JASC 7714
Service difficulty reports · 1,357
Reports filed under 7714 · Engine RPM Indicating System, newest first.
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 jasc_code = '7714' 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 jasc_code = '7714' 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.
SDR HAIHEEA9255Tach Generator · shaft shearedSHAFT SHEARED. INSPECTED BY ACCESSORY OVERHAUL AND FOUND NO PROBLEM WITH TACH. GEN THAT WOULD HAVE CAUSED SHAFT TO SHEAR.SDR VTZA97196Rpm Gauge · failedJFK/BOS - FLT 6462 - DURING TAKEOFF AT 1220 HOURS ON 3-27-97, ABORTED TAKEOFF DUE TO LT ENGINE RPM DROPPED TO ZERO PERCENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSP AND REMOVED AND REPLACED RPM INDICATOR, OPS CHECK OK. AIRCRAFT WSDR REXA97076Rpm Gauge · gauge stuckRT RPM STUCK AT 60 PERCENT. REPLACED RT RPM GAUGE. (M)SDR USAASB97087N1 Speed Sensor · failedPIT - FL 1052 - DURING CLIMB-OUT FROM PIT, THE NR 2 ENGINE N1 FLUCTUATED3-5 PERCENT. FLIGHT RETURNED TO FIELD AT PIT AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 2 ENGINE N1 FAN SPEED SENSOR. RAN ENGINE AT TAKEOFF POWER. ALLSDR REXA97066Gauge · inoperativeRETURN TO RAMP WITH LEFT RPM INOP. REMOVED AND REPLACED GAUGE. (M)SDR VTZA97185Tach Generator · failedIAD/GSO - FLT 6348 - DURING CRUISE AT 0945 HOURS ON 3-18-97, MADE A SCHEDULED LANDING AT IAD WITH ONE DISCREPANCY WHICH WAS LT ENGINE RPM INDICATION FAILED. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED TACH GSDR 97ZZZX3607Control Box · malfunctionROUGH RUNNING, N2 CONTROL.SDR CA970421043Tach Generator · sheared(CAN) N1 TACH GENERATOR SHAFT SHEARED.SDR 97ZZZX1635Tachometer · defectiveTACHOMETER NEEDLE MOVEMENT HESITATES WITH CHANGES IN THROTTLE MOVEMENT. THIRD TACHOMETER OF SAME MAKE AND MODEL INSTALLED IN SAME AIRCRAFT.SDR RAIA970302Rpm Indicator · failedCMI - FLT 7439 - LEFT ENGINE RPM FLUCTUATES 98.5 - 99.5 PERCENT. MAINTENANCE REPLACED LEFT RPM INDICATOR. (M)SDR 9704669923Tach Generator · erraticAS TAKEOFF POWER WAS APPLIED, THE RIGHT ENGINE N1 INDICATION WOULD NOT INCREASE ABOVE 80 PERCENT. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE N1 TACH GENERATOR AND N1 INDICATOR FOR THE RIGHT ENGINE. ENGINE WAS RUN TO TAKEOFF POWESDR HEEA979149Indicator · reads lowENGINE N1 INDICATOR READS LOW.SDR CA970219001Tachometer · stuck(CAN) ENGINE STARTED NORMAL CONDITIONS. TACHOMETER NEEDLE STUCK AT 800 RPM. WOULD NOT RISE OR FALL.SDR HEEA979066Indicator · failedINDICATOR NEEDLE WILL NOT GO PAST 4%. REPLACED WITH SERVICEABLE GAUGE.SDR 97ZZZX2435Pickup Assy · defectiveN2 INDICATOR FLUCTUATES. PROBLEM FOLLOWS PICKUP WHEN SWAPPED FROM SIDE TO SIDE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 97ZZZX1824Tach Generator · ear brokenTACHOMETER GENERATOR AREA WAS OILY. TACHOMETER WAS REMOVED FOR INSPECTION. FOUND ONE OF THE EARS OF THE GENERATOR SHAFT FORK BROKEN OFF. NO OPINION AS TO CAUSE.SDR HEEA978931Indicator · reads lowTACH INDICATOR READS 5% LOW.SDR HEEA978865Indicator · fluctuatesINDICATOR FLUCTUATION DURING START AND OCCASIONALLY DURING FLIGHT.SDR HEEA978844Transmitter · failedENG TACH TRANSMITTER INOPERATIVE.SDR VTZA97079Tach Generator · failedFLT 6348 - IAD-GSO - DURING CRUISE, AIRCRAFT MADE AN SCHEDULED LANDING AT GSO WITH ONE DISCREPANCY WHICH WAS RIGHT ENGINE RPM INDICATOR FAILED TO ZERO. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED ADN REMOVED ADN REPLACED TACH GENERASDR VTZA96466Tach Gen · failedFLT 6319 - IAD-CLE - DURING CLIMB, MADE AN UNSCHEDULED LANDING DUE TO RIGHT RPM INDICATION DROPPED TO ZERO. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED TACH GEN, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SESDR 9626909853N1 Indicator · malfunctionedDURING TAKEOFF ROLL, THE RIGHT ENGINE N1 INDICATION WAS ABNORMALLY LOW. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE REPLACED THE N1 INDICATORS FOR BOTH ENGINES, OPERATIONAL CHECK OK.SDR 97ZZZX2142Tach Generator · defectiveN2 NEEDLE BOUNCES AND IS SLOW TO RESPOND AT START-UP. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA968722Indicator · failed#2 NEEDLE HAS NO INDICATION. TIME SINC E REPAIR 90:10.SDR HEEA968721Indicator · wire brokenTRIPLE TACH REAR CONNECTOR SEPARATED FROM CAN AND WIRE BROKEN. TIME SINCE REPAIR 0:00.SDR SWIA95790N1 Contl Amp · failedRIGHT ENGINE N1 AND N/FF FLUCTUATING AT CRUISE N1 96-88 PERCENT, NORMAL OPERATION AFTER RT ENGINE SPEED SWITCH TURNED OFF PER A/C ORH MANUAL MEL 26-11-1. RIGHT ENGINE SPEED SWITCH. RETURNED TO FIELD. REPLACED RT ENGINE N1, CONTROL AMP IAW MM 73-21-03. OPSSDR USAABB96058N3 Tach · failedBWI - FLT 1441 - EN ROUTE BWI-SXM, CREW NOTED THE RIGHT DUCT PRESSURE LOW, THE RIGHT ENGINE N3 INDICATION AT ZERO, AND THE RIGHT ENGINE OIL PRESSURE IN THE AMBER BAND. FLIGHT RETURNED TO BWI AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE FOUND AND SECURED SDR HEEA968551Indicator · needle looseNEEDLE IS LOOSE ON SHAFT. THIS UNIT WAS REPAIRED ON 8-1-96.SDR 9625119908N1 Indication · lowAS POWER WAS APPLIED FOR TAKEOFF THE RIGHT ENGINE N1 INDICATION WAS LOW. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE RAN BOTH ENGINES TO TAKEOFF SETTINGS AND ALL INDICTIONS WERE NORMAL.SDR 9624641154N 1 Transmitter · failedDURING TAKEOFF ROLLOUT, THE NR 3 ENGINE N1 WOULD NOT REACH TAKEOFF POWER WITH ENGINE FAIL LIGHT ILLUMINATED. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE NR 3 N1 TRANSMITTER.SDR VTZA97060Tach Generator · failedFLT 6372 - IAD-AIB - DURING CRUISE, MADE AN UNSCHEDULED LANDING DUE TO RIGHT RPM FAILED IN FLIGHT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE REMOVED AND REPLACED TACH GEN, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (SDR 96ZZZX6034Indicator · failedINDICATOR FAILED. REPLACED WITH NEW DUAL TACH IND.SDR WTAA960184Tach Generator · failedIPL - LEFT ENGINE RPM INDICATION FAILED ON TAKEOFF. AIRCRAFT RETURNED TO STATION WITHOUT INCIDENT. FERRIED AIRCRAFT TO LAX. MAINTENANCE REPLACED LEFT TACHOMETER GENERATOR. OPERATIONAL CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)SDR HEEA968356Indicator · needle sticksTURBINE NEEDLE STICKS AT 33%.SDR HEEA968355Indicator · defectiveINDICATOR FACE IS ROTATED 45 DEGREES FROM VERTICAL.SDR HEEA968297Indicator · reads highINDICATES HIGH OUT OF TOLERANCE AT 100%. STICKS ON START.SDR CA970311058Tach Generator · surging(CAN) ENGINE RPM INDICATOR SURGING 10-15 PERCENT. N1 TACH GENERATOR REMOVED, FOUND WIRE CHAFED (TO GROUND) UNDER ELECTRICAL CONNECTOR CAP.SDR HEEA968078Indicator · failed#2 NEEDLE HAS NO INDICATION.SDR HEEA968030Indicator · sticksNEEDLE STICKS ON LOW END.SDR HEEA968027Indicator · intermittent#1 NEEDLE HAS INTERMITTENT OPERATION.SDR HEEA968020Rpm Warn Box · malfunctionWARNING LIGHT ILLUMINATES AT 100% N2 AND 100% NR WITH N1'S MATCHED. DOES NOT ILLUMINATE WITH 12% N1 SPLIT.SDR HEEA967999Indicator · reads lowINDICATOR INTERMITTENTLY READS LOW.SDR RAIA960940Tach Generator · failedSTL - FLT 7071 - RIGHT RPM INDICATOR DROPPED TO ZERO. MAINTENANCE REPLACED THE RIGHT TACH GENERATOR. (M)SDR MALA965138Rpm Indicator · failedFLT 3395 - AFTER TAKEOFF FROM DTW, THE RIGHT ENGINE RPM DROPPED TO 97 PERCENT. THE AIRCRAFT RETURNED TO DTW. MAINTENANCE REPLACED THE RIGHT RPM INDICATOR. ALL CHECKS SATISFACTORY. (M)SDR HEEA967803Indicator · defective#2 NEEDLE WILL NOT GO TO ZERO AND #1 NEEDLE INDICATES LOW.TIME SINCE REPAIR 108:20.SDR BDHA9600023Tach/Generator · failedRAP - FLT 434 - THE RIGHT ENGINE RPM WAS ERRATIC IN FLIGHT. THE PROBLEM COULD NOT BE DUPLICATED ON THE GROUND. THE TACH GENERATOR WAS REMOVED FOR INSPECTION AND THE SHAFT WAS LOOSE FROM A WORN ROLE PIN THE BACK. THE TACH GENERATOR WAS REPLACED AND ENGINE RUSDR HEEA967746Indicicator · sticksSTICKS FROM 0% TO 30% INTERMITTENTLY. TIME SINCE REPAIR 17:05.SDR S2YA960029Tach Indicator · inoperativeDURING THE MONTH OF SEPTEMBER THERE WERE THREE TURBINE TACH INDICATORS, P/N 114-380036-5, THAT HAD PART OF THEIR LIGHTED DIGITAL READOUT BURN OUT, THE ANALOG PORTION OF THE INDICATOR REMAINED OPERATIVE. THE PARTS' TOTAL TIMES WERE 6105 HOURS FROM A/C N NR 801SDR 96ZZZX5764Tach Generator · failedTACH GEN DRIVE SHAFT DISENGAGED FROM INTERNAL DRIVE PIN.SDR 96ZZZX5762Triple Tach · needle sticksNR 2 ENGINE NEEDLE STICKS - SUBMITTER STATES UNIT WAS REPAIRED FOR SAME DISCREPANCY LAST REPAIR.
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