JASC 3620

Service difficulty reports · 1,276

Reports filed under 3620 · Pneumatic 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 = '3620'
  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 AALA202302015650Regulator Valve · abnormalAIRCRAFT WAS GROUNDED: LEFT ENGINE DUCT PRESSURE INDICATES 0 ON CLIMB AND CRUISE. FLIGHT ATTENDANT REPORT NO AIRFLOW IN CABIN. FLIGHT AIR INTERRUPTED BACK TO MIA. NO EMERGENCY DECLARED. REMOVED AND REPLACED PRESSURE REGULATING SHUT OFF VALVE (AALA202302015650)Jan 28, 2023 · N927NN · Boeing 737823SDR AALA202302018831Valve · abnormalAIRCRAFT WAS GROUNDED: LEFT ENGINE DUCT PRESSURE INDICATES 0 ON CLIMB AND CRUISE. FLIGHT ATTENDANT REPORT NO AIRFLOW IN CABIN. FLIGHT AIR INTERRUPTED BACK TO MIA. NO EMERGENCY DECLARED. REMOVED AND REPLACED PRESSURE REGULATING SHUT OFF VALVE (AALA202302015650)Jan 28, 2023 · N927NN · Boeing 737823SDR AALA202302012675Regulator · abnormalAIRCRAFT WAS GROUNDED: LEFT ENGINE DUCT PRESSURE INDICATES 0 ON CLIMB AND CRUISE. FLIGHT ATTENDANT REPORT NO AIRFLOW IN CABIN. FLIGHT AIR INTERRUPTED BACK TO MIA. NO EMERGENCY DECLARED. REMOVED AND REPLACED PRESSURE REGULATING SHUT OFF VALVE (AALA202302015650)Jan 28, 2023 · N927NN · Boeing 737823SDR SIMA2023012019003Filter · dirtyCREW DECLARED EMERGENCY FOR BLEED1 TEMP AND ANTI ICE FAIL REMOVED AND CLEANED #1 FAN AIR VALVE FILTER AND RE INSTALLED FILTER IAW EMB-145 AMM 36-11-07. PERFORMED OPS CHECKS WITH CREW IAW AMM 30-00-00 OPS CHECKS GOOD NO MESSAGE NOTED AT THIS TIME A/C OK FOR SJan 19, 2023 · N909AE · Emb EMB145LRSDR ASAA2022120241013Lru · faultedJUST AFTER T.O. RIGHT DUCT PRESSURE WAS ABOUT 75 PSI WITH LEFT ABOUT 40 PSI. PRESSURE WOULD DECREASE AS THE THROTTLE WAS DECREASED. PRESSURE IN RIGHT DUCT REMAINED NEAR 75PSI DURING CLIMB PRESSURE RETURNED TO NORMAL AT CRUISE AT 42 PSI. ON APPROACH AT 5,000 - Dec 2, 2022 · N932AK · Boeing 7379SDR SWIA202266723Warning Message · illuminatedGOT R 14TH DUCT WARNING MESSAGE ON TAKEOFF. CHECKED ANTI-ICE PAGE AND SAW RED LINE GOING UP THE RIGHT SIDE OF THE FUSELAGE. ANTI-ICE WAS OFF, NEVER USED. ABOUT 30 SECONDS LATER GOT BOTH L & R 10TH DUCT WARNING MESSAGES. FOLLOWED QRH, RETURNED TO FIELD WITH RIGNov 1, 2022 · N856AS · Cndair CL6002B19SDR SIMA20221025002Clamp · unsecureA/I BACK TO ORD DUE TO BLEED 1 LEAK DURING FLIGHT. EMERGENCY WAS DECLARED BUT WAS NOT OVERWEIGHT. FLT CHG EQP AND CONTINUED-C/A-PERFORMED VISUAL AND LEAK INSPECTION OF DUCT AIR BLEED LINES OF SYSTEM 1 IAW EMB 145 AMM TASK 36-11-09. RE-TORQUED V-BAND CLAMPS AT Oct 25, 2022 · N616AE · Emb EMB145LRSDR DALA2022083005834None · noneSHIP 6708 -DIV/PRES- INTO DSM DUE TO A DUAL BLEED FAILURE. PERFORMED EMERGENCY DESCENT. CORRECTIVE ACTION: ON THE RT ENG REPLACED THE FAN AIR VALVE AND THE FAT SENSOR. ON THE LT ENG THE HP PILOT VALVE WAS REPLACED. ENG RUNS CHECK OUT GOOD. NO-GO PROCEDURES C/WAug 29, 2022 · N6708D · Boeing 757232SDR DALA2022090105887None · noneSHIP 3095 -ATB- DUE TO ENG 1 BLEED LEAK MESSAGE. CORRECTIVE ACTION: FOUND FORWARD CLAMP AT PRE-COOLER EXCHANGER WITH NUT MISSING AND SEPARATED FROM THE EXCHANGER ASSEMBLY. R/R BOTH FORWARD AND AFT CLAMPS. OPS CHECK GOOD. (LP# 9007648)Aug 28, 2022 · N395DZ · Airbus A321211SDR SIMA20220812002Bleed Air Sys · crackedBLEED 1 TEMP IN RED IN ICING CONDITIONS EXITED ICING BEFORE WARNING MSG APPEARED.#2 E2 BLEED AIR PRE-COOLER CRACKED.-C/A-RAR E1 FAN AIR VALVE THERMOSTAT OUTLET HOSE IAW EMB 145 AMM 36-11-06. OP CHECK GOOD IAW EMB-145 AMM 36-00-00 REF NRWC 909-ORD-06439 AND RARAug 12, 2022 · N909AE · Emb ERJ170200LRSDR SIMA20220720005Bleed Air Sys · leakingBLEED 1 LEAK ON FINAL APPROCH EMERGENCY DECLARED. CLEARED WHEN BLD 1 VALVE CLOSED-C/A-FOUND LEK ON LH GRATE ASSY RAR LH GRATE ASSY PER EMB AMM 21-57-02. LEAK CHECK GOOD AT THIS TIMEJul 20, 2022 · N664MS · Emb ERJ170200LRSDR DALA2022072105041None · noneAIRCRAFT 1820-DIV-AFTER T.O. LEFT ENGINE BLEED OFF EICAS MESSAGE ILLUMINATED. QRH APPLIED. PROBLEM DID NOT CLEAR. LEFT BLEED PRV STATUS MESSAGE DISPLAYED. CORRECTIVE ACTION: SWAPPED PRV AND HPSOV AND DEFERRED PER MEL 36-11-02. RTN SERVICEABLE PRV BACK TO HPSOVJul 20, 2022 · N844MH · Boeing 767SDR DALA2022071104838Isolation Valve · mislocatedSHIP 5805 - ATO - DUE TO LEFT BLEED OFF MESSAGE. CORRECTIVE ACTION: NO MAINTENANCE PERFORMED. ISOLATION VALVE SWITCH IN INCORRECT POSITION FOR TAKE-OFF. (8439194)Jul 9, 2022 · N585NW · Boeing 757351SDR MASA2022063000174None · noneR BLEED DUCT WARN-RETURN TO FIELD-EMER DECLARED. MX IS CURRENTLY TROUBLE SHOOTING.Jun 30, 2022 · N919FJ · Cndair CL6002D24SDR 2022FA0000318Mixing Valve · intermittentON SATURDAY 6-25-22, LEAR 60-284, N461MC WAS DEPARTING KAUS HEADING TO KELP, SHORTLY AFTER TAKEOFF THE CREW NOTICED DUAL BLEED AIR LIGHTS ILLUMINATED INDICATING HIGH TEMPERATURE IN THE TAIL SECTION, THE CAPTAIN REDUCED POWER, THE CREW THEN THOUGHT THEY NOTICEDJun 29, 2022 · N461MC · Lear 60LEARSDR HNAA2022061400223None · nonePDIS 629 36-21 2116541 12JUN22 RIC CLOSE BLEED 1 LEAK IN FLT 29363 00 RS FACT 13JUN22 06:07 RIC FOUND THERMAL SWITCH WIRE NOT SOLDERED IN AFT AVIONIS BAY BY THE CROSS BLEED VALVE. SJun 12, 2022 · N629AE · Emb EMB145LRSDR UIEA2022060600571Bleed Air Sys · not seatedL ENG BLEED OFF RTB KONT DUE TO PRESSUERIZATION/BLEED ISSUE. PERF AIR SUPPLY BITE PER FIM 36-20 FT 804.BITE FAULTED TEST FAILED WITH LIGHT TEST AND FAULTED MULTIPLE FAULTS ON BOTH L&R ENG. R&R SUPPLY BOX PER AMM 36-23-01. UPON FUTHER INSPECTION FOUND L ENG BLEJun 6, 2022 · N663GT · Boeing 767324SDR YENA2022060600575Connector · inoperativeFLT#1120, DTW-JFK. (AIRCRAFT DIVERTED TO EWR) 'BLEED 1 LEAK AT CRUISE ALTITUDE (ENGINE BLEED SYS - SINGLE - ICING OK); PERFORMED T/S IAW FIM 36-21-00-810-813-A, NO ACTIVE FAULTS. ELECTRICAL CHECKS OF LOOP 3 IAW AMM 36-21-02, SHOWED FAULT AT LOOP 3 CONNECTORS IMay 28, 2022 · N353JB · Emb ERJ190100IGWSDR UIEA2022052300525Valve · warning messageFAILURE L & R FAT Z DOES NOT COMMAND THE FAV CLOSE ( POST RUN - UP MESSAGED. PERFORMED BITE TEST FOR FAMV OR FATS FAULTS ON THE AIR SUPPLY BITE MODULE . TEST PASSED NO FAULTS NOTED. SYSTEM OK; AT THIS TIMEMay 23, 2022 · N662GT · Boeing 76731ASDR REXA2022052601033Loop · out of position@ 17000 IN CLIMB L BLEED DUCT CABIN ALTITUDE NEAR 7900 BOTH BLEEDS WERE SHUT ON EICAS RAN QRH AND DECENDED TO 10000 AFTER LOOSING PRESSURIZATION RETURNED TO JFK QRH 7.22. T/S L BLEED DUCT - WARNING MSG PER FIM 36-21-01. FOUND MT137 MAKING CONTACT WITH LH COWL May 23, 2022 · N182GJ · Cndair CL6002D24SDR CALA2022051801275Valve · stuckRT ENG BLEED OFF AFTER TO. UNABLE TO RESTORE AIRCRAFT WILL REQUIRE #2 ENGINE HIGH POWER RUN AND BLEED AIR IADMM WORKING ITEM OPERATIONAL CHECK REF AMMT ASK 71-00-00-862-053-H03 AND TASK 36-00-00-862-047 AFTER AHM LOG PAGE 8577396 AND LP 8604759 HAVE BEEN CLEARMay 17, 2022 · N76062 · Boeing 767424ERSDR UIEA2022050300429Switch · fault messageBLEED 2 EICAS MESSAGE(<P>CMC # 36227 PER FIM TASK # 36-11/940. REMOVED AND REPLACED #2 ENG BLEED AIR OVERPRESSURE SWITCH PER AMM 36-21-03/401. THEN OPERATIONAL TEST WITH ENG RAN, OK PER AMM 71-00-00/501. NO MSG FOUND. A/C OK FOR SVC.<SPAN STYLE="WHITE-SPACE: PMay 3, 2022 · N477MC · Boeing 74747UFSDR QXEA2022042500172Bleed Air Sys · leakingFL 360 "BLEED APU LEAK" CAUTION LIGHT RAN QRH 2.5. DIVERTED. REMOVED FROM SERVICE. FAULT CODES 36226006AM1 AND 36226006AM2 INDICATED IN CMC ON LAST LEG. NO CURRENT FAULTS. REF E175 FIM 36-22-00-810-813-A COMPLIED WITH BLEED AIR SYS 1 AND 2 NVM READ/ RESET. NO Apr 22, 2022 · N630QX · Emb ERJ170200LRSDR DALA2022042002747Thermoswitch · inoperativeSHIP 3139 - ATB - DUE TO LOSS OF THE RIGHT ENG BLEED AND ASSOCIATED PACK. CREW DECISION TO RETURN TO JFK. CORRECTIVE ACTION: REPLACED #2 ENG PRV SOLENOID 10HA2.(8725082)Apr 19, 2022 · N339NB · Airbus A319114SDR DALA2022042803008Ecs · failedSHIP 8120 -ATB- DUE TO RIGHT BLEED FAIL. CORRECTIVE ACTION: REPLACED ECS HARNESS, AND INTEGRATED AIR SYSTEM CONTROLLER #2. (LP#8254172)Apr 18, 2022 · N120DU · Airbus BD5001A10SDR DALA2022041802658None · noneSHIP 699 - DIV- INTO MEM DUE TO DUAL BLEED LOSS. LOST RIGHT BLEED FIRST THEN LEFT BLEED FROM DUCT LEAK. CORRECTIVE ACTION: REMOVED AND REPLACED WHEEL WELL FIRE POWER SUPPLY CARD. DISCOVERED LARGE CRACK ON PLENUM IN LEFT PACK BAY. REMOVED AND REPLACED LT PACK PApr 14, 2022 · N699DL · Boeing 757232SDR YENA2022032100296Pressure Switch · failedFLT#441, BOS-CLE .(AIRCRAFT PREFORMED AN AIR TURN BACK, BOS-BOS). ' AFTER TAKEOFF BLEED 2 OVERPRESS DID NOT RESET RAN QRH. AIR RETURN BACK AIRCRAFT HAS HISTIRY OF BLEED ISSUES AND APU; ITEM RESOLVED ON LOG PAGE 3327106 ITEM 1. 3327106 ITEM 1: REPLACED RH BLEEDMar 18, 2022 · N229JB · Emb ERJ190100IGWSDR YENA2022031800280Exhaust Duct · leakingFLT#1527, EWR-FLL. "BLEED 2 LEAK AT FL 150 ON ARRIVAL; ACCOMPLISHED ENG#2 PRECOOLER EXHAUST DUCT RE-SEAL AS PER M.M 54-50-25 & EMBRAER ETD2010/190-10969. ACCOMPLISHED ENG 2 IDLE RUN AND ENG 2 BLEED SYS LEAK/OPS CHECK AS REQUIRED PER M.M. 36-00-00. ALL OPS/IND.Mar 16, 2022 · N267JB · Emb ERJ190100IGWSDR HNAA2022030700119None · nonePDIS 626 36-11 2475521 03MAR22 PHL CLOSE ICING PROTECTION TEST FAIL 2 TIMES IN FLIGHT DONE THROUGH 18K FT WITH EICAS MESSAGES BLEED 2 VLV CLOSED AND BLEED 2 VLV FAIL. FACT 03MAR22 14:17 PHL DOWNLOADED CMC WITH MFD AND NO MESSAGES APPEAR AT THIMar 3, 2022 · N626AE · Emb EMB145LRSDR HALA2022030200064None · noneETOPS - BLEED PAGE, BLEED AIR TEMP 1 AMBER TEMPERATURE 150 CELCIUS // RESET BMC1 PER AMM 36-11-00. INDICATION GREEN. NO FAULT NOTED. PRECAUTIONARY - REMOVED AND REPLACED EXCHANGER OUTLET TEMP SENSOR PER AMM 36-11-17. NO FAULT NOTED. OK FOR SERVICE.Mar 1, 2022 · N374HA · Airbus A330243SDR IPXA2022022379327None · failedINSPECTION TYPE:NA**EMERGENCY DECLARED**REC'D PRIORTY LANDING PATTERN**NO EMERG ACTION ON GRD, A/C LANDED W/OUT INCIDENT**AIR SYS 2 AND AIR SYS 1 BOTH FAILED WITHIN A MINUTE OR SO OF EACH OTHER. ALSO RECEIVED LEVEL 2 "TAIL A-ICE DISAG"PERFORMED RTS OF PNEAUMATFeb 21, 2022 · N255UP · Doug MD11FSDR HNAA2022020900068Not Reported · not reportedPDIS 629 36-11 2706101 07FEB22 ISP CLOSE HS 1 VLV FAIL MSG DURING TAKE OFF ROLL. REJECTED TAKE OFF AT 65 KTS FULL THROTTLE FACT 07FEB22 11:24 ISP PERFORMED OPS TEST OF AIR BLEED SYS WITH CREW IAW AMM 36-00-00-700-803. OPS CHEFeb 7, 2022 · N629AE · Emb EMB145LRSDR YENA2021121300837Clamp · migratedFLT 940, SRQ-BOS(DIVERTED TO MCO). BLEED 2 LEAK QRH COMPLETED; T/S PER FIM 36-11-10 FOUND MIGRATED SUPPORT CLAMP ALLOWING PIGTAIL J2148 OF LOOP 5 TO MAKE CONTACT WITH PYLON STRUCTURE. PERFORMED ESPM REPAIR 20-41-20ON PIGTAIL AND RESECURED CLAMP AS REQUIRED. FODec 11, 2021 · N304JB · Emb ERJ190100IGWSDR YENA2021121300836Clamp · migratedFLT 940, SRQ-BOS(DIVERTED TO MCO). BLEED 2 LEAK QRH COMPLETED; T/S PER FIM 36-11-10 FOUND MIGRATED SUPPORT CLAMP ALLOWING PIGTAIL J2148 OF LOOP 5 TO MAKE CONTACT WITH PYLON STRUCTURE. PERFORMED ESPM REPAIR 20-41-20ON PIGTAIL AND RESECURED CLAMP AS REQUIRED. FODec 11, 2021 · N304JB · Emb ERJ190100IGWSDR HNAA2021120600596None · nonePDIS 626 36-11 2498141 05DEC21 CLT CLOSE ON T/O AROUND 60KTS, HS VALVE1 FAIL EICAS CAUTION MESSAGE FACT 05DEC21 18:07 CLT UPON ARRIVAL AT A/C NO FAIL MESSAGE WERE DISPLAYED ON EICAS FOR A HSV1 FAIL OR ANY RELATED MESSAGES DISPLDec 5, 2021 · N626AE · Emb EMB145LRSDR YENA2021120100826Thermostat · leakingFLT 1557, FLL-BOG (AIRTURN BACK TO FLL). AIR ENG 2 BLEED ABNORMAL PR INTERMITTENT; FOUND SENSE LINE TO PRV LEAKING REPLACED LINE PER AMM 36-11-52. ALSO REMOVED AND REPLACED PRV SELENOID PER AMM 36-11-55. ACCOMP ENG RUN AND NO FURTHER ABNORMAL PRESSURE NOTEDDec 1, 2021 · N537JT · Airbus A320232SDR HNAA2021120200593None · nonePDIS 638 36-21 2745471 30NOV21 ROA CLOSE BLEED 2 LEAK MSG IN FLIGHT FACT 30NOV21 12:33 ROA C/W FIM TASK 36-20-00-810-802 INSPECTED AND FOUND V BAND CLAMP ON IB SIDE OF Y PIPE IN PYLON LOOSE REMOVED AND REPLACED CLAMP PER AMM 3Nov 30, 2021 · N638AE · Emb EMB145LRSDR W6JA20211024050None · noneSUPPLEMENTAL REPORT: MAINTENANCE PERFORMED @ KFLL BY APPROVED VENDOR BOMBARDIER SERVICE CENTER CRS LN4R342M. TROUBLE SHOT THE " LH BLEED LEAK" AND "LH PYLON LEAK " MESSAGES. PERFORMED INSPECTION OF LH DETECTOR LOOP WITH NO FAULTS. CHECKED LH MPV AND LH INTERMENov 17, 2021 · N70CR · Bombdr BD1001A10SDR DALA2021102706670None · noneSHIP 5814 -DIV- TO MSP DUE TO LEFT ENGINE PNEUMATICS INOP WITH ANTI-ICE NEEDED ENROUTE. CORRECTIVE ACTION: REPLACED HPSOV REF B757 AMM 36-11. NO LEAKS NOTED. R/R 380 DEGREE FAN AIR TEMP SENSOR REF B757 AMM 36-11. LEAK CK GOOD. FOLLOWING NO GO ODI PROCEDURES. MOct 26, 2021 · N594NW · Boeing 757351SDR N6WA2021100901None · noneANTI-ICE DUCT WARNING MSG IN FLT. INSPECTED L WING AI LOOPS BETWEEM SLAT 2 & 3, FOUND PINCHED WIRES LOOPS TOUCHING, REPOSITIONED WIRES AND LOOPS IAW CRJ 550 AMM 36-21-00, NO FAULTS OR MSG NOTED AT THIS TIMEOct 9, 2021 · N569GJ · Cndair CL600*SDR HNAA2021092700472None · nonePDIS 658 36-21 2148011 24SEP21 ROC CLOSE BLEED 1 LEAK SHORTLY AFTER LIFTOFF WITH TO1 THRUST .... T/S BLEED LEAK FOUND HOT SECTION AT PANEL 414DB, OPENED PANEL IAW AMM 06 43 00. FOUND HOT SECTION ACROSS FROM EBV1. R+R EBV1 IAW AMM 36 11 05. PERSep 24, 2021 · N658AE · Emb EMB145LRSDR UIEA2021091702045Shutoff Valve · warning messageR ENG HPSOV ADVISORY & STATUS MSG.(<P>PERFORMED AIR SUPPLY BITE PROCEDURE REF FIM 36-20-00. NO FAULTS NOTED.</P>)Sep 15, 2021 · N1489A · Boeing 76731KSDR VNAA202108091113Insulation · out of positionDURING CLIMB AT FL240, RECEIVED L BLEED WARNING, THEN L BLEED CAUTION. PACKS SHUT DOWN CAUSING LOSS OF PRESSURIZATION. CREW BEGAN DESCENT TO FL100 AND FOLLOWED THE QRH. WAS ABLE TO GET TO FL100, NO MASKS DROPPED. DECLARED AN EMERGENCY AND DIVERTED TO TYS. NO BAug 6, 2021 · N501BG · Cndair CL6002C10SDR CALA2021080601280Status Message · false activationL ENG HPSOV STATUS MSG MSG EVIDENT ONLY ON FINAL TAXI TO GATE. NO CURRENT MSG FAULT DISPLAYED.Aug 6, 2021 · N659UA · Boeing 767322SDR CNMA2021070001Thermal Switch · defectiveR ENG BLEED OVERHEAT (EICAS MSG) EARLY ON CLIMB OUT ~ REMOVED AND ATTACHED WIRES IAW WDM 36-11 AND UNLOCKED FAMV FOR OPS CHECK IAW AMM 36-10. OPS CHECK OKAY.Jul 13, 2021 · N378AX · Boeing 76733ASDR FDEA202107091714Manifold · failedDURING CLIMBOUT AT 9000FT, LEVEL 3-AIR MANF 2 FAIL - C/W QRH ALERT GONE @ N1 60% DECLARED EMERGENCY. REMOVED AND REPLACED D1-29 #2 MANIFOLD SENSING ELEMENT P/N: 35519-4-310, ANUFACTURER: FENWAL SAFETY SYSTEMS. USED MANIFOLD DETECTION TEST SET, NO FAULJul 9, 2021 · N313FE · Doug MD1030FSDR DXTA2021062844380Clamp · leakingBLEED 2 LEAK YELLOW CAS: AFTER TAKEOFF ON CLIMB OUT GOT A BLEED 2 LEAK CAS. FOLLOWED QRH AND CAS EXTINGUISHED. WHILE BURNING OFF FUEL FOR RETURN LANDING BLEED 2LEAK CAS CAME BACK. SHUT DOWN THE ENGINE PER QRH. ENGINE WAS SHUT DOWN IN FLIGHT FOR ABOUT 10 MINS.Jun 28, 2021 · N303QS · Emb EMB505SDR DALA2021062903513Regulator · faultedSHIP 9533 - THE FLIGHT CREW RECEIVED A "TAIL MANIFOLD FAIL" TWICE ON DESCENT IN TO AVL AND DIVERTED TO CLT. AN EMERGENCY WAS DECLARED. CORRECTIVE ACTION: MAINTENANCE REPLACED THE TAIL PRESSURE REGULATING AND SHUTOFF VALVE AND RE-SECURED PNEUMATIC SENSE LINE ONJun 28, 2021 · N971AT · Boeing 717200SDR NACA2021062540001Sensor · fluctuatesDISCREPANCY: LEFT DUCT PRESSURE FLUCTUATES ON CLIMB OUT. CORRECTIVE ACTION: PERFORMED FIM 36-20 FT 803, SYSTEM CHECK OK. PERFORMED AMM 36-10 FT 831, REPLACED FAN AIR TEMP SENSOR PER AMM 36-16-17, BOTH LEAK CHECK AND BITE TEST OK. GROUND VERIFICATION CHECK OK.Jun 24, 2021 · N399CM · Boeing 767323SDR NACA2021062200001Warning Message · false activationDISCREPANCY: ON TAKEOFF AND CLIMB, THRU 2000 FT LEFT DUCT PRESSURE CYCLES RAPIDLY FROM 10-80 PSI. RIGHT DUCT PRESSURE CYCLES 85-45 PSI, BOTH STOP CYCLING BETWEEN 6-8K FEET. CORRECTIVE ACTION: PERFORMED FIM TASK 36-20 FAULT TREE 803 ENGINE RUN AND TAXI VERIFICAJun 22, 2021 · N399CM · Boeing 767323
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