- Manufacturer (registry)
- LOCKHEED
- Model
- 18-56
- Registry code
- 5261642
- Registered
- 10 aircraft
- Type
- Fixed wing multi engine
- Engines
- 2 · Reciprocating
- Seats
- 17
- Weight class
- 12,500 to 19,999 lb
- Cruise speed
- 184 mph
- Certification
- Type certificated
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 · 108
| 1930 | 1 |
|---|---|
| 1940 | 3 |
| 1941 | 6 |
| 1942 | 21 |
| 1943 | 40 |
| 1944 | 1 |
| 1945 | 3 |
| 1946 | 5 |
| 1949 | 3 |
| 1950 | 3 |
| 1951 | 3 |
| 1952 | 4 |
| 1953 | 1 |
| 1955 | 4 |
| 1956 | 6 |
| 1957 | 1 |
| 1958 | 2 |
| 1959 | 1 |
Airworthiness directives that may apply · 0
ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.
No ADs matched this model
Registered aircraft · 10
N177LLone Star Flight Museum · Houston, TXN1940SGlover William Scott · Mount Pleasant, TXN21GDonovan Patrick · Bellingham, WAN250DGlover William S · Mount Pleasant, TXN250TSSchultz Philip W · Lancaster, CAN31GHouston Aeronautical Heritage Society Inc · Houston, TXN41CWSanders Dennis R · Ione, CAN631LSHill Lawrence E · Marion, MTN781GTupelo Aeronautics Inc · Tupelo, MSN96334Iat Ltd · Manakin Sabot, VA
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 ('5261642')
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.
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 ('5261642')
ORDER BY n_numberRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB investigations · 49
Aircraft matched to this model through the registry, by N-number and event date.
Of 5 cases with NTSB’s older coding, defined in its coding manual.
NTSB FTW05LA003Accident · Minor injuriesLimited investigationFinal reportLockheed 18-56 · Midland, TXThe pilot's failure to maintain directional control during takeoff. Contributing factors were the choice of runway used and the prevailing tailwind.NTSB FTW88FA035Accident · Serious injuriesField investigationFinal reportLockheed 250 TRI-GEAR · Dallas, TXThe right engine of the aircraft failed three times in flight. After the last failure near the middle marker the pilot feathered the propeller. The aircraft collided with power lines and the ground about 400 yards short of runway 31 at the redbird airport.…NTSB MKC86FA179Accident · 2 fatalField investigationFinal reportLockheed 18-56 (Howard 250) · Texarkana, ARWhile apchg for a lndg, the acft pitched up, rolled inverted & impacted the terrain to the left of the rwy. No preimpactpart failure/malfunction was fnd; however, an inv revealed the acft had been loaded with the center-of-gravity (CG) wellbehind the aft…
See all 49 investigationsQuery 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 ('5261642')
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.
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 ('5261642')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
FAA incident reports · 35
Matched to this model through the registry, by N-number and event date.
Accident 20041003022579ALkheed 1856 · Midland, TX(-23) On October 3, 2004, at approximately 1624 CDT, N6371C, a Lockheed 18-56, attempted take off on runway 34 at Midland International Airport (maf), Midland, Texas. Wind was 140 degrees at 09 knots. The aircraft veered off the left side of the runway and…Incident 19981220033579ILkheed 1856LEARSTAR · Winters/Davis/W, CAAcft landed gear up. (-5)on returning to home airport aircraft lost hydraulic pressure on main system, pilot tried to put wheels down with the emergency system. The emergency did not work, this caused the pilot to make a wheels up landing in the grass between…Accident 19871207082869ALkheed 18LKHEED · Dallas, TXRight engine quit and was feathered during approach. Left engine quit on final. Crashed short. Was out of fuel.
See all 35 incident reportsQuery 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 ('5261642')
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.
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 ('5261642')
ORDER BY event_date DESC, report_number DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
Service difficulty reports · 3
SDR 2002FA0000908Cable · misroutedBAGGAGE DOOR MAKES A VIBRATION NOISE WHEN DOOR IS OPENED APPROX .5000 TO .7500 OPEN POSITION. DOOR APPEARS TO BE CHAFING JUST BEFORE CLOSING. FOUND AFT CABLE NOT ROUTED PROPERLY GOING TO BAGGAGE DOOR, ROUTED CABLE OPS CHECK COMPLIED WITH, CHECKED OK.SDR 2002FA0000907Window · crackedNR 3 RIGHT CABIN WINDOW INNER PANE IS CRACKED. REMOVED AND REPLACED CABIN WINDOW. LEAK CHECK GOOD.SDR 2002FA0000906Lock · chafedFORWARD EXT. ACCESS PANEL LOCK ASSEMBLY CHAFES DOOR LATCH WHEN PANEL IS IN THE OPEN POSITION. REMOVED MATERIAL FROM ARM OF LOCK ASSY TO PROVIDE CLEARANCE, OPS CHECK COMPLETED NO CHAFING NOTED PER B/P 1159B50000. COMPLIED WITH ENGINEERS DISPOSITION PER SR PH
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 = '1856' 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.
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 = '1856' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.