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 ASAA2016120318921Sensor · faultedNR 2 ENGINE N2 SIGNAL FLUCTUATES DURING TAKEOFF, FOUND ON OIP REPORT 07. ACFT GROUNDED. PERFORMED EEC BITE NR 2 ENGINE IAW AMM 73-21-00-740-803-F00. NO FAULTS FOUND. INSPECTED N2 SENSOR HARNESS CONNECTORS DP1201, DP0506 AND DP0603. NO DEFECTS FOUND. REMOVED ASDR ASAA2016112018888Sensor · failedNR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. VERIFIED NR 2 ENGINE N2 TACH LOSS FAULTS LOGGED IN AAVM. REMOVED AND REPLACED NR 2 ENGINE N2 TACH SENSOR, IAW AMM 77-SDR ASAA2016111218638Sensor · faultyNR 1 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. GROUNDED - YES. REMOVED & REPLACED NR 1 ENG N2 SENSOR REF AMM 77-11-02. OPS CK GOOD.SDR 2016F00179Ovrspeed Limiter · activatedNR 2 ENGINE SHUTDOWN IN FLIGHT DURING TRAINING DUE TO A TRIPPING OF THE NR 2 OVER SPEED PROTECTION BOX. PILOTS VERIFIED VISUALLY THAT THERE WAS NO OVERSPEED THAT OCCURRED AND PROCEEDED WITH A RUN ON LANDING. AFTER TROUBLESHOOTING WE FOUND THE OVERSPEED PROTESDR ASAA2016070617264Sensor · failedNR 1 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. AAVM LOGGED MULTIPLE E1 N2 TACH LOSS. REMOVED AND REPLACED NR 1 ENGINE N2 SENSOR IAW AMM 77-11-02. LEAK CHECKED AND SDR 5HAS2016022900104Tach Generator · shearedLOSS OF RT ENGINE RPM INDICATION DUE TO THE TACH-GEN INSTALLATION ADAPTER SHEARED AT THREADED PORTION OF ADAPTER.SDR ASAA2016011714840Sensor · failedNR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. ACCOMPLISHED AVM SIGNAL CONDITIONER BITE REF FIM 77-31, TASK 801, SHOWS "N2 TACHO LOSS E2" MSG. ACCOMPLISHED FIM 77-SDR HALA2015092600200Probe · faultedRECEIVED AN EICAS MESSAGE FOR THE LT ENGINE ELECTRONIC CONTROL C1. IAW TROUBLESHOOTING, FOUND N1 SPEED PROBE FAULTING. R & R NR 1 ENGINE, N1 SPEED PROBE IAW AMM 73-21-06. OPS CHECK, LEAK CHECK GOOD. OK FOR SERVICE.SDR ANCF2015082001Warning System · false activationAIRCRAFT RETURNED TO GATE DUE TO ENG 2 OVSPD PROT FAULT IN TAXI OUT. PFR SHOWS MSG FMU E2-4071KS, SOV POS TSM 73-21-72-810-692A, PERFORMED SUCCESSFULLY. ENG 2 RUN UP AT IDLE BY CREW WITH NO FAULT MSG. ACFT SERVICEABLE FOR REVENUE FLIGHT. ACFT RETURNED TO SSDR ANCF2015062801Warning System · false activationENGINE OVER SPEED ROT FAULT DURING THE START OF ENG 1, SMOKE LAVATORY DET FAULT. PERFORMED ENG 1 FADEC CH A B, 1 & 2 EEC GND SCANNING. NO FAULTS DETECTED IAW AMM 73-21-00-740-808-A. PERFORMED CIDS & SDCU RESET, NO HELP. PERFORMED ACFT POWER DOWN & POWER UPSDR AALA20150610002Tach Generator · faultyAIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS OVERWEIGHT. DURING CLIMB RT ENG N3 INDICATION FLUCTUATED WIDELY. R & R RT ENG N3 TACH GEN IAW AMM 77-12-02. ACCOMPLISHED HIGH POWER ASSURANCE RUN IAW AMM 71-00-00 WITH ALL INDICATIONS NORMAL. SYS SDR HDNA20150325001Indicator · faultyTRIPLE TACH INDICATOR FAILS SELF-TEST WHEN IT GETS HOT DUE TO OUTSIDE AIR TEMP BEING WARM.SDR ASAA2015031810986Sensor · faultedNR 1 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. AAVM LOGGED NUMEROUS N2 TACHO LOSS FAULTS. REPLACED NR 1 ENG N2 SENSOR. OP CK NORMAL. REF MM 77-11-01.SDR ASAA2015031010905Sensor · intermittentNR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT. ACFT GROUNDED. REF FIM 77-31, TASK 805, 1ST LISTED CAUSE FOR N2 TACH LOSS FAULT IS N2 SENSOR. R & R NR 2 ENG, N2 SENSOR AND OPS & LEAK TEST GOOD IAW AMM 77-11-02. AVM SHOWS "NO MAINT MSGS" SDR ASAA2015021910728Fault Code · activatedWHILE ACCOMPLISHING AAVM INTERROGATION, FOUND E2 N2 TACH LOSS FAULTS LOGGED IN AAVM. ACFT GROUNDED. ON DEFERRAL.SDR ASAA2015021910684Sensor · intermittentNR1 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. REPLACED NR 1 ENGINE N2 SPEED SENSOR IAW MM 77-11-02. TESTS GOOD IAW POWER PLANT TEST REF TABLE MM 71-00-00-800-811-SDR AALA20141128005Tach Generator · defectiveAIRCRAFT RETURNED, EMER NOT DECLARED & LANDING UNEVENTFUL. ACFT NOT OVERWEIGHT. LT ENG N3 FLUCTUATION ALONG WITH LT ENG BLEED OFF & LT ENG SPEED CARD STATUS MSG. ACCOMPLISHED WIRING CHECK OF LT ENG N3 TACH GEN IAW WDM 71-51-22 WITH NO FAULTS FOUND. R & R LT SDR AALA20141111034Tach Generator · failedRETURNED & EMER DECLARED. LANDING UNEVENTFUL. ACFT WAS OVERWEIGHT. DURING INITIAL CLIMB OUT AT 500 FEET LT ENG BLEED OFF FOLLOWED BY LT PACK OFF. FOLLOWED QRH PROCEDURES. THIS WAS FOLLOWED BY THE RT ENG BLEED & RT PACK CYCLING ON & OFF WITH THE RT CTR FUESDR FDEA201408062092Sensor · faultyWHILE DESCENDING TO 6000 FEET, ENGS IDLE, NR 2 ENG RPM N1, ENG 2 EXCEEDANCE ALERT. SHUTDOWN NR 2 ENG IAW CHECKLIST. ON POST FLT FOUND NR 2 ENGINE N1 READING ERRATICALLY WITH ENGINE SHUTDOWN PEAKING @ 134.8. REMOVED AND REPLACED NR 2 FAN SPEED SENSOR IAW MM SDR 2014FA0000429Tach Generator · failedTHE ENGINE TACHOMETER WOULD NOT REGISTER BELOW 1000 RPM. REPLACED THE TACH GENERATOR AND DISCOVERED THE KEYWAY ON THE SHAFT HAD WORN OFF. LOG BOOK RESEARCH SHOWED THAT THE SAME PROBLEM OCCURRED IN 2007 AT TTAF 253.5.SDR CALA2014070300864Transmitter · failed1.5 HOURS INTO FLIGHT LT ENG BLEED OFF LIGHT ILLUMINATED, FOLLOWED BY LT CTR FUEL PUMP LIGHT. FOLLOWED QRH CARRIED OUT T - S IAW MM 28-22-00-815-804 PG 1. DEFAULTED TO N3 HP TACHOMETER TRANSMITTER & REPLACED IAW MM 77-12-02-404-005-R-00. REPAIRED CONNECTOR SDR ASAA2014060608092Sensor · failedNR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 07 DURING TAKEOFF/CRUISE. ACMS REPORTS SHOW NORMAL PARAMETERS. ACFT GROUNDED. REPLACED N2 SPEED SENSOR REF MM 77-11-02. BITE & LEAK CK OK.SDR CA140613005Tach Generator · malfunctioned(CAN) ON FIRE ACTION, NOTICED THE NR 2 ERPM GAUGE HAD BACKED OFF TO 13200 RPM. TIT, HP, FF AND HERTZ ALL READ NORMAL. THE MEL REQUIRES 4 ENGINE TACHOMETERS FUNCTIONING, ELECTED TO SHUTDOWN ENGINE 2 IAW SOP. SECURED ENGINE, COMPLETED ABNORMAL PREAMBLE AND 1 ESDR XCGA20140529001Transducer · inoperativePILOT REPORTED THAT DURING INITIAL CLIMB TO FL190 THE N1, N2 & FUEL FLOW ON THE NR 1 ENG BEGAN TO SURGE UP & DOWN & THEN STABILIZED. THE PILOT ELECTED TO RETURN TO THE DEPARTURE AIRPORT & MADE A NORMAL APPROACH & LANDING. THE ENG RETURNED TO NORMAL OPERATIONSDR ASAA2014040107408Sensor · intermittentNR 2 ENGINE ACMS DATA SHOWS INTERMITTENT N2 VALUES FROM OIP REPORT 7. TAKEOFF AND CRUISE ACMS REPORTS SHOW NORMAL PARAMETER. ACFT GROUNDED. R & R NR 2 ENGINE N2 SPEED SENSOR IAW AMM 77-11-02. OPS AND LEAK CHECKED GOOD. ACCOMPLISHED EEC BITE CHECK IAW AMM SDR ASAA2014030107064Sensor · faultedNR 1 ENGINE HAS SHORT TERM ENGINE FAULT 77-1113, N2 SPEED SENSOR SIGNALS DISAGREE. ACFT GROUNDED. R & R NR 1 ENG NR 2 SPEED SENSOR IAW MM 77-11-02. PERFORMED EEC BITE TEST IAW MM 71-00-00 AND ENG RUN IAW MM 71-00-00-700-801. SYSTEM OP CHECKED GOOD.SDR ASAA2014022506989Sensor · failedNR 1 ENGINE VIBRATION INDICATOR BLANK. ACFT GROUNDED. PERFORMED AAVM SYSTEM TEST IAW AMM 77-31-00. FOUND FLIGHT HISTORY FAULTING ENG 1 TACH LEGS 1-25. REPLACED NR 1 ENGINE N2 TACH SENSOR IAW AMM 77-11-02. OPS AND LEAK CHECKED GOOD. GROUND VERIFICATION SUCCSDR CA140221023Tachometer · inaccurate(CAN) INCORRECT READING OF DUAL TACH AT 100 PERCENT RPM. DUAL TACH REPLACED.SDR CA140224016Cable · broken(CAN) THE ACFT WAS SNAGGED FOR NO RPM INDICATION. MAINTENANCE FOUND THE INTERNAL TACH DRIVE CABLE WAS SHEARED. THE CABLE WAS REPLACED WITH NEW, ENGINE RUNS COMPLETED AIRCRAFT RELEASED.SDR CA131122001Tachometer · faulty(CAN) A DEFECT WAS REPORTED OF A POSSIBLE FAULTY TACH WHICH WAS CAUSING AN OVERSPEED INDICATION, TACH CABLE WAS DISCONNECTED AT BOTH ENDS TO CHECK CABLE SMOOTHNESS AND NO FAULT FOUND. ACFT GROUND RUN SEVERAL TIMES AND AT SEVERAL RPM SETTINGS WITH NO FAULT FOUSDR AALA20131120001Transmitter · inoperativeSJU INFLIGHT MIA-REC FLUCTUATING N3 ON THE RT HAND ENG ALONG WITH FLUCTUATING RT HAND BLEED PRESSURE. FLIGHT DIVERTED SJU LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RT HAND EN N3 TACH TRANSMITTER. SYSTEM GROUND CHECKED NORMAL OPERATIOSDR QMLA2013101713146Tachometer · defectiveDURING START OF TAKING OFF, RECEIVED A VISUAL WARNING LIGHT AND AUDIABLE GONG AND TRIPLE TACH DROP OFF.SDR CA131018005Tachometer · malfunctioned(CAN) UPON GROUND RUNUP THE TACOMETER WAS OBSERVED TO HAVE A NEEDLE JUMPING/HUNTING BETWEEN 200 RPM, 100 UP AND 100 DOWN AT ANY RPM THIS WOULD HAPPEN. UPON USING A TACHOMETER CHECKER IT WAS OBSERVED THAT THE TACHOMETER WAS ACTUALLY READING 400 LOW ON THE RPM SDR REXA2013080801571Warning Message · false activationDURING CRUISE AT FL200, RECIEVED A LEFT ENGINE N2 OVERSPEED INDICATION. N1, ITT, FF, OIL TEMP, OIL PRESSURE ALL REMAINED NORMAL. THRUST REDUCED TO 80 PERCENT AND N2 INDICATION RETURNED TO NORMAL. CONTINUED FLIGHT WITH PERFORMED OPS CHECK AND INSPECTED BLUE HASDR CA130703001Indicator · malfunctioned(CAN) DURING ENGINE START, ENGINE SLOW TO ACCELERATE. REPLACED NG INDICATOR.SDR CA130613007Indicator · malfunctioned(CAN) DURING CLIMB AFTER T/O, THE ENGINE TORQUE INDICATION FLUCTUATED 3 TIMES BEFORE DROPPING TO ZERO. THE PILOT SELECTED MAX CONTINUOUS POWER SETTING AND THE TORQUE RETURNED TO NORMAL.HE ELECTED NONETHELESS TO RETURN TO THE ORIGIN POINT WHERE AN UNEVENTFUL LSDR CA130604009Cable · broken(CAN) PILOT REPORTED A LOSS OF ENGINE RPM INDICATION. WHEN THE TACH CABLE WAS REMOVED FROM THE ENGINE THE END WAS FOUND TO BE STRIPPED AND THE INSIDE CABLE WAS VERY HARD TO TURN AND CORRODED. THE CABLE WAS REPLACED AND ENGINE RUN CARRIED OUT WITH NO FAULTS. (TSDR 3GMA20130515004Tachometer · inoperativeDURING SYSTEM CHECK, AFTER STARTING NR 1 ENGINE, NO ROTOR TACH WAS INDICATED WITH ROTORS TURNING.SDR CA130410019Tach Generator · failed(CAN) DURING TAKEOFF, NON FLYING PILOT NOTED THE CO-PILOTS ENGINE RPM, TACH, INDICATOR LT NEEDLE DROPPING FROM TAKEOFF RPM TO ZERO WITH NO CHANGE IN ENGINE PERFORMANCE. PRIMARY FLIGHT DISPLAY TACHOMETER INDICATION REMAINED UNCHANGED. INSPECTION DETERMINED THASDR CA131111003Tachometer · reads low(CAN) UPON GROUND RUN, TACHOMETER FOUND TO BE READING LOW BY 300 RPM. TACHOMETER REPLACED NEW.SDR CA130214022Indicator · failed(CAN) NR 1 ENGINE DUAL TORQUE NEEDLE NOT INDICATING.SDR SWIA201332582Pickup · failedLEFT THRUST REVERSER UNLOCK CAUTION MESSAGE PLUS ENGINE YAW. (FLT 5492) REPLACED FAN SPEED PICKUP IAW AMM. LUBRICATED THE LEFT THRUST REVERSER. OPS CHECK GOOD.SDR CA130115005Indicator · malfunctioned(CAN) UPON GROUND RUNUP ACFT ENGINE FOUND NOT TO BE MAKING TAKEOFF POWER. ENGINE REPORTED RUNNING GREAT WITH NO ABNORMALITLYS BUT PLANE RETURN TO MAINTAINCE. UPON MAINTAINCE GROUND RUN TACH STROBE UNIT USED TO DETERMINE THAT THE TACH WAS READING 200 RPM LOW.SDR 9JLA201212045728Indicator · stuckPILOTS REPORTS THE LT ENGINE N1 INDICATOR STICKS BETWEEN 75 PERCENT AND 80 PERCENT. THIS INDICATOR FAILED 3.4 HRS AFTER INSTALLATION. FAA FORM 8130-3 INDICATED THAT UNIT STATUS WAS TESTED ON SEP 26, 2012.SDR CA121218017Cable · kinked(CAN) DURING INSPECTION, THE LT ENGINE TACHOMETER CABLE WAS FOUND BADLY KINKED, WITH THE OUTER CASING STARTING TO UNWIND. TACH CABLE REPLACED WITH NEW CABLE.SDR AALA20121110008Generator · inoperativeHNL - INFLIGHT OGG-LAX CREW REPORTED RIGHT ENGINE N3 INDICATION FLUCUATION AND SPEED CARD MESSAGE. EMERGENCY DECLARED FLIGHT DIVERTED HNL LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED RIGHT ENGINE N3 GENERATOR. SYSTEM GROUND CHECK NORMALSDR FDEA201211073899Indicator · failedNR 2 ENGINE INOP DURING T/O ROLL. ATTEMPTED TWICE, RTO , 80 KTS. R & R NR 2 ENGINE N1 INDICATOR AND TORQUED SCREWS IAW AMM 20-21-12-00. MAX POINTER PRESS TO TEST CARRIED OUT, TESTS NORMAL. ENG NR 2 RUN IAW JRH ENG NR2 N1 INDICATION NORMAL. .SDR ALGA2012110729129Unknown · unknownON INITIAL ROLL UP OF THROTTLE, THE RPM WAS NOTED AS WELL ABOVE 101 PERCENT AND WAS "BEEPED" DOWN TO 100 PERCENT. FIVE MINUTES INTO THE FLIGHT THE RPM WAS NOTED TO BE WELL BELOW LOWER REDLINE APPROX 98 PERCENT. ATTEMPTED TO BEEP THE RPM UP BUT WAS UNSUCCESSSDR NACA201210100014Indicator · inoperativeMASTER CAUTION LIGHT, FLIGHT CONTROL CAP LIGHT, AND SPEED TRIM FAIL LIGHT ON TAKEOFF. TAKEOFF WAS REJECTED AT 100KTS. REMOVED AND REPLACED N1 RPM INDICATOR, OP CHECKED GOOD. REF: B737-300MM 77-12-00 PG 501.SDR CA120817005Tachometer · failed(CAN) CO-PILOT DUAL TACH N2 ENGINE RPM NEEDLE, FAILS TO MOVE WHEN ENGINE IS RUNNING, STAYS AT 0 RPM.
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