- Manufacturer (registry)
- P & W
- Model
- R-985-39A
- Registry code
- 51658
- Installed in
- 2 registered aircraft
- Type
- Turbo-prop
- Power
- 450 hp
Model codes come from the FAA registry’s reference file.
On this page
Airworthiness directives that may apply · 0
ADs whose products match this engine model. Each AD’s applicability may narrow it by serial number, part number or configuration.
No ADs matched this model
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 engine_model_code IN ('51658')
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 engine_model_code IN ('51658')
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
No NTSB investigations matched to aircraft with this engine 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 with this engine modelMatched through the registry by N-number, so foreign aircraft and some older reports aren’t counted.
Service difficulty reports · 5
SDR CA150826006Retainer · damaged(CAN) DURING MAINTENANCE THERE WAS EVIDENCE THE UPPER TANK COVER GASKETS P/N C2PT529-27 WERE LEAKING. THIS AIRCRAFT HAS MOD 2/1376 INSTALLED TO INTRODUCE RUBBER FUEL TANK LINERS. THE GASKETS WERE REPLACED AND THE TANK FILLED WITH FUEL. THE TANK STILL LEAKED BESDR CA130102005Support Fitting · cracked(CAN) THIS RT FLOAT MODEL EDO 679-4930, SN: TB492, FOUND TO HAVE THE AFT SPREADER BAR SUPPORT FITTING, PN: 901-23060-1 DAMAGE, CRACKED. APPEARING TO BE THE RESULT OF INTER-GRANULAR CORROSION. THIS CRACKED FITTING, PN: 901-23060-1, WAS REPLACED WITH A NEW UNISDR CA121203019Bar · cracked(CAN) WHILE CARRYING OUT A ANNUAL INSPECTION ON THE ACFT, THE AFT FLOAT SPREADER BAR PN 58-C-067-2 WAS FOUND TO HAVE A CRACK 4" IN LENGTH LOCATED ON THE LT SIDE AT THE L/E SKIN AREA WHICH RAN THROUGH THE PULLEY BRACKET FOR THE WATER RUDDER RETRACT CABLE. THESDR CA060529008Vent · wrong partTHIS FRONT TANK FUEL VENT TUBE FOUND TO HAVE DISCONNECTED FROM THE RUBBER BLADDER. THE HOSE CLAMP WAS TIGHT BUT THE TUBE WAS ABLE TO WORK ITSELF FROM THE BLADDER CAUSING FUEL LEAKAGE AND GASES TO ESCAPE FROM THE BLADDER. IN INVESTIGATING THIS OCCURRENCE IT WSDR CA060524002Wheel · corrodedTHIS PART WAS INSTALLED MAY 31/04 IN ACCORDANCE WITH VIKING AIR GROSS WEIGHT INSTRUCTION. IT WAS NOTICED THAT EARLY CORROSION HAD BEGUN AT THE WHEEL GEAR ATTACHMENT HOLE. THE CORROSION WAS DEEP AND THE PART WAS REPLACED WITH A NEW UNIT. POSSIBLE CAUSE FOR T
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 engine_model_key = 'R98539A' 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 engine_model_key = 'R98539A' 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.