# Service difficulty reports: JASC 7714

A list on [JASC 7714](https://openairdocs.org/jasc/7714.md).

Reports filed under 7714 · Engine RPM Indicating System, newest first.

Page 1 of 28 · 1,357 reports

- [SDR QR9R2026082100001](https://openairdocs.org/sdr/QR9R2026082100001.md): Sensor · failed · Aug 21, 2026 · Bolkms BK117C2
  > IN FLIGHT NR NEEDLE ON TRIPLE TAC FAILED. IN FLIGHT NR FLUCTUATED CONTINUOUSLY BETWEEN NORMAL RANGE AND 0 WITH ASSOCIATED LIGHT AND WARNING TONES. REMOVED AND REPLACED SPEED PICK-UP SENSOR IAW AMM 62-41-00, 4-1. MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2026081100001](https://openairdocs.org/sdr/QR9R2026081100001.md): Sensor · failed · Aug 11, 2026 · Bolkms BK117C2
  > OVSP SYSTEM 1 FAILED DURING START RUN-UP. MAINTENANCE ARRIVED AND PULLED CB AND CAUTION LIGHT WAS STILL ILLUMINATED AFTER RESETTING CB. DURING TROUBLESHOOTING, FOUND #1 ENGINE OVERSPEED SENSOR BAD. PINS 1-2 OP AND PINS 4-5 HIGH RESISTANCE. REMOVED AND REPLACED
- [SDR DALA2026080704581](https://openairdocs.org/sdr/DALA2026080704581.md): Pressure Sensor · faulted · Aug 7, 2026 · N120DU · Airbus BD5001A10
  > DIVERTED TO DTW DUE TO RIGHT ENGINE FAULT WITH ASSOCIATED N1 ERRATIC AND N1 DROP. REPLACED BURNER PRESSURE SENSOR PER A220 AMP 73-21-23. REPLACED HARNESS W04 PER A220 AMP 73-21-64. REPLACED EEC PER A220 AMP 73-21-01. (LP 8423746 - AIRCRAFT WAS GROUNDED)
- [SDR QR9R2026073000001](https://openairdocs.org/sdr/QR9R2026073000001.md): Sensor · faulty · Jul 30, 2026 · Bolkms BK117C2
  > ON TAKEOFF, ROTOR RPM WARNING LIGHT AND NRO NEEDLE ON TRIPLE TACH WENT TO ZERO. REMOVED AND REPLACED ROTOR RPM SENSOR IAW AMM 63-21-00, 5-1.
- [SDR QMLA2026072520049](https://openairdocs.org/sdr/QMLA2026072520049.md): Dual Tachometer · degraded · Jul 23, 2026 · N404LL · Bell 407
  > NEEDLES ON DUAL TACH NOT ALIGNED WHILE RUNNING. FADEC DEGRADED/RESTART FAULT LIGHT ILLUMINATED AFTER STARTUP. REMOVED AND REPLACED DEFECTIVE DUAL TACH GAUGE.
- [SDR QR9R2026071500001](https://openairdocs.org/sdr/QR9R2026071500001.md): Sensor · failed · Jul 15, 2026 · Bolkms BK117C2
  > OVERSPEED CAUTION LIGHT ILLUMINATED DURING START RUN-UP. REMOVED AND REPLACED #2 ENGINE OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01.
- [SDR UIEA2026060900455](https://openairdocs.org/sdr/UIEA2026060900455.md): Circuit Card · faulted · Jun 9, 2026 · N649GT · Boeing 767375
  > RAT DEPLOYED RIGHT AFTER ROTATION ON TAKE-OFF. GREEN PRESSURE LIGHT ILLUMINATED(<P>REMOVED AND REPLACED LH ENG SPEED CARD & STOWED RAT PER AMM 73-21-54. NO FURTHER DEFECTS NOTED</P>)
- [SDR QR9R2026051300001](https://openairdocs.org/sdr/QR9R2026051300001.md): Sensor · out of tolerance · May 13, 2026 · Bolkms BK117C2
  > ENG 1 OVERSPEED ON CAD. PULLING THE BREAKER MADE IT GO AWAY, PUTTING THE BREAKER BACK IN MADE IT COME BACK ON. WHEN GOING TO IDLE AND BACK TO FLIGHT IT GOES AWAY, COMES BACK ON AT A HOVER. DURING TROUBLESHOOTING, FOUND #1 ENGINE OVERSPEED SENSOR BAD, READS OUT
- [SDR CALA2026041715440](https://openairdocs.org/sdr/CALA2026041715440.md): Sensor · faulted · Apr 15, 2026 · N67052 · Boeing 767424ER
  > RIGHT ENG ANALOG N2 STATUS MSG DISPLAYED DEBRIEFED CREW. CREW STATED AFTER TAKE OFF INTO CRUISE THEY NOTICED RIGHT ENG BLEED LIGHT OFF LIGHT ILLUMINATED. QRH WAS PERFORMED WITH NO HELP. SHORTLY AFTER RIGHT CTR FUEL PUMP LIGHT ILLUMINATED WITH NO OTHER ALERTS.
- [SDR QR9R2026032400002](https://openairdocs.org/sdr/QR9R2026032400002.md): Sensor · failed · Mar 24, 2026 · Bolkms BK117C2
  > #1 OVSP FAIL CAUTION ILLUMINATED AFTER RUN-UP. REMOVED AND REPLACED #1 ENG OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01. MOC C/W, NO FAULTS NOTED.
- [SDR 2026FA0000186](https://openairdocs.org/sdr/2026FA0000186.md): Quick Disconnect · defective · Mar 11, 2026 · N8024Q · Piper PA44180
  > WHILE IN FLIGHT THE LEFT ENGINE RPM READING BECAME ERRATIC, GOING FROM NORMAL TO PAST RED LINE QUICKLY BACK AND FORTH. PIC PRECAUTIONARY SHUT DOWN ENGINE AND RETURNED TO HOME FIELD. AFTER TROUBLESHOOTING IT WAS FOUND THE LEFT HAND TACH GENERATOR SENSOR PLASTIC
- [SDR QMLA2026012720006](https://openairdocs.org/sdr/QMLA2026012720006.md): Sensor · inoperative · Jan 27, 2026 · N984ME · Bolkms BK117C2
  > NUMBER 2 ENGINE OVSP FAIL DID NOT EXTINGUISH.
- [SDR QR9R2026011300001](https://openairdocs.org/sdr/QR9R2026011300001.md): Sensor · failed · Jan 13, 2026 · Bolkms BK117C2
  > #2 ENGINE OVERSPEED FAIL LIGHT CAME ON AT 0.2 HRS AT HOVER. A TEST FLIGHT EVAL FOUND #2 ENGINE OVERSPEED FAIL CAUTION LIGHT ILLUMINATED 6 MINUTES INTO THE GROUND RUN. REMOVED AND REPLACED OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01. MOC SUCCESSFULLY COMPLETE
- [SDR QR9R2025092400001](https://openairdocs.org/sdr/QR9R2025092400001.md): Sensor · failed · Sep 24, 2025 · Bolkms BK117C2
  > OVSP ON #1 ENGINE WOULD NOT GO OUT AFTER STARTING ENGINE. REMOVED AND REPLACED OVERSPEED SENSOR IAW 77-14-00-900-802. T/P MOC SUCCESSFULLY COMPLETED IAW 05-60-00, 6-1.
- [SDR QR9R2025080100001](https://openairdocs.org/sdr/QR9R2025080100001.md): Sensor · failed · Aug 1, 2025 · Bolkms BK117C2
  > #2 OVERSPEED FAIL CAUTION REPEATEDLY APPEARED DURING HOVER AND AT FLIGHT. REMOVED AND REPLACED #2 ENG OVERSPEED SENSOR IAW MM 77-14-00-802-A01. T/F SUCCESSFULLY COMPLETED IAW AMM 05-60-00, 6-12.
- [SDR QR9R2025072400002](https://openairdocs.org/sdr/QR9R2025072400002.md): Sensor · failed · Jul 24, 2025 · Bolkms BK117C2
  > OVERSPEED FAIL CAUTION ON #2 ENG CAME ON APPROXIMATELY 1 MINUTE AFTER START. DURING TROUBLESHOOTING, FOUND PINS 4 AND 5 OF THE #2 OVERSPEED SENSOR CONNECTOR TO READ OPEN. PINS 2 AND 3 READ CORRECTLY. REMOVED AND REPLACED MAGNETIC SENSOR IAW ENGINE MANUAL TASK
- [SDR QR9R2025072300002](https://openairdocs.org/sdr/QR9R2025072300002.md): Sensor · failed · Jul 23, 2025 · Bolkms BK117C2
  > ENG 1 OVSP FAIL CAUTION DURING HOVER TAXI. REMOVED AND REPLACED #1 ENGINE OVERSPEED SENSOR. COMPLETED OVERSPEED TEST IAW AMM 05-60-00, 6-1 AND 77-14-00-900-802-A01.
- [SDR 8HBR20250721071](https://openairdocs.org/sdr/8HBR20250721071.md): Shaft · defective · Jul 13, 2025 · Cessna
  > TACHOMETER CABLE ORDERED NEW FROM TEXTRON, PN: S2550-12, RECEIVED WITH METAL END OF TACHOMETER SHAFT THAT CONNECTS TO THE TACHOMETER, SEPARATING FROM RUBBER SHAFT THAT IT WAS SWAGED TO. METAL END CONNECTOR SHOWS INDICATIONS OF SWAGING, HOWEVER RUBBER DOES NOT,
- [SDR CALA2025070306203](https://openairdocs.org/sdr/CALA2025070306203.md): Sensor · faulted · Jun 30, 2025 · N57111 · Boeing 757224
  > AFTER TAKEOFF DURING INITIAL CLIMBS THE LEFT BLEED OFF LIGHT AND ASSOCIATED PACK OFF LIGHT ILLUMINATED. WE FOLLOWED THE QRH PROCEDURE AND WERE UNABLE TO RESET IT. AFTER CONTACTING TOMC A SECOND ATTEMPT WAS MADE AT 1.22 EPR AND STILL NOT RESET. REFERENCE: 36-10
- [SDR VGCA20250513001](https://openairdocs.org/sdr/VGCA20250513001.md): Tach Generator · stripped · May 13, 2025 · N391FL · Cvac STC3405800
  > RIGHT ENGINE RPM SPOOLED DOWN IN FLIGHT. ENGINE WAS SHUTDOWN. SUBSEQUENT INSPECTION FOUND THAT TACH GENERATOR DRIVE SHAFT WAS SPRIPPED
- [SDR QR9R2025050900001](https://openairdocs.org/sdr/QR9R2025050900001.md): Sensor · failed · May 9, 2025 · Bolkms BK117C2
  > #1 ENGINE OVERSPEED FAIL CAUTION CAME ON IN FLIGHT. DURING TROUBLESHOOTING, FOUND OVERSPEED SENSOR BAD. FAILS TESTS IN ENGINE MANUAL 77-14-00-750-801-A01. COIL READS OPEN ON PINS 4 AND 5. REMOVED AND REPLACED OVERSPEED SENSOR IAW ENGINE MANUAL TASK 77-14-00-75
- [SDR 37CA2025/02/2601](https://openairdocs.org/sdr/37CA2025%2F02%2F2601.md): Tach Generator · defective · Feb 20, 2025 · N354LL · Agusta AW119MKII
  > N1 TACHOMETER GENERATOR ERRATIC READINGS DURING START UP CAUSING A MIS-COMPARE P CAUTION MESSAGE.
- [SDR CALA2025021302309](https://openairdocs.org/sdr/CALA2025021302309.md): Tachometer · faulted · Feb 9, 2025 · N57869 · Boeing 75733N
  > N1 OVERSPEED INDICATION NUMBER 2 ENGINE N1 OVERSPEED BEGAN DURING CLIMB AT 15,000FT. DURING APPROACH BACK EPR WENT BLANK. PILOTS REDUCED THROTTLE TO MATCH N1. AT DECENT ALL PERIMETERS WERE WITHIN LIMITS.
- [SDR QR9R2025011700002](https://openairdocs.org/sdr/QR9R2025011700002.md): Sensor · failed · Jan 17, 2025 · Bolkms BK117C2
  > #2 OVSP FAIL CAUTION ILLUMINATED AND WOULD NOT EXTINGUISH WITH AVIONICS RESETTING CB OR DOING HARD RESET. REMOVED AND REPLACED #2 ENGINE MAGNETIC SENSOR IAW ENG MANUAL 77-14-00-900-802-A01.
- [SDR QR9R2025011500001](https://openairdocs.org/sdr/QR9R2025011500001.md): Sensor · intermittent · Jan 15, 2025 · Bolkms BK117C2
  > #2 ENG OVSP FAIL LIGHT ILLUMINATED IN FLIGHT. A MAINTENANCE TEST FLIGHT VERIFIED #2 ENG OVSP FAIL LIGHT WAS INTERMITTENT. CAUTION LIGHT CAME ON APPROXIMATELY 2 MINUTES INTO FLIGHT AND THEN WENT OUT DURING HOVER TO PARKING. REMOVED AND REPLACED DOUBLE SENSOR IA
- [SDR ABXA20241229274](https://openairdocs.org/sdr/ABXA20241229274.md): Circuit Card · malfunctioned · Dec 29, 2024 · N1499A · Boeing 767328
  > AFTER PUSHBACK, STATUS MSG L ENG SPEED CARD AC RETURNED TO GATE (BTB)AND MTX GROUNDED ACMTX PERFORMED STATUS MSG ERASE PROCEDURES IAW B767 AMM 31-41-00, NO MSG AT THIS TIME.MTX RETURNED AC TO SERVICE.
- [SDR QR9R2024111400002](https://openairdocs.org/sdr/QR9R2024111400002.md): Sensor · faulted · Nov 14, 2024 · Bolkms BK117C2
  > DURING FLIGHT, #1 ENG OVERSPEED FAILURE CAUTION ILLUMINATED ON THE CAD AND WOULD NOT GO OUT. DURING TROUBLESHOOTING, FOUND PINS 2-3 READ OPEN ON CONTINUITY TEST. SHOULD READ 110 OHMS, +/- 15 OHMS. REMOVED AND REPLACED OVERSPEED SENSOR IAW ENGINE MANUAL 77-14-0
- [SDR QR9R2024101800001](https://openairdocs.org/sdr/QR9R2024101800001.md): Sensor · failed · Oct 18, 2024 · Bolkms BK117C2
  > OVSP FAIL LIGHT DID NOT EXTINGUISH UPON STARTING. REMOVED AND REPLACED #2 ENGINE OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01.
- [SDR QR9R2024101000002](https://openairdocs.org/sdr/QR9R2024101000002.md): Sensor · faulted · Oct 10, 2024 · Bolkms BK117C2
  > IN FLIGHT, #2 ENGINE OVERSPEED FAIL LIGHT ILLUMINATED. REMOVED AND REPLACED OVERSPEED SENSOR IAW ENG MANUAL 77-14-00-900-802-A01. MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2024091300004](https://openairdocs.org/sdr/QR9R2024091300004.md): Sensor · warning light · Sep 13, 2024 · Bolkms BK117C2
  > #2 OVSP FAIL CAUTION LIGHT ILLUMINATED DURING HOVER FLIGHT AND WAS ON AND OFF INTERMITTENTLY WITH BOTH TWIST GRIPS IN THE FLIGHT POSITION AND AIRSPEED LESS THAN 5 KIAS. REMOVED AND REPLACED DOUBLE SENSOR IAW ARRIEL 1 E2 77-14-00-900-802-A01. T/P MOC SUCCESSFUL
- [SDR QR9R2024091300003](https://openairdocs.org/sdr/QR9R2024091300003.md): Sensor · failed · Sep 13, 2024 · Bolkms BK117C2
  > #1 ENG OVERSPEED FAIL CAME ON DURING HOVER TAXI. A TEST FLIGHT EVAL FOUND THAT AFTER 5 ATTEMPTS ON RESETTING #1 ENGINE OVERSPEED LIGHT CB, LIGHT WOULD NOT EXTINGUISH. REMOVED AND REPLACED OVERSPEED SENSOR IAW EMM 77-14-00-900-802-A01. MOC COMPLETED OK.
- [SDR QR9R2024080900003](https://openairdocs.org/sdr/QR9R2024080900003.md): Indicator · inoperative · Aug 9, 2024 · Bolkms BK117C2
  > DURING RUN-UP, NR INOP ON TRIPLE TACH. REMOVED AND REPLACED TRIPLE INDICATOR IAW AMM 62-41-00, 4-3. MOC SUCCESSFULLY COMPLETED.
- [SDR QR9R2024080800001](https://openairdocs.org/sdr/QR9R2024080800001.md): Tachometer · fluctuates · Aug 8, 2024 · Bolkms BK117C2
  > N2 NEEDLE #2 ENGINE KEEPS FLUCTUATING BETWEEN 0 AND FLIGHT DURING FLIGHT. REMOVED AND REPLACED TRIPLE INDICATOR RPM; MOC SUCCESSFULLY COMPLETED IAW AMM 05-60-00, 6-12.
- [SDR CALA2024080700383](https://openairdocs.org/sdr/CALA2024080700383.md): Sensor · faulty · Aug 5, 2024 · N17139 · Boeing 757224
  > INFLIGHT RT ENGINE BLEED OFF. RT CTR FUEL PUMP INOP. RT ENGINE N3 INDICATING 0 REMOVED AND REPLACED E2 TACHOMETER REF 77-12-02 AND FIM 77-12-805 PARTS USED: 19-7712-9-9001,QTY:1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1928849 SN OFF 7761. INFLIGHT RT EN
- [SDR NACA2024080400001](https://openairdocs.org/sdr/NACA2024080400001.md): Circuit Card · failed · Aug 4, 2024 · N566NC · Boeing 7673BG
  > L ENGINE SPEED CARD. REMOVED AND REPLACED LEFT ENGINE SPEED CARD IAW AMM 77-12-01 TEST REPORTED OK
- [SDR FDEA202407251050](https://openairdocs.org/sdr/FDEA202407251050.md): Tach Generator · failed · Jul 25, 2024 · N944FD · Boeing 7572G5
  > AFTER TAKEOFF, RECEIVED L ENG BLEED OFF EICAS RAN QRH 2.1.14 LEVELED AT FL360. NOTICED CABIN ALT AT 8000 WHILE 5 MIN CABIN ALT AT 9500 DESCENDED DOWN TO LOWER ALT IN DESCENT RECEIVED CABIN ALT HIGH MASTER WARNING AND EICAS MSG. RAN QRC THEN QRH 2.1.1 CONTI
- [SDR ABXA20240619120](https://openairdocs.org/sdr/ABXA20240619120.md): Sensor · malfunctioned · Jun 19, 2024 · N390CM · Boeing 767338
  > LEFT ENG SPEED CARD MESSAGE DURING TAXI. AC RETUREND TO GATE MAINTENANCE GROUNDED AC AND RANG OUT N2 SPEED SENSOR IAW WDM 73-21-18 AND 77-12-12 FOUND LEFT T41 N2 SPEED SENSOR SHORTED TO GROUND INTERNALLY. REMOVED AND REPLACED SAME IAW B767 AMM 77-12-02. OPS, B
- [SDR CALA2024030800663](https://openairdocs.org/sdr/CALA2024030800663.md): Sensor · faulty · Mar 5, 2024 · N31412 · Boeing 737924
  > CLIMBING THROUGH 13000 FELT SHARP BUMP THEN VIBE IN AIRFRAME..EGT SPIKED AND N1 ROLLBACK INCREASED NORMALLY, HOWEVER, NOTICEABLE VIBRATIONS RETURNED AND FELT THROUGH CABIN. DURING FA DEBRIEF, PAX NOTICED SPARKS/SMALL FLAMES FROM E1 EXHAUST. DEBRIEF CREW: NORMA
- [SDR QR9R2024022000002](https://openairdocs.org/sdr/QR9R2024022000002.md): Tachometer · failed · Feb 20, 2024 · Bolkms BK117C2
  > UPON STARTING #1 ENGINE, ROTOR RPM NEEDLE MOVED UP TO APPROXIMATELY 97% AND STUCK IN THAT POSITION. N2 AND ROTOR RPM NEEDLES WERE NOT MATCHED. ABORT PROCEDURES WERE CONDUCTED. REMOVED AND REPLACED TRIPLE INDICATOR RPM (NVIS) IAW 62-41-00, 4-3.
- [SDR QR9R2023102300001](https://openairdocs.org/sdr/QR9R2023102300001.md): Tachometer · failed · Oct 23, 2023 · Bolkms BK117C2
  > TRIPLE TACH WENT TO ZERO DURING FLIGHT. ALL OTHER INDICATIONS HAD RTR AND N2S WITHIN THE NORMAL OPERATING RANGE. REMOVED AND REPLACED TRIPLE INDICATOR RPM IAW 77-14-00, 4-1; TESTFLIGHT SUCCESSFULLY COMPLETED.
- [SDR YV3R2023051000565](https://openairdocs.org/sdr/YV3R2023051000565.md): Controller · defective · Apr 26, 2023 · Robsin R22BETAII
  > CUSTOMER REPORTED GOVERNOR CONTROLLER ASSEMBLY P/N: B286-2 WAS DEFECTIVE.
- [SDR YV3R2023042700563](https://openairdocs.org/sdr/YV3R2023042700563.md): Controller · defective · Apr 20, 2023 · N276RC · Robsin R44RAVENII
  > CUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 OVER SPEEDS ENGINE AND ROTOR SYSTEM.
- [SDR DALA2023041803076](https://openairdocs.org/sdr/DALA2023041803076.md): Unknown · unknown · Apr 15, 2023 · N705TW · Boeing 757231
  > SHIP 6811 - ATB - RETURNED TO JFK DUE TO RIGHT BLEED OFF WITH ASSOCIATED RIGHT PACK OFF MESSAGE. ALSO HAD RIGHT CENTER FUEL PUMP INOP. CORRECTIVE ACTION: REMOVED AND REPLACED N2 SPEED CARD AND RIGHT ENGINE PMA ROTOR/STATOR ASSY.
- [SDR YV3R2023031400551](https://openairdocs.org/sdr/YV3R2023031400551.md): Controller · defective · Jan 4, 2023 · Robsin R44RAVENII
  > CUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 GIVING A HIGH READING OF MORE THAN 101% RPM.
- [SDR YV3R2023031400549](https://openairdocs.org/sdr/YV3R2023031400549.md): Controller · malfunctioned · Dec 15, 2022 · Robsin R44RAVENII
  > CUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 MALFUNCTIONED.
- [SDR 2022F00516](https://openairdocs.org/sdr/2022F00516.md): Tach Generator · seized · Dec 13, 2022 · N157SG · Cessna 340CESSNA
  > THE LH TACH GENERATOR SEIZED INTERNALLY CAUSING THE LH TACHOMETER INDICATION TO FALL TO ZERO.
- [SDR HALA2022121300309](https://openairdocs.org/sdr/HALA2022121300309.md): Sensor · faulted · Dec 12, 2022 · N214HA · Airbus A321271N
  > ECAM IN AIR "ENG 2 FADEC SYS FAULT" PER FPR ENG 2B-0452-N2 SPEED SENSOR FAIL. PERFORMED T/S IAWTSM 77-11-00-810-812-A. DURING FAULT CONFIRM IAW CHART NO ASSOCIATED MESSAGES. DURING ENG START UP ECAM WARNING AF ABORTED START DUE TO BOWED MOTOR OVERSPEED. PER
- [SDR QR9R2022120800001](https://openairdocs.org/sdr/QR9R2022120800001.md): Tachometer · faulty · Dec 8, 2022 · Bolkms BK117C2
  > ABORTED TAKE-OFF DUE TO ROTOR TACH FAILURE. ROTOR NEEDLE DID NOT MOVE ON FIRST ENGINE START. UPON TROUBLESHOOTING, NR SPEED SYSTEM FOUND TRIPLE TACH R NEEDLE FAILS TO SELF-TEST, NEEDLE IS STUCK. REPLACED TRIPLE TACH INDICATOR IAW AMM 62-41-00, 4-2. MOC SUCCESS
- [SDR QR9R20220912001](https://openairdocs.org/sdr/QR9R20220912001.md): Sensor · faulted · Sep 12, 2022 · Bolkms BK117C2
  > #2 OVERSPEED FAIL CAUTION ILLUMINATED DURING RUN-UP. REMOVED AND REPLACED ENG #2 OVERSPEED SENSOR I/A/W 77-14-00-900-802-A01. TEST FLIGHT SUCCESSFULLY COMPLETED IAW AMM 05-60-00, 6-12.
- [SDR QR9R20220831003](https://openairdocs.org/sdr/QR9R20220831003.md): None · illuminated · Aug 31, 2022 · Bolkms BK117C2
  > OVERSPEED FAIL LIGHT ILLUMINATED DURING FLIGHT ON #2 ENGINE. DURING LANDING, #2 ENGINE OIL PRESSURE VACILLATED BETWEEN 05 TO 1.9. A TEST FLIGHT EVALUATION REVEALED #2 OVERSPEED FAIL CAUTION ADVISORY WOULD NOT GO OUT DURING START UP. REPLACED # 2 ENGINE OVERSPE

Next page: https://openairdocs.org/jasc/7714/reports.md?page=2

## 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 jasc_code = '7714'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/jasc/7714/reports

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