# Service difficulty reports: N781LU A list on [N781LU](https://openairdocs.org/aircraft/N781LU.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR 2017FA0000204](https://openairdocs.org/sdr/2017FA0000204.md): Stop · stripped · May 25, 2017 · N781LU · Piper PA44180 · Propeller Hub Section > DURING INSPECTION, MAINTENANCE NOTED A LOW PITCH STOP TREADS WERE STRIPPED AND DAMAGED HUB THREADS AS WELL. THE PROPELLER WAS SENT OUT FOR REPAIR, - [SDR 2017FA0000205](https://openairdocs.org/sdr/2017FA0000205.md): Stop · stripped · Apr 19, 2017 · N781LU · Piper PA44180 · Propeller Hub Section > DURING SCHEDULED INSPECTION MAINTENANCE CREW DISCOVERED LOW PITCH STOP WAS STRIPPED REQUIRING REPLACEMENT. - [SDR 2017FA0000206](https://openairdocs.org/sdr/2017FA0000206.md): Stop · stripped · Feb 22, 2017 · N781LU · Piper PA44180 · Propeller Hub Section > DURING ROUTINE INSPECTION, MAINTENANCE FOUND LOW PITCH STOP STRIPPED. - [SDR 2017FA0000207](https://openairdocs.org/sdr/2017FA0000207.md): Stop · stripped · Nov 17, 2016 · N781LU · Piper PA44180 · Propeller Hub Section > DURING ROUTINE INSPECTION, MAINTENANCE FOUND PROPELLER LOW PITCH STOP STRIPPED. - [SDR 2016FA0000555](https://openairdocs.org/sdr/2016FA0000555.md): Cylinder · damaged · Oct 31, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > DURING SCHEDULED MAINTENANCE CYLINDER NR 2 FAILED A DIFFERENTIAL PRESSURE CYLINDER LEAK CHECK, 54/80. CYLINDER NR 2 WAS REMOVED AND REPLACED. VISUAL INSPECTION DISCOVERED A VISIBLE CRACK IN COMBUSTION CHAMBER. - [SDR 2016FA0000526](https://openairdocs.org/sdr/2016FA0000526.md): Pushrod · worn · Oct 19, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > DURING SECOND INSPECTION IAW SA-167 THE FOLLOWING ABNORMALITIES WERE FOUND. CYLINDER NR 3 EXHAUST PUSHROD, ROCKER ARM END, AND ROCKER ARM WERE ABNORMALLY WORN. ENGINE TOTAL TIME SINCE NEW: 1127.4 HOURS. - [SDR 2016FA0000466](https://openairdocs.org/sdr/2016FA0000466.md): Pushrod · worn · Oct 3, 2016 · N781LU · Piper PA44180 · Powerplant System > DURING INSPECTION OF THE RH ENGINE PUSHRODS, THE CYLINDER NR 3 EXHAUST PUSHROD WAS FOUND TO BE EXCESSIVELY WORN ON THE ROCKER ARM SWAGED END. ENGINE TOTAL TIME 1090.0.LYCOMING TECH REP TOOK PUSHROD BACK TO LYCOMING FOR INSPECTION/ANALYSIS ON 10/3/2016. - [SDR 2016FA0000525](https://openairdocs.org/sdr/2016FA0000525.md): Pushrod · worn · Sep 30, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > UPON INITIAL INSPECTION IAW SA-167, THE FOLLOWING ABNORMALITIES WERE DISCOVERED. CYLINDER NR 2 INTAKE PUSHROD (ROCKER ARM END) AND ROCKER ARM WERE ABNORMALLY WORN. CYLINDER NR 4 INTAKE PUSHROD (ROCKER ARM END) AND ROCKER ARM WERE ABNORMALLY WORN. THESE PART - [SDR 2016FA0000468](https://openairdocs.org/sdr/2016FA0000468.md): Pushrod · damaged · Sep 30, 2016 · N781LU · Piper PA44180 · Engine (Reciprocating) > UPON INSPECTION DUE TO PREVIOUSLY DISCOVERED WORN PUSHRODS, INSPECTED LH ENGINE VALVE TRAIN PER LYCOMING AND OWNER/OPERATOR REQUEST, RESULTS AS FOLLOWS: CYLINDER #2 INTAKE AND EXHAUST PUSHRODS AND ROCKER ARMS SHOW ABNORMAL WEAR, CYLINDER #3 INTAKE PUSHROD AND - [SDR 2016FA0000524](https://openairdocs.org/sdr/2016FA0000524.md): Pushrod · worn · Sep 27, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > UPON INITIAL INSPECTION IAW SA-167 THE FOLLOWING ABNORMALITIES WERE FOUND. CYLINDER NR 2 INTAKE AND EXHAUST PUSHRODS (ROCKER ARM ENDS) AND ROCKER ARMS WERE ABNORMALLY WORN. CYLINDER NR 3 INTAKE PUSHROD (ROCKER ARM END) AND ROCKER ARM WERE ABNORMALLY WORN, CY - [SDR L48S2016FA0000436](https://openairdocs.org/sdr/L48S2016FA0000436.md): Pushrod · worn · Sep 14, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > DURING CHANGE OF CYLINDERS 1, 2, 3 AND 4 IAW CUSTOMER REQUEST, EXCESSIVE WEAR OF PUSHRODS, ROCKER ARMS WERE OBSERVED. EXCESSIVE WEAR APPEARS TO BE DUE TO OIL STARVATION, CAUSING EXCESSIVE VALVE LASH CLEARANCE AND CHATTERING. TIME SINCE LAST OIL CHANGE AND OI - [SDR 2016FA0000422](https://openairdocs.org/sdr/2016FA0000422.md): Cylinder · cracked · Aug 30, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > NR 3 CYLINDER HAD CRACK FROM OUTSIDE OF CYLINDER THROUGH INTO COMBUSTION CHAMBER, APPROXIMATELY 2 INCHES INBOARD OF WHERE CYLINDER HEAD MEETS BARREL. NO INDICATIONS FROM FLIGHT CREW. A GENERAL NOISE WAS OBSERVED FROM MAINTENANCE PERSONEL DURING A ROUTINE 50 H - [SDR 2016FA0000421](https://openairdocs.org/sdr/2016FA0000421.md): Cylinder · cracked · Aug 30, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > NR 3 CYLINDER HAD A CRACK FROM OUTSIDE OF CYLINDER THROUGH INTO COMBUSTION CHAMBER, APPROXIMATELY 2 INCHES INBOARD OF WHERE CYLINDER HEAD MEETS BARREL. NO INDICATIONS FROM FLIGHT CREW. A GENERAL NOISE WAS OBSERVED FROM MAINTENANCE PERSONEL DURING A ROUTINE 50 - [SDR 2016FA0000420](https://openairdocs.org/sdr/2016FA0000420.md): Cylinder · cracked · Aug 30, 2016 · N781LU · Piper PA44180 · Reciprocating Engine Cylinder Section > NR 3 CYLINDER HAD A CRACK FROM OUTSIDE OF CYLINDER THROUGH INTO COMBUSTION CHAMBER, APPROXIMATELY 2 INCHES INBOARD OF WHERE CYLINDER MEETS BARREL. NO INDICATIONS FROM FLIGHT CREW. A GENERAL NOISE WAS OBSERVED FROM MAINTENANCE PERSONEL DURING A ROUTINE 50 HR O - [SDR 2017FA0000208](https://openairdocs.org/sdr/2017FA0000208.md): Stop · stripped · Jul 4, 2016 · N781LU · Piper PA44180 · Propeller Hub Section > DURING ROUTINE INSPECTION, MAINTENANCE FOUND THE LEFT PROPELLER LOW PITCH STOP STRIPPED. - [SDR 2017FA0000209](https://openairdocs.org/sdr/2017FA0000209.md): Stop · stripped · May 7, 2015 · N781LU · Piper PA44180 · Propeller Hub Section > DURING ROUTINE INSPECTION, MAINTENANCE CREW FOUND THE LT PROPELLER LOW PITCH STOP WAS STRIPPED. - [SDR BGSR20150417003](https://openairdocs.org/sdr/BGSR20150417003.md): Propeller · stripped · Apr 17, 2015 · N781LU · Piper PA44180 · Propeller Hub Section > DURING A 100 HOUR INSPECTION, MECHANIC FOUND THE PROPELLER LOW PITCH STOP THREADS STRIPED THAT HOLD THE SPINNER IN PLACE ON CENTER OF THE PROPELLER. SAFETY WIRE IS STILL IN PLACE. - [SDR 2017FA0000210](https://openairdocs.org/sdr/2017FA0000210.md): Stop · stripped · Apr 5, 2015 · N781LU · Piper PA44180 · Propeller Hub Section > DURING A ROUTINE INSPECTION, MAINTENANCE FOUND THE RT PROPELLER LOW PITCH STOP STRIPPED. ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 n_number = 'N781LU' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N781LU/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.