-safety.net/database/
Formatter URL	https://aviation-safety.net/database/record.php?id=$1
Tracking: usage	Category:Pages using Wikidata property P1755 (Q56250823)
See also	Aviation Safety Network Wikibase Occurrence (P1760)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Database reports/Constraint violations/P1755 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,890 Main statement 1,877 99.3% of uses Qualifier 3 0.2% of uses Reference 10 0.5% of uses
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Format “\d{8}-\d{1,2}”: value must be formatted using this pattern (PCRE syntax). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1755#Format, hourly updated report, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1755#Unique value, SPARQL (every item), SPARQL (by value)

Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303). Known exceptions: 1976 Zagreb mid-air collision (Q768914), Charkhi Dadri mid-air collision (Q118373), Überlingen mid-air collision (Q163107), 1990 Guangzhou Baiyun airport collisions (Q800043), 1960 New York air disaster (Q2078823), Linate Airport disaster (Q2292497), 1979 Dniprodzerzhynsk mid-air collision (Q2375128), 2004 Russian aircraft bombings (Q2375246), 1973 Nantes Mid-Air Collision (Q2983513), 2009 Makhachkala Il-76 collision (Q4055777), 1950 Air France multiple Douglas DC-4 accidents (Q4566775), 1965 Carmel mid-air collision (Q4571879), Madrid Runway Disaster (Q6728635), Wayne County Airport runway collision (Q7059916), 1972 Lake Winnebago mid-air collision (Q14714402), 1969 Yukhnov mid-air collision (Q16702239)
List of violations of this constraint: Database reports/Constraint violations/P1755#Single value, SPARQL

Type “aircraft crash (Q3002150), aviation accident (Q744913), aircraft hijacking (Q898712), aviation incident (Q3149875), experiment (Q101965)”: item must contain property “instance of (P31)” with classes “aircraft crash (Q3002150), aviation accident (Q744913), aircraft hijacking (Q898712), aviation incident (Q3149875), experiment (Q101965)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P1755#Type Q3002150, Q744913, Q898712, Q3149875, Q101965, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1755#Entity types

Scope is as main value (Q54828448), as reference (Q54828450): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P1755#Scope, SPARQL

This property is being used by: hy:Կաղապար:Տեղեկաքարտ Ավիավթար fi:Malline:ASN onnettomuus Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)