JASC 7334

Service difficulty reports · 198

Reports filed under 7334 · Fuel Pressure Sensor, 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 = '7334'
  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.

SDR AALA202605205803Pressure Switch · faultyAIRCRAFT WAS NOT GROUNDED: FUEL FILTER BYPASS CAUTION LIGHT AFTER TAKE OFF. LIGHT IS INTERMITTENT. REMOVED AND REPLACE NUMBER 2 ENGINE FUEL FILTER (AALA202605209972), PER MM 73-11-02. ALSO, REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH (AALA20May 15, 2026 · N901NN · Boeing 737823SDR AALA202604071673Pressure Switch · faultyAIRCRAFT WAS GROUNDED: FUEL FILTER BYPASS LIGHT ON NUMBER 2 ENGINE CAME ON AFTER BOTH ENGINES STARTED AND STABILIZED. REMOVED AND AREPLACED NUMBER 2 ENGINE FUEL FILTER (AALA202604075355), PER MCM CARD 08L40073004. ALSO, REMOVED AND REPLACED FUEL DIFFERENTIAL PApr 6, 2026 · N826NN · Boeing 737823SDR HYIA20260327009Sensor · defectivePILOT REPORTED ON CLIMB RIGHT ENGINE SURGING FOLLOWED BY RED LOW FUEL PRESSURE CAS MESSAGE WITH UNCONTROLLABLE YAW, THE PILOT FEATHERED THE PROP AND RETURNED TO LAND. MAINTENANCE INSPECTED AND FOUND THE FUEL PRESSURE SENSOR CAUSING THE ISSUE. THE SENSOR WAS REMar 20, 2026 · N843CA · Tecnam P2012SDR CALA2026020313530Pressure Switch · faultedLEFT FUEL FILTER BYPASS LIGHT ILLUMINATED. PERFORMED T/S IAW FIM 73-05 TASK 801, FOUND NR 1 ENG FUEL FILTER DIFFERENTIAL PRESSURE SWITCH (FFDPS) DEFECTIVE (INTERNAL SHORT), R & R THE NR 1 ENG FFDPS IAW AMM 73-43-01, REPLACED NR 1 ENG FUEL FILTER IAW AMM 73-1Jan 30, 2026 · N37474 · Boeing 737924ERSDR AALA202601060136Pressure Switch · faultyAIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: AFTER TAKEOFF RIGHT FUEL BYPASS LIGHT ILLUMINATED, FUEL WAS ONLY BEING FEED FROM THR RIGHT WING FUEL TANK. AIRCRAFT AIR INTERRUPTED BACK TO AND LANDED SAFELY AT CVG. REMOVED AND REPLACED FUEL FILTER Jan 3, 2026 · N937AN · Boeing 737823SDR DALA2025122309342Pressure Switch · faultedATB - RIGHT ENGINE SYSTEM FAIL MESSAGE ALONG WITH A RIGHT ENGINE FUEL FILTER MESSAGE ON CLIMB OUT. INSPECTED FILTERS WITH NO DEBRIS NOTED. BOTH HIGH AND LOW PRESSURE FILTERS REPLACED. FILTER DIFFERENTIAL PRESSURE SWITCH REPLACED. HIGH POWER RUN PERFORMED, OPDec 20, 2025 · N940AT · Boeing 717200SDR AALA202509173475Pressure Switch · cloggedAIRCRAFT WAS GROUNDED: LEFT FUEL FILTER BYPASS LIGHT ILLUMINATED FOR APPROX 4 MINUTES. REMOVED AND REPLACED FUEL FILTER (AALA202509173276) AND FUEL PRESSURE SWITCH (AALA202509173475). PER AMM 73-11-02 AND AMM 73-34-01. LEAK AND OPERATIONAL CHECKS GOOD.Sep 16, 2025 · N879NN · Boeing 737823SDR AALA202509024877Pressure Switch · cloggedAIRCRAFT WAS NOT GROUNDED: ENGINE 2 FILTER BYPASS LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF. REPLACED NUMBER 2 ENGINE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH (AALA202509024877), PER AMM 73-34-01. ALSO, REPLACED NUMBER 2 ENGINE FUEL FILTER (AALA202509023546). PEAug 29, 2025 · N897NN · Boeing 737823SDR ASAA2023010641477Pressure Switch · faulty#2 ENG FUEL FILTER BYPASS LIGHT. GROUNDED - YES. REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF B737-900 AMM 73-34-01.Jan 6, 2023 · N431AS · Boeing 737990ERSDR DALA2022092306277None · noneSHIP 199- ATB -RIGHT ENGINE FUEL FILTER EICAS MESSAGE. FLIGHT CREW CHOICE TO RETURN TO JFK DUE TO QRH STATING ENGINE MAY FLAME OUT OR OPERATE ERRATICALLY WITH THIS MESSAGE. CORRECTIVE ACTION: REPLACED FUEL FILTER PER B767-300 AMM 73-34. REPLACED FUEL PRESS SWISep 21, 2022 · N199DN · Boeing 767332SDR CALA2022071301727Sensor · failedRIGHT ENG FUEL FLTR EICAS. AHM DID NOT EVEN PICK UP . FILTER MSG LATCHED. NOT ACTIVE FOUND DIFFERENTIAL PRESSURE SWITCH S73001 PIN "A" SHORT TO ERASED MSG POWERED EEC PICKED UP MSG 73-60922. ACTIVE WHEN EEC GROUND 2 OHMS. NEEDS NEW SWITCH WDM 73-34-71-1 POWERJul 13, 2022 · N769UA · Boeing 777222SDR DALA2022062104334Switch · warning lightSHIP 3835 - ATB - AIRCRAFT PERFORMED AN AIR TURNBACK TO DTW DUE TO RIGHT ENGINE FUEL FILTER BYPASS LIGHT. CORRECTIVE ACTION: REPLACED FUEL DIFFERENTIAL PRESSURE SWITCH. OPS AND LEAD TEST OK PER B737 AMM 73-34.Jun 18, 2022 · N835DN · Boeing 737932ERSDR 2022F00275Pressure Switch · failedENG FUEL FILTER R EICAS MESSAGE ILLUMINATED 45 MINUTES AFTER DEPARTURE LATER WHEN THRUST WAS REDUCED MASSAGE BLANKED WHEN THRUST LEVERS ADVANCED MESSAGE RETURNED. CORRECTIVE ACTION: FOLLOWED FIM 73-11 TASK 801, R & R FUEL FILTER DIFFERENTIAL PRESSURE SWITCJun 3, 2022 · N846AX · Boeing 777SDR 2022F00276Pressure Switch · failedENG FUEL FILTER R EICAS MESSAGE ILLUMINATED 45 MINUTES AFTER DEPARTURE LATER WHEN THRUST WAS REDUCED MASSAGE BLANKED WHEN THRUST LEVERS ADVANCED MESSAGE RETURNED. CORRECTIVE ACTION: FOLLOWED FIM 73-11 TASK 801, R & R FUEL FILTER DIFFERENTIAL PRESSURE SWITCJun 3, 2022 · N846AX · Boeing 777SDR NACA2022022600002Pressure Switch · unknown#2 FUEL FILTER BYPASS WARNING SYSTEM FUNCTIONAL CHECK FAILED, WHILE APPLYING AIR SOURCE TO FUEL FILTER DIFFERENTIAL SWITCH INLET, EICAS MESSAGE "L/R FUEL FILTER" DOES NOT SHOW. REMOVED AND REPLACED RIGHT ENGINE FUEL PRESSURE SWITCH IAW B767 73-34-01 OPS AND LEFeb 26, 2022 · N379CX · Boeing 767323SDR FXTA2020003109001Pressure Sensor · failedLOW FUEL PRESSURE CAS MESSAGE. SENSOR ON ENGINE FUEL/OIL HEAT EXCHANGER FAILED.Mar 9, 2020 · N241BA · Cessna 208BSDR AALA2020031279015Pressure Switch · defectiveAIRCRAFT WAS GROUNDED: RIGHT ENGINE FUEL FILTER BYPASS ILLUMINATED DURING INITIAL CLIMB. LIGHT EXTINGUISHED DURING DECENT AND REMAINED OUT. REPLACED FUEL FILTER (AALA202003079014) AND DIFFERENTIAL PRESSURE SWITCH (AALA202003079015) PER AMM 73-34-01 AND ACCOMPMar 6, 2020 · N932AN · Boeing 737823SDR FXTA2020030326001Pressure Switch · failedLOW FUEL PRESSURE CAS MESSAGE. SENSOR ON ENGINE FUEL/OIL HEAT EXCHANGER FAILED.Feb 26, 2020 · N952BA · Cessna 208BSDR P5CA2020010800005Packing · damagedFUEL MINOR SEEPING FROM ENG 2 FUEL FILTER DIFF PRESSURE SWITCH JAM NUT.(<P>REMOVED AND REPLACED JAM NUT PACKING. OPS TEST GOOD AND NO LEAK FOUND IAW AMM 73-34-01.</P>)Jan 7, 2020 · N643GT · Boeing 7673JHFSDR UIEA2019091205485Pressure Switch · leaking#2 ENGINE FUEL PRESSURE SWITCH IS LEAKING FROM FWD FITTING LOCATED ABOVE FUEL FILTER. REMOVED AND REPLACED #2 ENGINE FUEL PRESSURE SWITCH PACKING, AND RE-INSTALLED #2 ENG FUEL PRESSURE SWITCH IAW AMM 73-34-01. PENDING LEAK CHECK. PERFORMED LEAK CHECK IAW AMM 7Sep 11, 2019 · N641GT · Boeing 76738ESDR SWAA2019072235145Bypass Switch · faultyAIR TURNBACK, #2 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED. R&R FUEL FILTER BYPASS SWITCH PER AMM.Jul 20, 2019 · N205WN · Boeing 7377H4SDR ASAA2019071230056Pressure Switch · failedON TAXI IN #1 ENG FUEL FILTER BYPASS LIGHT ILLUMINATED AND STAYED ON TILL ENG SHUTDOWN. GROUNDED - YES. REFERENCE AMM 73-11-02 FOR REMOVAL OF DRAIN PLUG & FUEL FILTER REMOVAL. REMOVED AND REPLACED #1 ENG FUEL FILTER AMM REF. 73-11-02-000-801-F00 & 73-11-02-400Jul 12, 2019 · N562AS · Boeing 737890SDR ASAA2019071130055Pressure Switch · failedRIGHT FUEL FILTER BYPASS ON CLIMBOUT FROM AIRPORT. LIGHT EXTINGUISHED AFTER SHUT DOWN. GROUNDED - YES. REMOVED AND REPLACED FFDPS REF AMM 73-34-01. OPS CHECK NORMAL. PERFORMED EEC TEST AMM TASK 73-21-00-700-804-F00. TEST PASS. NO DEFECTS NOTED. PERFORMED IDLE Jul 11, 2019 · N530AS · Boeing 737890SDR UIEA2019032203632Pressure Switch · failedNR 1 ENG FUEL FILTER DIFFERENTIAL PRESS SWITCH FAILED TO OPS CK ON TASK CARD A-73-306-01-1(<P>R/R FUEL FILTER DIFFERENTIAL PRESS SWITCH THEN RETEST, TROUBLESHOOT AS REQUIRED IAW AMM 73-34-01.</P>)Mar 21, 2019 · N1997A · Boeing 76733ASDR ASAA2019031128579Pressure Switch · failedSTARTED NR 2 ENGINE, ABOUT 1 MIN AFTER START GOT A FILTER BYPASS LIGHT. LET IDLE FOR 2-3 MINUTES WHILE DOING CHECKLIST. NO CHANGE AS WE TAXIED BACK TO THE GATE PUSHING THE POWER UP ON NR 2 ENGINE THE LIGHT WENT OUT AND DID NOT RETURN. GROUNDED - YES. FOUND NR Mar 11, 2019 · N558AS · Boeing 737890SDR ASAA2019030528506Pressure Sensor · failedENGINE 1 FUEL STRAINER SENSOR FAULT. GROUNDED - YES. ENGINE NR 1 FUEL STRAINER DIFFERENTIAL PRESSURE SENSOR REMOVED AND REPLACED PER AMM 73-34-10. OPERATION TEST PER AMM 73-34-10-700-050A COMPLETED. NO FAULTS. AIRCRAFT OK FOR SERVICE.Mar 5, 2019 · N924VA · Airbus A321253NSDR FDEA201902130408Pressure Switch · failedL ENGINE FUEL FILTER EICAS MESSAGE CAME ON DURING CLIMB. EICAS MESSAGE CAME ON AND OFF SEVERAL TIMES AND REMAINED ON THROUGHOUT. MOST OFF THE FLIGHT. LT ENGINE VIBRATED AND VIBRATION INCREASED DURING DESCENT COMPLIED WITH NON-NORMAL AND NORMAL CHECKLISTS DECLFeb 13, 2019 · N108FE · Boeing 7673S2FSDR ASAA2019012527941Pressure Switch · failedFUEL "FILTER BYPASS" LIGHT ILLUMINATED NR 1 ENGINE ON LANDING ROLLOUT. GROUNDED - YES. COMPLETED FIM 73-05 TASK 801, 73-21071 FAULT CODE SHOWN. REF AMM 73-34-01 FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REMOVED AND REPLACED. PERFORMED FF DPS INSTALLATION TEST NJan 25, 2019 · N471AS · Boeing 737990ERSDR FXTA20190104001Pressure Switch · failedLOW FUEL PRESSURE CASS MESSAGE. SENSOR ON ENGINE FUEL OIL HEAT EXCHANGER FAILED.Jan 4, 2019 · N404BA · Cessna 208BSDR DXTA2019010401864Bypass Switch · faultyCLIMBING THROUGH 500 FEET, THE RIGHT FUEL FILTER BYPASS LIGHT CAME ON. **SUPPLEMENTAL INFORMATION: INSTALLED NEW FUEL FILTER IMPENDING BYPASS SWITCH & REMOVED & INSPECTED FUEL FILTER - NO DEFECTS NOTED. WORK DONE IAW PWC 306D1 73-10-03. OPERATION CHK GOODJan 4, 2019 · N567QS · Cessna 680ASDR ASAA2018121527435Pressure Switch · failedAFTER ENGINE START AT FIRST APPLICATION OF TAXI THRUST THE NR 2 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED FOR APPROX 30 SECONDS THEN EXTINGUISHED. THE LIGHT DID NOT COME ON AGAIN WHILE TAXING TO ANOTHER GATE. GROUNDED - YES. EEC BITE SHOWS FAULT CODE 73-3107Dec 15, 2018 · N559AS · Boeing 737890SDR FDEA201811233356Pressure Switch · inoperativeNUMBER 1 ENGINE FUEL CLOG LIGHT WAS OUT AT 70% N1 PART 23. C/W MEL PROCEDURES R&R ENGINE FUEL FILTER IAW AMM 73-12-02-04 ONCE EACH FLIGHT DAY. REPLACED NR 1 ENG DIFFERENTIAL PRESSURE SWITCH, MFR P/N 21SN04-333, S/N CFL1014B AS REQ. REF AMM 73-34-11 AND TSM 73-Nov 23, 2018 · N667FE · Airbus A300F4605RSDR ASAA2018112227085Pressure Switch · failedNR 1 FUEL FILTER BYPASS LIGHT ILLUMINATED ON TAXI IN. GROUNDED - YES. REMOVED AND REPLACED FUEL FILTER DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01. PERFORMED EEC TEST IAW AMM 73-21-00. NO FAULTS FOUND. PERFORMED LEAK CHECK NO LEAKS NOTED.Nov 22, 2018 · N568AS · Boeing 737890SDR CA181015010Pressure Switch · failed(CAN) FUEL FAULT ENG INLET PRESS SW INOPERABLE (RETURN TO GATE) INFO MESSAGE DURING ENGINE START: 28 FUEL FAULT ENG INLET PRESS SW INOPERABLE FOLLOWED BY CAUTION MESSAGE: RT ENG FUEL LO PRESS DURING TAXI-OUT. FAULT MESSAGE: RT ENG FUEL PRESSURE SWITCH (S70) FOct 12, 2018 · Airbus BD5001A11SDR ASAA2018101026452Pressure Switch · failedNR 1 FUEL FILTER BYPASS LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED FIM 73-05 TASK 801 ON #1 ENGINE. REMOVED AND REPLACED FUEL DIFFERENTIAL PRESSURE SWITCH REF AMM 73-34-01. OPS & LEAK CHECK GOOD.Oct 10, 2018 · N478AS · Boeing 737990ERSDR P5CA2018091100281Pressure Switch · failedFOUND NR 1 ENG FUEL FILTER DIFFERENTIAL PRESSURE SWITCH FUNCTION TEST FAIL. IAW AMM 73-34-01-024-001 REV 125 AND AMM 73-34-01-424-008 REV 125 REPLACE NR 1 ENG FUEL FILTER DIFFERENTIAL PRESSURE SWITCH WITH NEW PARTS. IAW AMM 71-00-00-712-168 REV 125 NR 1 ENG FUSep 7, 2018 · N647GT · Boeing 767306SDR P5CA2018072600158Transmitter · defectiveRT ENG FUEL PRESSURE INDICATOR ALWAYS SHOWS 200. IAW AMM73-33-01-002-001 AND AMM 73-33-01-402-007 REV124 PRL ENG NR 2 FUEL PRESSURE TRANSMITTER IAW AMM 71-00-00795-228 REV124. PFM TEST AND ALL CHK NML.Jul 25, 2018 · N643GT · Boeing 7673JHFSDR FDEA2018071651715Pressure Switch · defectiveLT ENG FUEL FILTER ICAS ALERT CAME ON TWICE AT 25,000 FEET LEAVING MEM. REMOVED AND INSPECTED LT ENG FUEL FILTER PER AMM REF 73-11-02-6. NO CONTAMINATION FOUND. PER FIM REF 73-11 FAULT TREE 803, THE FUEL FILTER DIFFERENTIAL PRESSURE SWITCH SHOULD BE REPLACED. Jul 15, 2018 · N131FE · Boeing 7673S2FSDR ASAA2018071625410Pressure Switch · defectiveNR 2 ENGINE HAS PREVIOUS REPORTS OF FUEL FILTER BYPASS LIGHT ILLUMINATION ALONG WITH FUEL FILTER SIGNAL DISAGREE FAULTS. GROUNDED - YES. REPLACED FUEL DIFF PRESSURE SWITCH ON RT ENGINE REF AMM 73-34-01/401. REPLACED J8 HARNESS PER AMM 73-21-06 OPS CHKS GOOD NJul 11, 2018 · N587AS · Boeing 737890SDR FDEA201712133380Switch · failedON CLIMB OUT FROM KFAR GOT FUEL CLOG LIGHT NR 2 ENG PASSING 10,000 FT. COMPLIED WITH ECAM AND REDUCED POWER. FUEL CLOG LIGHT WENT OUT AT A LOW POWER SETTING. ADVANCED POWER AND CLOG LIGHT CAME BACK ON. R&R NR 2 ENG FUEL FILTER IAW MM 73-12-02-04, FILETR RDec 13, 2017 · N659FE · Airbus A300B4605RSDR UIEA2017080701433O-Ring · leakingAFTER FUEL FILTER CHANGE FOUND FUEL PRESSURE SWITCH TO HAVE LEAK AT O-RING. REMOVED AND REPLACED O-RING ON FUEL PRESSURE SWITCH IAW AMM 73-34-01. LEAK CHECK GOOD FOR PRESSURE SWITCH. OPS CHECK GOOD LEAK CHECK GOOD FOR FUEL FILTER CHANGE LOG PAGE 894584 ITEM M5Aug 7, 2017 · N1709A · Boeing 767375SDR AALA201707139029Pressure Switch · faultyAIRCRAFT WAS NOT GROUNDED. LEFT ENGINE INLET FUEL PRESSURE LOW LIGHT FLICKERS CONTINUOUSLY IN FLIGHT WITH FULL MAIN FUEL TANKS. REMOVED AND REPLACED THE LOW FUEL INLET PRESSURE CAUTION SWITCH PER AMM 73-33-01. OPERATIONAL CHECK GOOD.Jul 11, 2017 · N555AN · Doug DC982SDR AALA201705169072Pressure Switch · unreliableAIRCRAFT WAS NOT GROUNDED. RIGHT ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED DURING INITIAL CLIMB AND SUBSEQUENT CLIMBS. ACCOMPLISHED ELECTRONIC ENGINE CONTROL BITE TEST IAW AMM 73-21-00 AND WORKCARD 4907, NO FAULTS FOUND. REMOVED AND REPLACED RIGHT ENGINE May 15, 2017 · N914AN · Boeing 737823SDR CALA2017050501237Pressure Switch · faultyAT TOP OF CRUISE GOT A L ENG FUEL FILTER EICAS. EMERGENCY DECLARED. T/S PER FIM 73-34 FAULT TREE 803. CHANGED NR 1 ENG FUEL FILTER REF AMM 73-11-02. LEAK CHK GOOD. MSG DID NOT RETURN ON IDLE RUN. R&R NR 1 ENG FUEL PUMP DIFFERENTIAL PRESSURE SWITCH PER AMM 73-3May 2, 2017 · N644UA · Boeing 767322SDR AALA201705039013Pressure Switch · unserviceableAIRCRAFT WAS GROUNDED. FLIGHT RETURNED TO PHL ACCOUNT DUEL FUEL FILTER CLOG INDICATION. CREW DECLARED EMERGENCY AND LANDED OVERWEIGHT WITHOUT INCIDENT. REPLACED ENGINE 2 FUEL FILTER DIFFERENTIAL PRESSURE SWITCH. ALSO SEE AALA201705039011, AALA201705039012 & AApr 30, 2017 · N285AY · Airbus A330243SDR AALA201705039011Pressure Switch · unserviceableAIRCRAFT WAS GROUNDED. FLIGHT RETURNED TO PHL ACCOUNT DUEL FUEL FILTER CLOG INDICATION. CREW DECLARED EMERGENCY AND LANDED OVERWEIGHT WITHOUT INCIDENT. REPLACED ENGINE 1 FUEL FILTER DIFFERENTIAL PRESSURE SWITCH. ALSO SEE AALA201705039012, AALA201705039013 & AApr 30, 2017 · N285AY · Airbus A330243SDR CALA2017031300587Pressure Switch · faultyRIGHT FUEL FILTER BYPASS LIGHT IN FLIGHT. EMERGENCY DECLARED. PERFORMED FUEL FILTER REPLACED, CHECKED FOR LEAKS, NO LEAK FOUND. REMOVED AND REPLACED NR 2 ENGINE DIFF PRESSURE SWITCH IAW AMM 73- 34-01.Mar 13, 2017 · N38424 · Boeing 737924ERSDR AALA201611099003Pressure Switch · faultyAIRCRAFT WAS NOT GROUNDED. ENGINE NR 2 FUEL FILTER CLOG CAUTION ON ECAM E/WD. REPLACED FUEL FILTER DIFFERENTIAL PRESS SWITCH PER AMM 73-34-15. LEAK CHECKS GOOD AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.Nov 8, 2016 · N182UW · Airbus A321211SDR UIEA2016062800532Transmitter · faultyNR 2 ENGINE FUEL PRESSURE SHOWS 200 PSI WHEN ENGINE NOT RUNNING. FUEL PRESSURE TRANSMITTER REPLACED IAW AMM 73-33-01.Jun 27, 2016 · N648GT · Boeing 76733AERSDR ASAA2016062317158Pressure Switch · failedNR 2 FUEL FILTER BYPASS LIGHT ILLUMINATED. ACFT GROUNDED. R & R NR 2 ENGINE DIFFERENTIAL PRESSURE SWITCH, LEAK AND OPS CHECK GOOD, REF AMM 73-34-01. R & R FUEL FILTER AND DRAIN PLUG O-RING, OPS AND LEAK CHECK GOOD REF AMM 73-11-02.Jun 23, 2016 · N468AS · Boeing 737990ER
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