JASC 7711

Service difficulty reports · 456

Reports filed under 7711 · Engine Pressure Ratio (EPR), 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 = '7711'
  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 TSAA0577033Transmitter · defectiveFLT 850 HNL - ITO. ON TAKEOFF, NUMBER 1 ENGINE PRESSURE RATIO INDICATION STOPPED INCREASING AT 170 WHILE THE NUMBER 2 ENGINE INDICATION OPERATED NORMALLY. CREW ABORTED TAKEOFF AT 80 KNOTS. AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REPJul 27, 2005 · N817AL · Boeing 7372X6CSDR DHL2005770007Indicator · malfunctionedREJECTED TAKEOFF FOR NR 1 ENGINE PARAMETERS SIGNIFICANTLY LOWER THAN NR 2 AND NR 3 ENGINES AT TARGET EPR. AMBIENT TEMP 27DEG G/W 141,600LB MAX IAS APPROX 75KTS. NR 1 EPR GAUGE DEFERRED PER MEL 77-1-1. DMI CONTROL 21585 CXAT A BY RPR, PLACARD INSTALLED. CLEJul 9, 2005 · N770AT · Boeing 7272B7SDR 0500959996Tube · failedDURING THE TAKEOFF ROLL, THE NR 1 ENGINE EPR INDICATION ROLLED BACK. THE TAKEOFF WAS ABORTED AT 120KTS. MAINTENANCE FOUND A FAILED TUBE IN THE PT7 MANIFOLD. THE TUBE WAS REPLACED AND THE LEAK CHECK WAS GOOD.Jun 23, 2005 · N8932E · Doug DC931SDR 05FDEA01501Unknown · malfunctionedENGINE NR 3 EPR SETTING WOULD NOT GO TO 2.13 WHEN SET TO MAX POWER FOR T/O. REJECTED T/O BELOW 60 KTS. MAX EPR ONLY REACHED 2.05 AT MECHANICAL STOPS. EXECUTED THE RTO PROCEDURES FROM THE QRH IN ACCORDANCE WITH PROCEDURES. PERFORMED WET MOTORED DRY MOTORED,Jun 1, 2005 · N220FE · Boeing 727200SDR C1HA200595007Connector · looseUPON APPLICATION OF T/O THRUST (FULL), NR 1 ENGINE WOULD NOT MAKE FULL EPR OF 2.14 ONLY 2.05. ALL OTHER PARAMETERS IN YELLOW ARC + POWER LEVER AT FORWARD STOP. ENGINES 2 + 3 POWER LEVERS APPROX 1 1/2 KNOBS BEHIND NR 1 POWER LEVER. (TEMP 31DEG C) ADJUSTED NRMay 5, 2005 · N295AS · Boeing 727290SDR ASMF200505005Computer · failedAIRCRAFT RETURNED TO PLATFORM AS A CONSEQUENCE OF LEFT ENGINE EPR INDICATOR WAS OUT OF SERVICE. EPR TRANSMMITER WAS REPLACED IAW MM 77-11-02, ENGINE WAS TESTED, ALL CORRECT.May 3, 2005 · N214AM · Doug DC987SDR ASMF200504022Computer · failedDURING TRANSIT CHECK, CAPTAIN REPORTED WRONG EPR'S INDICATION IN RIGHT ENGINE, IT JUST INDICATES 1. EPR'S TRANSMITTER WAS REPLACED AN DURING PNEUMATIC LEAK TESTS TO PT2 AND PT7 LINES WAS DETECTED PT7 FLEXIBLE LINE FROM PYLON TO RIGHT ENGINE DISCONNECTED. IT WApr 27, 2005 · N838AM · Doug DC983SDR GTIA050128Transmitter · faultyON DESCENT, RIGHT ENGINE N1 LOW AT FH IDLE AT 15,000 (38 PERCENT), DIFFERENCE DROPPED AT LOWER ALTITUDE, NOTE ENGINE PARAMETERS WITH THROTTLE AT IDLE STOPS, AIRCRAFT TAIL SWAP WITH 819. FOUND RIGHT ENGINE EPR READING LOW, REMOVED AND REPLACED RIGHT EPR TRANSMApr 15, 2005 · N835NK · Doug DC983SDR ASMF200503021Transmitter · failedAIRCRAFT RETURNED TO PLATFORM AS A CONSEQUENCE OF LEFT ENGINE EPR'S WERE IN 1.2. EPR INDICATOR EGG WERE REPLACED IAW MM 77-11-01 AND 77-11-02 RESPECTIVELY, TESTED CORRECT. ENGINE WAS TESTED IAW MM 71-00-00, ALL CORRECT.Mar 30, 2005 · N754RA · Doug DC987SDR IXXA0500016OIndicator · inoperativeCREW REJECTED TAKEOFF FROM RJTY, DUE TO LOW EPR ON NR 1 ENGINE. ALL OTHER PARAMETERS WERE NORMAL. CREW RETURNED AIRCRAFT TO BLOCKS. MAINTENANCE TROUBLESHOT TO A BAD EPR INDICATOR IN THE NR 1 POSITION. THE INDICATOR WAS REMOVED AND REPLACED AND THE OPERATIOMar 3, 2005 · N799AL · Doug DC862FSDR GTIA050051Gauge · defectiveWINDOW POPS WHEN IT PRESSURIZES AND LT EPR GAUGE ERRATIC READING TOP TO BOTTOM SCALE IN IDLE IN DESCENT, AIRCRAFT TAIL SWAP WITH 819NK. PRESSURIZED AC NO POP - OK FOR CONTINUED SERVICE, REMOVED AND REPLACED NR1 EPR GAUGE. OPS CHECK NORMAL. (K)Mar 2, 2005 · N811NK · Doug DC981SDR GTIA050038Line · brokenENGINE INDICATIONS DO NOT MATCH OBSERVED ENGINE PERFORMANCE WHEN OPERATING AT T/O POWER AND CRUISE, NR1 EPR IS BELOW EXPECTED. AIRCRAFT TAIL SWAP WITH 833. T/S NR 1 ENGINE AND FOUND NO LEAKS, PROBLEM SEEMS TO BE ON NR 2 ENGINE PT2 AND PT7 LINES, CHECKED OKAYFeb 23, 2005 · N811NK · Doug DC981SDR XN0A1223Unknown · unreliableON TAKEOFF ROLL NR 1 EPR UNRELIABLE. NR 1 EPR TO DMI 5047 IAW MEL 771 PLACARDS INSTALLED.Jan 8, 2005 · N76753 · Boeing 727200SDR CA050104004Line · contaminated(CAN) AIRCRAFT REJECTED TAKE OFF AT LESS THEN 40 KNOTS, DUE TO NR 2 ENGINE EPR DID NOT RESPOND TO THROTTLE MOVEMENT. MAINTENANCE FOUND WATER IN EPR LINE. MAINTENANCE BLEW AIR AND CLEANEDTHE EPR LINES PT7, PT2 IAW AMM 77-1 1-03, 77-11-04. ENGINE RUN CARRIED OUDec 30, 2004 · Doug DC983SDR CA050104003Indicator · inoperative(CAN) AIRCRAFT REJECTED TAKE OFF AT 65 KNOTS, DUE TO NR 2 ENGINE EPR GAUGE BEING INOPERATIVE. MAINTENANCE REMOVED EPR LINES AND FOUND WATER INU PIPE OF PT7. THE WATER WAS BLOWN OUT AND DRIED. ENGINE RUN CARRIED OUT, SYSTEM FOUND SERVICEABLE.Dec 30, 2004 · Doug DC983SDR GTIA040872Line · looseDTW - FLT 689 - ON TAKEOFF ROLL, AUTO THROTTLES ON SETTING NORMAL POWER LEFT ENGINE EPR 1.70 ONLY WHILE N1 WENT OT 103 PERCENT, EGT WAS 500 DEGREES, ABORTED TAKEOFF, AIRCRAFT SWAP. FOUND PT2 LINE IN NOSE BULLET CONNECTIONS ON BOTH ENDS LOOSE, TIGHTENED LINES,Dec 24, 2004 · N821NK · Doug DC982SDR CA041217005Transmitter · malfunctioned(CAN) DURING CRUISE, LT ENGINE EPR DROPPED TO 1.35 FOLLOWED BY AUTO THROTTLE DISCONNECT AND AIRCRAFT DECELERATION. EPR LINE INSPECTED, NO FAULTS FOUND. ENGINE RUN-UP CARRIED OUT AS PER AMM AND ENGINE PARAMETERS FOUND WITHIN LIMIT. THE PRESSURE TRANSMITTER WDec 15, 2004 · Doug DC983SDR P5CA0401279Indicator · no indicationNR 3 ENGINE HAS NO EPR INDICATION WHEN ACCELERATING. TRANSFERRED TO DMI 33386 PER MEL 77-04-1.Nov 17, 2004 · N921FT · Boeing 747283BSDR AWXA200401288Tube · chafedPHX - EMERGENCY LANDING - FLT 0568 - EN ROUTE FROM MCO TO PHX LT ENGINE EPR INDICATED HIGH, DECLARED EMERGENCY, EPR APPEARED NORMAL ON APPROACH AND LANDING. MAINTENANCE PERFORMED BITE TEST OF ELECTRONIC ENGINE CONTROL AND FOUND CODE 47, FOLLOWED FIM 73-21-00 Nov 16, 2004 · N908AW · Boeing 7572G7SDR 0411001Sense Line · looseDURING CLIMB ABOVE 20,000 FT, THE NR 2 ENGINE DID NOT INDICATE CLIMB THRUST (EPR).Nov 11, 2004 · N785TW · Doug DC915FSDR O2G2004F00006Line · leakingRT ENGINE WOULD NOT MAKE EPR OF THE DAY, RETORQUE P3 SPLITTER. PERFORMED ENGINE POWER RUN, OPS CK GOOD.Oct 14, 2004 · N624BP · Gulstm GIVSDR TSAA0477063Transmitter · inoperativeON TAKE-OFF ROLL THE NR 1 ENGINE ONLY INDICATED 1.76 EPR; THE THROTTLES WERE ADVANCED WITH NO RESPONSE FROM ANY INSTRUMENTS. REJECTED TAKE-OFF AND RETURNED TO GATE. REPLACED THE NR 1 ENGINE EPR TRANSMITTER AND CLEARED THE PT2 INLET PROBE OF DEBRIS. RAN NR 1 Aug 26, 2004 · N807AL · Boeing 7372T4SDR ASMF200408014Computer · failedAIRCRAFT ARRIVED TO THE STATION WITH CAPTAIN REPORT (1.5 OF EPR'S DIFFERENCE BETWEEN ENGINES). TECHNICAL PERSONNEL WERE SENT TO THE STATION AND DURING TROUBLESHOOTING ANALYSIS RT EPR RT TRANSMITTER WAS REPLACED AND WATER TRAMP WAS DRAINED IAW MM 77-11-02 AND 7Aug 16, 2004 · N158PL · Doug MD88SDR ASMF200408004Transmitter · malfunctionedAIRCRAFT REJECTED TAKE OFF AT 80 KNOTS AND RETURNED TO PLATFORM, HIGH TEMPERATURE OF EGT, REACHED 660 DEGREE (C) AND 1.57 OF EPR, ON LT ENGINE. ENGINE INLET AND OUTLET, CHIP DETECTOR AND MAIN OIL FILTER WERE CHECKED, BEING CORRECT. EPR TRANSMITTER WAS REPLACEAug 3, 2004 · N168PL · Doug MD88SDR AWXA200400841Transmitter · faultyON TAKEOFF ROLL AT LAS EN ROUTE FOR LAX NR 1 ENGINE TAKEOFF EPR ONLY REACHED 1.57, NR 2 ENGINE WAS NORMAL, REJECTED TAKEOFF AT 75 KTS. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE EPR TRANSMITTER IAW BMM 77-011-21-4. ENGINE RUN OPERATIONAL TEST WAS GOOD. VENAug 1, 2004 · N178AW · Boeing 737277SDR DHL2004765006Indicator · malfunctionedRTO FOR NR 1 ENGINE EPR GAUGE WOULD NOT ADVANCE PAST 1.6 EPR AND FLUCTUATED WILDLY. WEIGHT 180.0 IAS, 70 KTS OAT, 14 DEGREES C PA, 897 FT. DEFERRED NR 1 ENGINE EPR PER 77-1-1 CONTROL NR 17349 PLACARD INSTALLED DEFERRED BY 35840.Jul 28, 2004 · N765AT · Boeing 727264SDR TSAA0477057Transmitter · failedABORTED TAKE-OFF DUE TO LOW POWER INDICATION ON NR 1 ENGINE EPR. (NR 1 EPR=1.78, NR 2 EPR=2.01) RETURNED TO FREIGHT RAMP. LEAK CHECK NR 1 ENGINE PT7 SYSTEM, SYSTEM CHECKS GOOD. REPLACED NR 1 EPR. PERFORM POWER ASSURANCE CHECK IAW FORM M-215, OPS CHECK GOODJul 26, 2004 · N826AL · Boeing 737282CSDR DLM88040623Transmitter · failedUPON T/O LEFT EPR HUNG AT 1.6 WITH RAPIDLY RISING EGT, ABORTED AT 30 KNOTS. REPLACED EPR TRANSMITTER.Jul 3, 2004 · N992DL · Doug MD88SDR ARWA20040602Indicator · erraticLOG PAGE NR 107344, AFTER ALL ENGINES SPOOLED AND TAKEOFF STARTED NR 1 EPR (ENGINE PRESSURE RATIO) ERRATIC; DISCONTINUED TAKEOFF AND TAXIED BACK TO RAMP. TRANSFERRED TO DMI NR 18568 IAW MM. AIRCRAFT RELEASED IAW MEL NR 77-1-2 CAT (A). REMOVED AND REPLACED NRJun 19, 2004 · N906R · Doug DC863FSDR MWEA040100Transmitter · inoperativeLEFT EMERGENCY POWER RELAY INDICATOR LOW FLAGGED. REMOVED AND REPLACED EMERGENCY TRANSMITTER.Jun 16, 2004 · N809ME · Doug DC982SDR ASMF200405028Indicator · failedDURING TRANSIT CHECK RT ENGINE EPR INDICATOR WAS DETECTED OUT OF SERVICE AND AIRCRAFT WAS SENT TO THE HANGAR. DURING OVERNIGHT SERVICE PT2 HOSE WAS REPLACED IAW MM 77-11-01 AND LEAK CHECK WAS PERFORMED, ALL CORRECT. ENGINE RUNNING WAS PERFORMED AND PNEUMATIC LMay 28, 2004 · N881LF · Doug MD83SDR AWXA200400557Relay · failedABORTED TAKEOFF, FLT 0018, ON TAKEOFF AT PHX EN ROUTE FOR JFK AT 60 KTS NR 1 ENGINE INDICATED 1.390 EPR AND RT ENGINE INDICATED 1.401 EPR, TARGET TOGO WAS 1.401, REJECTED TAKEOFF AT 90 KTS. MAINTENANCE REMOVED AND REPLACED NR 1 ENGINE RELAY BOX (4100KS) IAW AMMay 21, 2004 · N636AW · Airbus A320231SDR AWXA200400491Line · contaminatedPHX - ABORTED TAKEOFF - FLT 0743 - ON TAKEOFF AT PHX EN ROUTE FOR CMH RECEIVED EPR MODE FAULT ON NR 1 ENGINE WITH THRUST BUMP SELECTED, REJECTED TAKEOFF 70 KTS. ISSUED MEL 73-20-04 COND 1, EPR MODE INOP. ON 05/08/2004 IN PHX MAINTENANCE FLUSHED MOISTURE OUT May 8, 2004 · N621AW · Airbus A320231SDR ASMF200405006Transmitter · failedAIRCRAFT SUSPENDED TAKE OFF AND RETURNED TO PLATFORM AS A CONSEQUENCE OF LOW TAKE OFF POWER ON RT ENGINE AND DURING TAXING RT ENGINE WITH STALLS. CAPTAIN REPORTED THAT PERFORMED TWO TAKE OFF INTENTS AND RT ENGINE DID NOT RESPOND. AIRCRAFT WAS SENT TO THE HANGMay 3, 2004 · N751RA · Doug DC987SDR ASMF200404005Hose · damagedDURING TRANSIT CHECK CAPTAIN REPORTED A DIFFERENCE OF 0.09 BETWEEN EPR´S, BEING LEFT BIGGER. AIRCRAFT WAS SENT TO THE HANGAR AND DURING OVERNIGHT SERVICE THE LEFT ENGINE PT2 HOSE WAS REPLACED AND CHECKED BY LEAKS IAW MM 77-11-01, TEST CORRECT.Apr 6, 2004 · N168PL · Doug MD88SDR P5CA0401058Transmitter · failedNR 1 ENG WOULD NOT PRODUCE TAKEOFF THRUST OF 1.53 EPR. DROPPED TO 1.45 EPR AT FWD THROTTLE STOP. ABORTED T/O. REPLACED EPR TRANSMITTER PER MM 77-11-02. ENGINE GROUND OPS CHECK OK PER MM 71-00-11 TEST NR 9.Mar 11, 2004 · N921FT · Boeing 747283BSDR AWXA200400174Warning System · false activationSEA - ABORTED TAKEOFF - FLT 0250 - DURING TAKEOFF AT SEA EN ROUTE FOR PHX AT APPROXIMATELY 80 KTS, SYNTHETIC VOICE CALLED FOR RETARD THROTTLES, EPR LOW AT 1.29, SHOULD BE 1.35 AT FLEX TEMP 40 DEGREES, REJECTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE RAN BOTFeb 13, 2004 · N631AW · Airbus A320231SDR CA040220005Transmitter · failed(CAN) TAKEOFF REJECTED DUE TO RT ENGINE EPR INDICATION INOPERATIVE. AIRCRAFT WAS DISPATCHED IAW MEL 77-1 FOR THE DAY. EPR TRANSMITTER REPLACED ON THE FOLLOWING DAY AND AIRCRAFT DISPATCHED SERVICEABLE.Feb 11, 2004 · Doug DC983SDR CA040128004Line · chafed(CAN) NR 1 ENGINE EPR INDICATION ERRATIC. FOUND PT7 LINE CHAFED ON LT WING LEADING EDGE AT WBL 114.0. ELBOW AT END OF LINE CONNECTION FOUND CRACKED. BOTH CHAFED LINE AND ELBOW REPLACED.Jan 27, 2004 · Boeing 737201SDR DHL2004747002Connector · failedNR 3 EPR GAUGE FAILED TO COME UP WHEN POWER APPLIED. (TOGW 144900, IAS 20 KTS, OAT -16 C, 500 FT PA, AND BRAKE ENERGY ZONE NORMAL). TRANSFERRED TO DMI LOG 15488 MEL REF 77-1-1. PLACARDS INSTALLED. REF. DMI 15488 - NR 3 EPR GAUGE FAILED TO COME UP WHEN POWERJan 23, 2004 · N747DH · Boeing 727224SDR CA040121001Transmitter · failed(CAN) DURING TAXI, IT WAS OBSERVED THAT THE NR 1 ENGINE EPR HAD NO INDICATION. THE AIRCRAFT WAS RETURNED TO THE RAMP. AFTER SOME TROUBLESHOOTING, MEL 77-01-01 WAS RAISED. THIS IS A 3 FLIGHT DAY, A CAT, MEL. THE AIRCRAFT WAS DISPATCHED.ON RETURN TO HOME BAJan 19, 2004 · Boeing 727225SDR DHL2004747001Indicator · inoperativeNR 3 EPR INDICATOR INOPERATIVE. WEIGHT: 156000, AIRSPEED: 40 KNOTS, AND OAT -22 C. DEFERRED NR 3 EPR PER MEL 77-1-1 CAT-A DMI 15408.Jan 16, 2004 · N747DH · Boeing 727224SDR TSAA0477018Circuit Breaker · trippedFLT 280 - HNL-KOA - ABORTED TAKEOFF DUE TO BOTH EPR GAUGES INOPERATIVE. C/B'S RESET, NO FLAGS. RAN BOTH NR 1 AND NR 2 ENGINE AFTER EPR C/B RESET. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)Jan 9, 2004 · N819AL · Boeing 73725ASDR 2003F00656Transmitter · failedNR 2 ENGINE ROLL BACK AT CRUISE ALTITUDE, ENROUTE. AIRCRAFT DIVERTED AND LANDED UNEVENTFULLY. PLACED NR 2 ENGINE EEC ON MEL 4013. CONTINUED ON, TROUBLESHOT SYSTEM AND FOUND NR 2 ENGINE EPR TRANSMITTER FAULTY. REMOVED AND REPLACED TRANSMITTER IAW BMM 77-11Dec 8, 2003 · N521NA · Boeing 757236SDR AMTA200301408Transmitter · malfunctionedDURING CLIMB LEFT ENGINE POWER FLUCTUATES. OPERATION WITH EEC OFF NOT CHECKED DURING CLIMB. CRUISE OPS NORMAL. ON DESCENT ENGINE UNSTABLE WITH EEC OFF. REMOVED AND REPLACED LEFT ENGINE EPR X-MITTER PER MM 77-11-01-4. OP CHECK GOOD. (M)Nov 20, 2003 · N558TZ · Boeing 75733NSDR MWEA030307Catcher · pluggedADDING POWER FOR TAKE-OFF THE ENGINE PRESSURE RATIO WAS AT 1.80. UNPLUGGED TRAP ASSY- CONDENSATION LEAK CHECK GOOD.Aug 13, 2003 · N806ME · Doug DC981SDR SWAA031582Sense Line · faultyAIR TURNBACK, NR 1 ENGINE EPR HIGH INDICATIONS AT ALTITUDE. REMOVED AND REPLACED NR 1 ENGINE EPR PT2 SENSING LINE AT ENGINE NOSE DOME PER MM.Jul 17, 2003 · Boeing 7372H4SDR DLM88030624O-Ring · deterioratedRT EPR INDICATES HIGH ALL OTHER INDICATIONS NORMAL WITH THROTTLES ALLIGNED AT 15,000 FT 20 DEG TAT RT EPR IND 1.9 AND LT EPR IND 1.4. RAN ALT TEST OF ENGINE PRESSURE RATIO INDICATING SYSTEM PER AMM OPN CKS OK. FOUND O-RINGS ON NOSE BULLET PROBE IN POOR CONDIJul 10, 2003 · N914DE · Doug MD88SDR XNOA01132Probe · pluggedABORTED T/O AT 100 KNOTS DUE TO HIGH EPR ON NR 1 ENG. ALL PARAMETERS WERE LOW. ALL OTHER NR 1 ENG PARAMETERS DID NOT MATCH NR 2 AND NR 3. INSPECTED AND FOUND NR 1 ENG PT'S PROBE PLUGGED. CLEANED OUT PROBE AND INSTALLED NOSE DOME IAW B727 MM 71-10-41. PERFJun 10, 2003 · N793A · Boeing 727227SDR DHL2003746008Indicator · inoperativeAFTER CLEARED FOR TAKEOFF NR 1 EPR GAGE DID NOT RESPOND TO THRUST LEVER MOVEMENT ALL OTHER INDICATIONS ARE NORMAL. NR 1 ENGINE EPR SYSTEM INOPERATIVE PER MEL 77-1-1 CAT. "A". DMI 13006 C/W SPECIAL REQUIREMENTS PER 77-1. AIRCRAFT OK FOR SERVICE. REF. DMI 130May 20, 2003 · N746DH · Boeing 727224
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