R/R HMU FUEL SOV SW. IAW AMM 73-21-23. OPS CK GOOD. DMI 170784 CLOSED.
) - [SDR ASAA2022062438800](https://openairdocs.org/sdr/ASAA2022062438800.md): Transmitter · leaking · Jun 24, 2022 · N587AS · Boeing 737890 > WHILE PERFORMING LEAK CHECK ON THE # 1 MOTOR NOTED THE FUEL FLOW TRANSMITTER LEAKING. GROUNDED - YES. REMOVED AND REPLACED # 1 ENG FUEL FLOW TRANSMITTER AND PERFORMED GOOD OP CHECK IAW B737-800 AMM 73-31-01, NO LEAK NOTED AT THIS TIME. - [SDR AALA202206097813](https://openairdocs.org/sdr/AALA202206097813.md): Transmitter · leaking · Jun 8, 2022 · N921US · Airbus A300* > AIRCRAFT WAS GROUNDED: AFTER TAKEOFF STRONG ODOR NOTICED AFT LEFT CABIN. AIRCRAFT RETURNED TO CHS AND UPON LANDING STRONG FUEL ODOR IN CABIN AND FLIGHT DECK WAS NOTED. A SIGNIFICANT FUEL LEAK NOTED FROM LEFT ENGINE INFLIGHT LEFT ENGINE FUEL FLOW 1000 LBS HIGHE - [SDR I5PA2021120588802](https://openairdocs.org/sdr/I5PA2021120588802.md): None · faulty · Dec 5, 2021 · N888LT · Boeing 757230 > DISCREPANCY: R ENG FUEL FLOW SLOW TO INDICATE. CORRECTIVE ACTION: REMOVED AND REPLACED R ENG FUEL FLOW TRANSMITTER IAW AMM 73-31-01. OPERATIONAL TEST OK IAW AMM 71-00-00. - [SDR QR9R20211116004](https://openairdocs.org/sdr/QR9R20211116004.md): Pressure Switch · illuminated · Nov 16, 2021 · Bolkms BK117C2 > WITH BOTH ENGINES STARTED AND AT IDLE, #1 ENG FUEL PRESSURE LOW CAUTION ILLUMINATED. A TEST FLIGHT EVALUATION REVEALED AT IDLE #1 ENGINE FUEL PRESSURE LIGHT DOES ILLUMINATE RIGHT WHEN THE PRIME PUMP IS TURNED OFF. THE LIGHT WILL EXTINGUISH WHEN THE PRIME PUMP - [SDR NACA2021092400001](https://openairdocs.org/sdr/NACA2021092400001.md): None · none · Sep 24, 2021 · N351CM · Boeing 767323 > DISCREPANCY: FUEL FLOW RIGHT ENGINE SHOWS 0 PPH UNTIL N2 SHOWS 27%. TIME TO LIGHT OFF AND EGT RISE BOTH NORMAL. CORRECTIVE ACTION: TRANSFERRED TO MEL 73-31-01-02 CAT C. RIGHT ENGINE FUEL FLOW CHECKS GOOD PER B767 AMM 71-00-00. - [SDR 9JLA2021081628405](https://openairdocs.org/sdr/9JLA2021081628405.md): Flow Sensor · defective · Aug 8, 2021 · N850EN · Amd FALCON900EX > THE FLIGHT CREW REPORTED THAT THE NO3 ENGINE FUEL FLOW INDICATES ZERO, THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED AN DEFECTIVE FUEL FLOW TRANSMITTER. THE DEFECTIVE TRANSMITTER WAS REMOVED AND A REPAIRED UNIT WAS INSTALLED. OPS CHECKS WERE SATISFACTORY A - [SDR HALA2021040600045](https://openairdocs.org/sdr/HALA2021040600045.md): Meter · defective · Apr 5, 2021 · N395HA · Airbus A330243 > ETOPS - FUEL USED INDICATOR - DEGRADED MODE // REMOVED AND REPLACED FUEL FLOW TRANSMITTER PER AMM 73-31-11. NO FAULTS NOTED, EEC BITE CHECK OK. NO LEAKS NOTED. OK FOR SVC. METER, FUEL FLO OFF 43-7331-9-0001 01175 ON 43-7331-9-0001 30421 - [SDR CALA2021040500421](https://openairdocs.org/sdr/CALA2021040500421.md): Transmitter · faulted · Apr 5, 2021 · N38458 · Boeing 737900ER > DURING TAKEOFF ENG 2 FUEL FLOW WAS LOW AND FLUCTUATING WITH FILT ER BYPASS LIGHT ILLUM. ON CALL CONTRACT MX PERFORMED EEC BITE I.A.W FIM TASK 73-00-00-810-801-F00 AND FOUND 1 MSG FOR FUEL FILTERS DISAGREE BOWL TO BE CLEAN I.A.W AMM 73-05-00-810-801-F00. 73-31 - [SDR 9JLA2021040524765](https://openairdocs.org/sdr/9JLA2021040524765.md): Transmitter · faulted · Apr 2, 2021 · N1JP · Beech 400A > THE FLIGHT CREW REPORTED THAT DURING PREFLIGHT CHECKS THAT THE LEFT ENGINE FUEL FLOW INDICATOR WAS READING ZERO WITH THE ENGINE RUNNING. THIS DISCREPANCY CAUSED THE FLIGHT TO BE CANCELLED. THE MAINTENANCE VENDOR TROUBLESHOT AND DETERMINED THAT THE LEFT ENGINE - [SDR ASAA2021032734432](https://openairdocs.org/sdr/ASAA2021032734432.md): Transmitter · faulty · Mar 27, 2021 · N579AS · Boeing 737890 > #1 ENGINE TREND DATA SHOWS A GRADUAL SHIFT IN CRUISE DELTA FUEL FLOWING INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FUEL FLOW TRANSMITTER. REF B737-800 AMM 73-31-01-400-801-F01. PERFORMED #1 ENGINE LEAK CHECK OF FUEL FLOW TRAN - [SDR ASAA2021031934339](https://openairdocs.org/sdr/ASAA2021031934339.md): Transmitter · leaking · Mar 19, 2021 · N597AS · Boeing 737890 > #1 ENG FUEL FLOW TRANSMITTER LEAKING. GROUNDED - YES. REPLACED THE #1 ENG FUEL FLOW TRANSMITTER, LEAK AND OPS CHECK GOOD REF B737-800 AMM 73-31-01/401. - [SDR ASAA2021030134226](https://openairdocs.org/sdr/ASAA2021030134226.md): Transmitter · leaking · Mar 1, 2021 · N596AS · Boeing 737890 > #1 ENGINE FUEL FLOW TRANSMITTER LEAK, WHILE PERFORMING T/C # 78471001. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FUEL FLOW TRANSMITTER REF B737-800 AMM 73-31-01.ACCOMPLISHED TEST 3A AND TEST 13, NO LEAK NOTED AND OPS CK GOOD. - [SDR UIEA2021022400415](https://openairdocs.org/sdr/UIEA2021022400415.md): Transmitter · malfunctioned · Feb 22, 2021 · N663GT · Boeing 767324 > 39 MIN INTO FLIGHT FL410 FUEL FLOW READING LT 0.5 R7 3.8 CALCULATED FUEL READING (FUEL USED) LEFT 0.0 TOT 4.3 RIGHT 4.3 (REMOVED AND REPLACED LT ENG FUEL FLOW TRANSMITTER, NO LEAKS NOTED, OPS CHECK NORMAL IAW AMM 73-31-01. PERFORMED ENGINE RUN UP, OPS CHECK N - [SDR UIEA2020091081967](https://openairdocs.org/sdr/UIEA2020091081967.md): Indication Sys · intermittent · Sep 6, 2020 · N1381A · Boeing 767316 > RT ENGINE FUEL FLOW IS INTERMITTENT. TRANSFERRED TO MEL 73-31-01-02, MDDR 133972, CAT C. - [SDR UIEA2020090801966](https://openairdocs.org/sdr/UIEA2020090801966.md): Warning Message · false activation · Sep 6, 2020 · N1381A · Boeing 767316 > RIGHT ENGINE FUEL FLOW INDICATOR INOPERABLE, QUANTITY INDICATORS ALL INDICATE NORMALLY. PERFORMED FUEL FLOW TRANSMITTER INSPECTION IAW AMM 73-31-00, NO LEAKS FOUND. TRANSMITTER CONNECTOR PLUG IS RIGHT, NO DEFECTS FOUND. PERFORMED OPERATIONS CHECK IAW AMM 71 - [SDR UIEA2020072311587](https://openairdocs.org/sdr/UIEA2020072311587.md): Transmitter · failed · Jul 21, 2020 · N1381A · Boeing 767316 > NR 2 ENGINE, NO FUEL FLOW INDICATION. PERFORMED FIM 73-31 TREE 806 ITEM 44, ACCOMPLISHED. REMOVED AND REPLACED THE FUEL FLOW TRANSMITTER FOR THE RT ENG, OPS CHECKED GOOD, FUEL FLOW TRANSMITTER TESTED GOOD. - [SDR I5PA2020051475701](https://openairdocs.org/sdr/I5PA2020051475701.md): Transmitter · leaking · May 12, 2020 · N757QM · Boeing 75729J > LH ENG FUEL FLOW TRANMISTTER WAS FOUND LEAKING AT THE CASE ASSY. THE UNIT WAS REPLACED WITH NO ISSUES DURING THE OPERATIONAL CHECK - [SDR UIEA2020041000732](https://openairdocs.org/sdr/UIEA2020041000732.md): Transmitter · faulty · Apr 10, 2020 · N1409A · Boeing 767306 > R ENG FUEL FLOW.5 LOWER THAN L ENG FUEL FLOW REPEAT DISCREPANCY. R ENG FF SHOWED 0.0 IN IDLE DECENT. EVENT RECORDED.(TRANSFERRED TO MDDR 126879 IAW MEL 73-31-01-02, CAT 'C', DUE DATE 20APR20. NO MX ACTION REQ. DISPATCH ACL 0619Z.
LP 1120337: REPLACED - [SDR UIEA2019070704690](https://openairdocs.org/sdr/UIEA2019070704690.md): Indication Sys · malfunctioned · Jul 6, 2019 · N1409A · Boeing 767306 > LEFT FUEL FLOW INDICATION INOP (
TRANSFER TO MDDR # 114307 IAW DDG 73-31-01-02 CAT C DUE DATE 16JULY-2019
LP 1090219-M5 INBOUND CREW REPORTED LEFT FUEL FLOW INIDICATION NORMAL RAN LEFT ENG AND OPS CHECK OK IAW AMM 71-00-00
) - [SDR HNAA2019052200146](https://openairdocs.org/sdr/HNAA2019052200146.md): Flow Sensor · defective · May 19, 2019 · N647AE · Emb EMB145LR > 647 73-30 2007141 19MAY19 CHS CLOSE NR 1 ENG FUEL FLOW WENT TO ZERO ON EICAS AND RMU DURING T/O ROLL. HISTORY: NONE MEL 19MAY19 10:55 CHS C13909 73-6 FUEL FLOW INDICATORS FACT 21MAY19 04:59 PHL R&R RUEL FLOW SENSOR IAW MM 73-35-10. OPS - [SDR UIEA2019032803668](https://openairdocs.org/sdr/UIEA2019032803668.md): Indication Sys · malfunctioned · Mar 28, 2019 · N1049A · Boeing 76736N > REF LP 880766-01 FUEL FLOW ALSO INDICATED 300-400 PPH HIGHER THAN RT NR 2 ENGINE(PERFORMED NR 1 AND NR 2 ENG RUN IAW AMM 72-10-00 FF INDICATION NORMAL NO FF IMBALANCE NOTED ALL ENG PARAMETER NORMAL OK FOR SERVICES AT TIME
) - [SDR IPXA2018033027996](https://openairdocs.org/sdr/IPXA2018033027996.md): Indicator · failed · Mar 27, 2018 · N129UP · Airbus A300F4622R > FUEL FLOW / FUEL USED CIRCUIT BREAKERS 68 & 75 TRIPPED. RESET BOTH CIRCUIT BREAKERS ON GROUND. FOUND THE NR 2 ENGINE FF/FU INDICATOR NEEDLE ERRATIC. REMOVED & REPLACED THE NR 2 ENG FF/FU INDICATOR IAW AMM 73-31-21-0401. - [SDR ASAA2017121222957](https://openairdocs.org/sdr/ASAA2017121222957.md): Transmitter · defective · Dec 12, 2017 · N579AS · Boeing 737890 > NR 1 ENGINE TREND DATA SHOWS A SUDDEN SHIFT IN CRUISE DELTA FUEL FLOW INDICATION ERRORS ARE SUSPECT. GROUNDED - YES. REMOVED & REPLACED NR 1 ENGINE FUEL FLOW TRANSMITTER REF AMM 79-31-01. PERFORMED LEAK CKS, OPS CKS AND EEC BITE CKS. ALL CKS GOOD, NO DEFECT NO - [SDR HALA2017112900286](https://openairdocs.org/sdr/HALA2017112900286.md): Transmitter · faulted · Nov 29, 2017 · N391HA · Airbus A330300 > NR 2 ENGINE FUEL FLOW AND FUEL USED IS SIGNIFICANTLY HIGHER THAN THE NR 1 ENGINE. NR 1 FUEL USED IS 10000 LBS NR 2 FUEL FLOW 3000 LBS HIGHER. ACMS SHOWED HIGHER FUEL FLOW ON NR 2 ENGINE. ALL OTHER PARAMETERS NORMAL. REMOVED & REPLACED FUEL FLOW TRANSMITTER - [SDR JIKA2017103101](https://openairdocs.org/sdr/JIKA2017103101.md): Fuel Line · loose · Oct 31, 2017 · N961CA · Piper PA31350 > THE PILOT REPORTED DURING INITIAL CLIMB OUT FROM KPHX THAT HE OBSERVED FUEL LEAKING FROM THE INSTRUMENT PANEL. THE PILOT INFORMED ATC AND REQUESTED TO RETURN TO THE AIRPORT. UPON LANDING ATC DISPATCHED FIRE AND RESCUE BUT WAS NEEDED AND THE PILOT WAS ABLE TO T - [SDR HALA2016121300543](https://openairdocs.org/sdr/HALA2016121300543.md): Transmitter · erratic · Dec 13, 2016 · N382HA · Airbus A330243 > DURING T/O ROLL ENG NR 1 FUEL USED DIGITAL COUNTER "HUNDREDS" DOUBLE HORIZ AMBER LINE OUT. FUEL TOTAL COUNTER AMBER LINE OUT THROUGH "TENS". FUEL FLOW TRANSMITTER (E1-4070KS) WITH HISTORY. REPLACED FF XMITTER PER AMM 73-31-11, OPS OK. METER, FUEL FLO OFF 43 - [SDR COEA2015091601705](https://openairdocs.org/sdr/COEA2015091601705.md): B-Nut · loose · Sep 16, 2015 · N705FX · Cessna 208B > FLIGHT 7805 AIR TURN BACK. AFTER TAKEOFF, THE PILOT REPORTED A FUEL SMELL IN THE COCKPIT. THE PILOT ELECTED TO RETURN WHERE THE ACFT WAS GNDED. NO EMER WAS DECLARED. TROUBLE SHOT & FOUND TWO LOOSE B NUTS ON THE FUEL FLOW TRANSMITTER. TIGHTENED B NUTS TO S - [SDR SIMA20140908004](https://openairdocs.org/sdr/SIMA20140908004.md): Warning System · false activation · Sep 8, 2014 · N653AE · Emb EMB145LR > LEFT ENG PPH WENT TO 0 & TURNED RED & BLINKED AT APPROX 120 IAS. ABORTED TAKEOFF WT APPROX 41K LBS. HAD CREW PERFORM HI POWER RUN. ALL INDICATIONS NORMAL IAW RR MM 72-00-00. - [SDR YENA20140904176](https://openairdocs.org/sdr/YENA20140904176.md): Pressure Switch · failed · Sep 4, 2014 · N296JB · Emb ERJ190100IGW > CREW DECLARED AN EMERGENCY DUE TO A NR 2 ENGINE LOW FUEL PRESSURE CAS MESSAGE ALONG WITH A FUEL FEED 2 FAULT. AFTER RUNNING BOTH QRH PROCEDURES BOTH MESSAGES EXTINGUISHED AND FUEL SYSTEM RETURNED TO NORMAL. R & R ENG NR 2 FUEL LOW PRESSURE SWITCH IAW AMM 73- - [SDR HYIA20140905116](https://openairdocs.org/sdr/HYIA20140905116.md): Transducer · inaccurate · Sep 1, 2014 · N2714M · Cessna 402C > ON INITIAL CLIMB, THE PILOT REPORTED FUEL FLOW OF 160PPH. AFTER REACHING CRUISING ALTITUDE THE FUEL FLOW WENT TO 0 & THE PILOT REPORTED TEMP POWER LOSS. THE PILOT WENT THROUGH THE ENG FAILURE CHECKLIST & PLACED THE AUXILIARY BOOST PUMP ON IN THE HIGH SETTING - [SDR SIMA20140326009](https://openairdocs.org/sdr/SIMA20140326009.md): Indicator · leaking · Mar 26, 2014 · N643AE · Emb EMB145LR > RIGHT ENG MECHANICAL BYPASS INDICATOR LEAKING FUEL. R & R RT ENG MECHANICAL BYPASS INDICATOR, LEAK CHECKED GOOD IAW MM 73-37-10. - [SDR FDEA201312122967](https://openairdocs.org/sdr/FDEA201312122967.md): Meter · failed · Dec 12, 2013 · N578FE · Doug MD11F > FUEL QTY, FUEL USED CHECK DISPLAYED AT APPROX 22437. ESTIMATED FUEL USED WAS 5K LBS ABOVE FUEL BURNED. IAW FUEL QTY 1 USED CHECKLIST ISOLATED THEN SHUT DOWN ENG NR 1. NO FURTHER LEAK. CONTINUED IAW CHECK LIST ISOLATED TANK TO ENG, LEAK CONTINUED. THEN IA - [SDR CA130923014](https://openairdocs.org/sdr/CA130923014.md): Bypass Valve · malfunctioned · Sep 21, 2013 · Boeing 737* > NR 2 ENGINE FUEL FILTER BYPASS LIGHT ILLUMINATED 20 MINS AFTER TAKEOFF AT FL390. ACFT RETURNED FOR LANDING WHERE THE LIGHT EXTINGUISHED AT THE GATE WHEN ENGINE WAS SHUTDOWN. FIM 73-05 TASK 801, CARRIED OUT WHERE THE FUEL FLOW DIFFERENTIAL PRESSURE SWITCH WAS - [SDR CA130905012](https://openairdocs.org/sdr/CA130905012.md): Transmitter · inoperative · Sep 2, 2013 · Beech F90 > (CAN) REPORT LEFT FUEL FLOW UNSERVICEABLE. FUEL FLOW TRANSMITTER, REMOVED TSO:2053.4, CSO:1538, ON CONDITION PART, PREVIOUS O/H SEPT 2004. O/H REPLACEMENT TRANSMITTER INSTALLED AND SYS GROUND TESTED SERVICEABLE. - [SDR FDEA201305151001](https://openairdocs.org/sdr/FDEA201305151001.md): Indicator · failed · May 15, 2013 · N921FD · Boeing 75723A > LEFT ENGINE EPR WAS SURGING OR - 0.10 EPR DURING T/O ROLL WITH AUTOTHROTTLES ENGAGED. REJECTED T/O AT 80 KNOTS. R & R FFG CONTINUED AND ENGINE WAS REMOVED FOR THIS PROBLEM. - [SDR HALA2013051300059](https://openairdocs.org/sdr/HALA2013051300059.md): Transmitter · malfunctioned · May 13, 2013 · N385HA · Airbus A330243 > ETOPS SIGNIFICANT SYSTEM - BTB - FF INDICATION RT ENGINE AMBER LINES THRU INDICATION. RESET L& R FCMC AS PER MMNT. INSTRUCTIONS, NO CHANGE IN RT FF INDICATION, RETURNED TO GATE. C/W TSM 73-30-00-810-806-A, PER TSM REMOVED AND REPLACED NR 2 ENG FUEL FLOW TRAN - [SDR NACA2013040900001](https://openairdocs.org/sdr/NACA2013040900001.md): Transmitter · faulty · Apr 9, 2013 · N322DL · Boeing 737232 > TAKEOFF WAS ABORTED AT 90KTS DUE TO EXCESSIVE FUEL FLOW INDICATION ON NR 2 ENGINE. REPLACED NR 2 ENGINE FUEL FLOW TRANSMITTER, REF: B737-200MM 73-31-11. - [SDR AALA20130328013](https://openairdocs.org/sdr/AALA20130328013.md): Transmitter · inoperative · Mar 28, 2013 · N772AN · Boeing 777223 > ORD - CREW REPORTED BLEED PRESSURE LEFT STATUS MESSAGE, CABIN TEMPERATURE CONTROL RIGHT STATUS MESSAGE AND FUEL DISAGREE IN FLIGHT. EMERGENCY DECLARED FLIGHT RETURNED ORD LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED LEFT AND RIGHT FUEL F Next page: https://openairdocs.org/jasc/7331/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 = '7331' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/jasc/7331/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.