Lockheed 18

Aircraft model · Fixed wing multi engine · Airplane · registry code 5261602

Manufacturer (registry)
LOCKHEED
Model
18
Registry code
5261602
Registered
2 aircraft
Type
Fixed wing multi engine
Engines
2 · Reciprocating
Seats
17
Weight class
12,500 to 19,999 lb
Cruise speed
172 mph
Certification
Type certificated
Data sheet
TCDSA-723
Holder
Lockheed Martin Aeronautics Company

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

On this page

Aircraft by year built · 37

1940Registered nowDeregistered2026
Aircraft by the year they were built: 37 aircraft
19405
19412
19424
19437
19452
19501
19521
19531
19541
19553
19563
19572
19591
19611
19631
19811
19871

Airworthiness directives that may apply · 24

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

1961In forceSuperseded2026
ADs by the year they took effect: 11 ADs
19611
19631
19641
19661
19771
19931
19981
19991
20051
20231
20261
See all 24 ADs
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('5261602'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Registered aircraft · 2

Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('5261602')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

STCs approved for this model · 280

See all 280 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE model_key = '18')
  ORDER BY s.status = 'Current' DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 12

Aircraft matched to this model through the registry, by N-number and event date.

First occurrence, 1982 to 2007

Of 2 cases with NTSB’s older coding, defined in its coding manual.

NTSB ATL83FA237Accident · 2 fatalField investigationFinal reportLockheed L-18 · Millhaven, GAThe acft collided with trees during an attempted off arpt landing at night for marijuana unloading. The acft was being followed by a u.s customs helicopter, the occupants of this helicopter said the acft had made one missed approach and during the go-around…Jun 23, 1983 · N333FB · DestroyedNTSB ATL83FA021Accident · 3 fatalField investigationFinal reportLockheed 18 · Kosciusko, MSThe acft was observed without lights making repeated low altitude passes over a pipeline right-of-way at night. The acftwas equipped with an internal aux fuel tank, non-standard internal plumbing, a large lever-operated petroleum products pump, an inflatable…Oct 18, 1982 · N1040G · DestroyedNTSB LAX80DJA08Accident · Serious injuriesClosedLockheed 18 · Palmyra Island, HIJan 5, 1980 · N163R · Substantial damageNTSB FTW79FRD27Accident · No injuriesClosedLockheed 18 · Melville, LAMay 7, 1979 · N513V · Substantial damageNTSB MIA79FKG31Accident · Serious injuriesClosedLockheed L-18 · Lincolton, GAApr 12, 1979 · N250W · DestroyedNTSB FTW77FA061Accident · Minor injuriesClosedLockheed L-18 · Austin, TXJun 10, 1977 · N333FB · Substantial damageNTSB OAK76DJY01Accident · No injuriesClosedLockheed L-18 · Puerto Princes, RPJul 4, 1975 · N100DK · Substantial damageNTSB IAD75AI062Accident · 2 fatalClosedLockheed 18 · Rockwood, TNMay 29, 1975 · N75G · DestroyedNTSB MIA73AM029Accident · No injuriesClosedLockheed 18 · Boca Raton, FLApr 23, 1973 · N7611 · Substantial damageNTSB MIA72AM122Accident · 8 fatalClosedLockheed MK-1 · Indiantown, FLMay 12, 1972 · N211L · DestroyedNTSB FTW72AF038Accident · No injuriesClosedLockheed 18 · Hobart, OKDec 22, 1971 · N10P · Substantial damageNTSB MIA65A0090Accident · 2 fatalClosedLoockheed L-18 · Miami, FLMar 5, 1965 · N300N · Destroyed
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('5261602')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 13

Matched to this model through the registry, by N-number and event date.

Incident 19841206069459ILkheed 18LKHEED · Lubbock, TXDuring climb out oil noticed on engine cowling. Teflon friction reduction strip loose PN52564949 on prop blade.Dec 6, 1984 · N442DAccident 19830623026449ALkheed 18LKHEED · Millhaven, GAStruck trees attempting a night landing on a lighted improvised strip. Illegal marijuana cargo. Revoked license.Jun 23, 1983 · N333FB · Destroyed · 1 fatalAccident 19821028058089ALkheed 18LKHEED · Kosciusko, MSAircraft crashed at night in rural area. Local residents revealed that aircraft had made several low passes.Oct 28, 1982 · N1040G · Destroyed · 1 fatalIncident 19810214019369ILkheed 18LKHEED · Ft Lauderdale, FLRight main gear collapsed on touch down.Feb 14, 1981 · N333FB · Minor damageAccident 19800105000749ALkheed 18LEARSTAR · Palmyra Island, HIBounced on landing, verred off centerline, wing hit trees. Skidded sideways into a tree. Water on runway.Jan 5, 1980 · N163R · Substantial damageAccident 19790507013939ALkheed 18LKHEED · Melville, LAAircraft crashed short of runway. Left engine quit. Left fuel gauge indicated 20 gallons but was empty.May 7, 1979 · N513V · Substantial damageAccident 19790412010169ALkheed 18LKHEED · Lincolnton, GAAircraft aborted takeoff, went into trees. 2000 pounds marijuana onboard. Pilot unknown.Apr 12, 1979 · N250W · DestroyedIncident 19790408012059ILkheed 18LKHEED · Taft, CAEnd right cell of jumpers multi cell canopy did not inflate. Landed in aqueduct for easy landing. Expired.Apr 8, 1979 · N117G · 1 fatalIncident 19780517035069IPiper L18C · Dublin, GAAfter several high speed taxies, aircraft ground looped.May 17, 1978 · N33604 · Substantial damageAccident 19771221042919ALkheed 18LEARSTAR · FLDec 21, 1977 · N333FB · Substantial damageAccident 19770610033249ALkheed 18LKHEED · Austin, TXGear collided with hard surface edge of taxiwayJun 10, 1977 · N333FB · Substantial damageAccident 19750704023959ALkheed 18LKHEED · Puerto PrincesInvest under jurisdiction of govt of phillipinesJul 4, 1975 · N100DK · Substantial damageAccident 19750529021389ALkheed 18LKHEED · Rockwood, TNHit trees abt 1/4MI frm arpt gr up,flaps dwn,ldg lgt on. Marijuana aboard. Packing cases nr rwy.May 29, 1975 · N75G · Destroyed
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('5261602')
  ORDER BY event_date DESC, report_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Service difficulty reports · 1

Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '18'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
  WHERE m.match_key = '18' AND m.code NOT IN ('5261602')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.