- Manufacturer (registry)
- LOCKHEED
- Model
- C-121C
- Registry code
- 5262118
- Registered
- 0 aircraft
- Type
- Fixed wing multi engine
- Engines
- 4 · Reciprocating
- Seats
- 112
- Weight class
- 20,000 lb and over
- Cruise speed
- 266 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
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 · 0
No aircraft currently registered with this model
NTSB investigations
No NTSB investigations matched to aircraft with this modelMatched through the registry by N-number, so foreign aircraft and some older cases aren’t counted.
FAA incident reports
No reports matched to aircraft of this modelMatched through the registry by N-number, so foreign aircraft and some older reports aren’t counted.
Service difficulty reports · 6
SDR AUS20010844Governor · faulty(AUS) NR 4 ENGINE GOVERNOR FAULTY.SDR AU010054Piston · broken(AUS) LANDING GEAR SELECTOR VALVE PISTONS (2OFF4) BROKEN ACROSS SHANK IN AN O-RING SEAL GROOVE. BROKEN PISTON JAMMED IN PORT.SDR AU981093Cover · cracked(AUS) ENGINE CYLINDER ROCKER COVER CRACKED AND LEAKING.SDR AU970700Guide · failed(AUS) NO2 ENGINE FRONT SUMP PLUG CONTAMINATED WITH A SMALL PIECE OF FERROUS MATERIAL - INVESTIGATION FOUND PIECE OF METAL HAD CHIPPED OFF NO2 CYLINDER INLET VALVE TAPPET GUIDESDR AU961050Valve Guide · worn(AUS) ENGINE CYLINDER EXHAUST VALVE GUIDE WORN AND LOOSE IN CYLINDER HEADSDR AU960183Cable · broken(AUS) NO3 ENGINE EMERGENCY SHUTOFF CABLE FAILED - SUSPECT CABLE FAILED AT A POINT WITHIN A PULLEY BLOCK WHERE THE CABLE HAD BEEN DAMAGED- NO CORROSION OR WEAR WAS EVIDENT
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 = 'C121C' 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 = 'C121C' 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.