# JASC 7100: Powerplant System - Type: JASC system/component code (FAA) - ATA chapter: 71 Powerplant - Title in the code table: POWERPLANT SYSTEM - Service difficulty reports: 634 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=60 - Page: https://openairdocs.org/jasc/7100 ## What it covers For general reports concerning the powerplant package. Avoid the use of this code if enough information is provided to file in a more specific JASC 7100 series code. ## Service difficulty reports (634, newest 50) - [SDR 2026FA0000712](https://openairdocs.org/sdr/2026FA0000712), Sep 15, 2026: Urocop EC135P2. SUMP. FULL. AT APPROX 2030, PILOT REPORTED, DURING THE INITIAL TAKEOFF, HE & CREW BRIEFLY HEARD AN UNUSUAL HUMMING SOUND. ELECTED TO (N911ET) - [SDR EE4Y2026090824949](https://openairdocs.org/sdr/EE4Y2026090824949), Sep 8, 2026: Emb ERJ190100IGW. THRUST REVERSER. SCRATCHED. DURING THE CURRENT MAINTENANCE A DEFECT WAS REPORTED IN COMPONENT T/R OUTBD P/N: 601E0100-542, S/N: MR-ER-0575. VERIFIED (N306JB) - [SDR JJBA20260702001](https://openairdocs.org/sdr/JJBA20260702001), Jul 1, 2026: Emb EMB145XR. ENGINE. SHUTDOWN. ENGINE 1 SHUTDOWN IN FLIGHT DURING CLIMB. REMOVED AND REPLACED ENGINE NR 1. OPS/LEAK CHECK SAT. (N14177) - [SDR MTNA2026061200001](https://openairdocs.org/sdr/MTNA2026061200001), Jun 9, 2026: Aerosp ATR72212. PCU. BROKEN. DURING CLIMB OUT, EXPERIENCED LOSS OF OIL PRESSURE FROM #2 ENGINE, SHUT DOWN #2 ENGINE AND RETURNED TO FIELD WITHOUT FUR (N821FX) - [SDR 2026FA0000167](https://openairdocs.org/sdr/2026FA0000167), Feb 25, 2026: Cessna 172S. CYLINDER HEAD. CRACKED. ENGINE WAS REPORTED RUNNING ROUGH, WAS FOUND TO HAVE A CRACK ON THE CYLINDER HEAD ON #4 CYLINDER. THE SAME PROBLEM WAS F (N212BS) - [SDR N3XR202602260001](https://openairdocs.org/sdr/N3XR202602260001), Feb 25, 2026: Diamon DA42NG. PULLEY. FAILED. DURING MAINTENANCE, THE CRANK PULLEY, WAS DISCOVERED FAILED. THE CENTER DISC HAD BECOME SEPARATED FROM THE OUTER PULLEY (N302ER) - [SDR 2025FA0000754](https://openairdocs.org/sdr/2025FA0000754), Oct 28, 2025: Snias AS350BA. CAPACITOR. BROKEN. DURING ROUTINE FLIGHT OPERATION THERE WAS A SUDDEN DECREASE IN ENGINE POWER AND A RISE IN VIBRATION WAS FELT, SO THE AIR (N61HL) - [SDR AALA202510301497](https://openairdocs.org/sdr/AALA202510301497), Oct 28, 2025: Boeing 737823. ENGINE. CONTAMINATED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ODOR THROUGHOUT THE WHOLE CABIN. AIRCRAFT AIR INTERRUPTED BACK (N342PM) - [SDR QR9R2025102100001](https://openairdocs.org/sdr/QR9R2025102100001), Oct 21, 2025: Bolkms BK117C2. MODULE. DAMAGED. THE MOD 05 ASSEMBLY WAS RECEIVED FROM SUPPLY UNSERVICEABLE DUE TO DAMAGED DOWEL PIN. - [SDR TAMF20250708052](https://openairdocs.org/sdr/TAMF20250708052), Aug 1, 2025: Airbus A330243. ENGINE. FAILED. DURING THE TAKE-OFF ROLL, A THRUST LOSS OCCURRED ON ENGINE NO. 2, ALONG WITH AN ABNORMAL INDICATION FROM THE ENGINE ANTI (N332QT) - [SDR QMLA202507262079](https://openairdocs.org/sdr/QMLA202507262079), Jul 19, 2025: Pilats PC1245. COWLING. FAILED. A HAMMER WAS DISCOVERED ON THE ENGINE COWING DURING TAKEOFF AS IT ROLLED ONTO THE WINDSCREEN DURING TAKEOFF. SDR FORM SU (N637PC) - [SDR 2025FA0000349](https://openairdocs.org/sdr/2025FA0000349), May 9, 2025: Beech F33A. RETAINING CLIP. WORN. COWLING - RIGHT SIDE - HOLD OPEN LATCH/LEVER SLIPPED LOOSE IN FLIGHT AND FELL DOWN ON BATTERY MASTER RELAY CAUSING A SHO (N4147S) - [SDR 1AZA2025F00117](https://openairdocs.org/sdr/1AZA2025F00117), May 6, 2025: Cessna 208B. ENGINE. ABNORMAL. ENGINE CHIP DETECTOR LIGHT ILLUMINATED IN FLIGHT,. LOW OIL PRESSURE LIGHT ILLUMINATED, LOW OIL PRESSURE INDICATED. POST- (N867HP) - [SDR SWAA2025041523718](https://openairdocs.org/sdr/SWAA2025041523718), Apr 11, 2025: Boeing 7377BD. BRACKET. CRACKED. #2 ENG. HIGH STAGE REGULATOR BRACKET HAS A CRACK. (N7734H) - [SDR 2024FA0000800](https://openairdocs.org/sdr/2024FA0000800), Oct 31, 2024: Doug MD11F. COMPRESSOR. STALLED. DISCREPANCY: ENGINE #2 SUSPECTED COMPRESSOR STALL DURING ROTATION. CA: OPEN (N545JN) - [SDR FXGA20241021001](https://openairdocs.org/sdr/FXGA20241021001), Oct 17, 2024: Textrn 408. ENGINE. DAMAGED. INERTIAL SEPARATOR ACTUATOR TOP ATTACHMENT ROD END LOOSENED AND BECAME EXCESSIVELY LOOSE ON BOTH LEFT AND RIGHT ENGINES. (N408RE) - [SDR HNAA2024090300711](https://openairdocs.org/sdr/HNAA2024090300711), Aug 31, 2024: Emb EMB145LR. ENGINE. BIRD INGESTION. DURING APPROACH #1 ENGINE FLAMED OUT AFTER BIRD STRIKE. #1 ENGINE R+R IAW W/C 71-00-00. OPS CHECK AND LEAK CHECK GOOD. O (N939AE) - [SDR 2024FA0000598](https://openairdocs.org/sdr/2024FA0000598), Aug 13, 2024: Cessna 172S. SKIN. CRACKED. UPPER COWL CRACKED THROUGH SKIN AND DOUBLER NEAR APU DOOR. (UPPER COWL SPLIT) (N361L) - [SDR 2024FA0000597](https://openairdocs.org/sdr/2024FA0000597), Aug 13, 2024: Cessna 172S. SKIN. CRACKED. UPPER COWL CRACKED THROUGH SKIN AND DOUBLER NEAR APU DOOR. (UPPER COWL SPLIT) (N362LU) - [SDR COEA2024061221757](https://openairdocs.org/sdr/COEA2024061221757), Jun 10, 2024: Textrn 408. ARM. CRACKED. WO 258442 NR 3 DISCREPANCY: DURING A SCHEDULED INSPECTION, IT WAS DISCOVERED THAT THE R/H INERTIAL SEPERATOR FWD ARM IS (N757FX) - [SDR COEA2024061220757](https://openairdocs.org/sdr/COEA2024061220757), Jun 10, 2024: Textrn 408. ARM. CRACKED. WO 258442 NR 2 DISCREPANCY: DURING A SCHEDULED INSPECTION, IT WAS DISCOVERED THAT THE L/H INERTIAL SEPERATOR FWD ARM IS (N757FX) - [SDR NACA2024010700001](https://openairdocs.org/sdr/NACA2024010700001), Jan 7, 2024: Boeing 7673BG. LINER. DAMAGED. FAN EXIT LINER OUTER SEGMENT #4 DAMAGED. REMOVED DAMAGED PANEL. DEFERRED MISSING PANEL PER DMI 72-34 REF AMM 72-34-01 TA (N565NC) - [SDR DALA2024010500181](https://openairdocs.org/sdr/DALA2024010500181), Jan 4, 2024: Boeing 767332. UNKNOWN. UNKNOWN. SHIP 1601 -DIV/IFFO- AIRCRAFT DIVERTED TO NRT DUE TO OIL PRESSURE INDICATING 0 AND HIGH VIBES. NBR 1 ENGINE AUTO SHUTDOW (N169DZ) - [SDR 3M3A202401060001](https://openairdocs.org/sdr/3M3A202401060001), Jan 1, 2024: Hughes 369D. UNKNOWN. UNKNOWN. ON JANUARY 1ST 2024, N514PA EXPERIENCED AN ENGINE CHIP LIGHT DURING A 135 TOUR FLIGHT. THE PILOT MADE A PRECAUTIONARY LA (N514PA) - [SDR SWAA2023122634993](https://openairdocs.org/sdr/SWAA2023122634993), Dec 22, 2023: Boeing 7378H4. ENGINE. DAMAGED. AFTER TAKEOFF INGESTED A BIRD IN THE #1 ENGINE. ENGINE VIBRATION WENT UP TO 4.3 ALONG WITH FLASHING WHITE BOX. ALSO SMEL (N8567Z) - [SDR IPXA2023122288826](https://openairdocs.org/sdr/IPXA2023122288826), Dec 21, 2023: Boeing 75724APF. OIL SYSTEM. ABNORMAL. *** DIVERSION *** *** IFSD *** IN CRUISE, RT OIL PRESSURE 0, OIL PRESS RED (APPROX 45) QRH PROCEDURE FOLLOWED, ENG SHUTD (N410UP) - [SDR 2023FA0000841](https://openairdocs.org/sdr/2023FA0000841), Dec 4, 2023: Piper PA28180. COWLING. FAILED. UPPER COWLING BROKE AWAY FROM AIRCRAFT DURING FLIGHT. AFTER INSPECTING THE AIRCRAFT, IT SEEMS THE FRONT PIN BROKE OFF TH (N9166J) - [SDR SWAA2023113025600](https://openairdocs.org/sdr/SWAA2023113025600), Nov 28, 2023: Boeing 7378H4. COWLING. CRACKED. #1 ENGINE I/B FAN COWL ; AFT UPPER CORNER HAS A CRACK 2.7 IN. LENGTH.<[01] PERFORMED HFEC INSPECTION OF THE REPAIR AREA (N500WR) - [SDR 2023F00327](https://openairdocs.org/sdr/2023F00327), Nov 13, 2023: Cessna 680CE. COWLING. DELAMINATED. RH ENGINE UPPER COWL FWD INB EDGE DAMAGED. ACCOMPLISHED TEXTRON AVIATION ENGINEERING LETTER DQ41994M1 DATED NOVEMBER 12, (N342QS) - [SDR 4MZA20231109060](https://openairdocs.org/sdr/4MZA20231109060), Nov 8, 2023: Amazon MK272. MOTOR. UNKNOWN. ON WEDNESDAY, NOVEMBER 8TH, SERIAL NUMBER 000797 N775PA WAS CONDUCTING A PACKAGE DELIVERY IN LOCKEFORD, CA. AFTER A NOMI (N775PA) - [SDR SWAA2023110617133](https://openairdocs.org/sdr/SWAA2023110617133), Nov 2, 2023: Boeing 7378H4. ENGINE. SHUTDOWN. AT FL 190 NOTICED QUANTITY DROPPING ( INDICATOR IN REVERSE ) WE MONITORED CLOSELY BUT ALL OTHER INDICATIONS NORMAL. IN D (N8328A) - [SDR IPXA2023110702902](https://openairdocs.org/sdr/IPXA2023110702902), Oct 22, 2023: Airbus A300F4622R. INTAKE. CRACKED. NR 2 ENGINE INLET COWL HAS A POSSIBLE CRACK ON O/B SIDE AT PNEUMATIC LINE CONNECTION. NSTALLED FABRICATED PIECE AND RETU (N161UP) - [SDR IPXA2023110745929](https://openairdocs.org/sdr/IPXA2023110745929), Oct 18, 2023: Airbus A300F4622R. INTAKE. CRACKED. NUMBER ONE ENGINE INLET COWL HAS A CRACK ON THE OUTBOARD SIDE AT THE PNEUMATIC LINE CONNECTION. INSTALLED REPLACEMENT WE (N161UP) - [SDR IPXA2023100410733](https://openairdocs.org/sdr/IPXA2023100410733), Sep 29, 2023: Boeing 75724APF. ENGINE. SURGES. ATB ON CLIMB OUT RT ENGINE HAD SOME SURGING WITH HIGHER GET THAN LEFT ENGINE. IN CRUISE, SETTLED DOWN NORMAL. DISPATCH I (N456UP) - [SDR IPXA2023093000733](https://openairdocs.org/sdr/IPXA2023093000733), Sep 29, 2023: Boeing 75724APF. UNKNOWN. UNKNOWN. ATB, ON CLIMB OUT RT ENGINE HAD SOME SURGING WITH HIGHER GET THAN LEFT ENGINE. IN CRUISE, SETTLED DOWN NORMAL. DISPATCH (N456UP) - [SDR 4MZA20230918057](https://openairdocs.org/sdr/4MZA20230918057), Sep 11, 2023: Amazon MK272. MOTOR. UNKNOWN. DURING DESCENT TO LANDING, AIRCRAFT SELF-INITIATED A SHUTDOWN OF THE CENTER RIGHT (#2) MOTOR, WITH ASSOCIATED HEALTH ALE (N785PA) - [SDR YENA2023090601047](https://openairdocs.org/sdr/YENA2023090601047), Sep 5, 2023: Airbus A320232. UNKNOWN. UNKNOWN. FLT#2102, FLL-JFK. 'ENG #2 INLET STRUCK BY GO; REMOVED AND REPLACED NO. 2 ENG AIR INTAKE COWL IAW AMM 71-11-11. LEAK CHE (N768JB) - [SDR IPXA2023092094210](https://openairdocs.org/sdr/IPXA2023092094210), Sep 1, 2023: Airbus A300F4622R. ANCHOR. CRACKED. INSPECTION TYPE:1C1 ENG O/B SIDE OF INLET AREA PT2 LINE ANCHOR POINT IS CRACKED IN SHEET METAL (BULKHEAD)FABRICATED REPA (N163UP) - [SDR SWAA2023090792871](https://openairdocs.org/sdr/SWAA2023090792871), Aug 23, 2023: Boeing 7377H4. INLET. CRACKED. CRACK ON HOLE OF LIP INLET COWL LOC. 1 OCLOCK LT ENGINE 2023-490779<[01] TOOL USED: EDDY CURRENT FLAW DETECTOR; P/N: NOR (N225WN) - [SDR 2023FA0000462](https://openairdocs.org/sdr/2023FA0000462), Aug 21, 2023: Robsin R22BETAII. CYLINDER. UNKNOWN. LYCOMING FACTORY OVERHAULED O-360-J2A. HIGH OIL CONSUMPTION, FOULED SPARK PLUGS, POWER LOSS. FOUND #2 CYLINDER TO HAVE S (N115L) - [SDR 2023FA0000435](https://openairdocs.org/sdr/2023FA0000435), Aug 18, 2023: Diamon DA40NG. ENGINE. MISMANUFACTURED. REPEATED ENGINE ROUGHNESS ISSUES - (1) ENGINE ROUGHNESS W/ OSCILLATING RPM AND VERY AGGRESSIVE JOLTING AT 75% CRUISE POW (N403BL) - [SDR IPXA2023080293784](https://openairdocs.org/sdr/IPXA2023080293784), Aug 2, 2023: Airbus A300F4622R. PANEL. CRACKED. INSPECTION TYPE:CENG 2 OB C DUCT PANEL HAS A CRACKFABRICATED AND REPLACED PANEL IAW SRM 54-56-10 (N134UP) - [SDR ABXA20230725147](https://openairdocs.org/sdr/ABXA20230725147), Jul 21, 2023: Boeing 767231. UNKNOWN. UNKNOWN. CREW REPORTED 2 FAILED START ATTEMPTS ON RIGHT ENGINE. AIRCRAFT BACK TO BLOCK AND GROUNDED BY MAINTENANCE. MAINTENANCE P (N650GT) - [SDR CALA2023071902276](https://openairdocs.org/sdr/CALA2023071902276), Jul 17, 2023: Boeing 757224. SWITCH. INOPERATIVE. DUE TO ENGINE # 2 SURGE EVENT ACCOMPLISH FIM 71-06 TASK 812 ACCOMPLISHED TASK 1-11 BVCU F1 04 AND TPU F0 40 WERE PRESENT (N13138) - [SDR DALA2023070605485](https://openairdocs.org/sdr/DALA2023070605485), Jul 5, 2023: Boeing 757232. UNKNOWN. UNKNOWN. SHIP 693 -ATO- DISCONTINUED TAKEOFF LESS THAN 30 KNOTS DUE TO RIGHT ENGINE HAD NO THROTTLE RESPONSE. CORRECTIVE ACTION: (N693DL) - [SDR COEA2023070504956](https://openairdocs.org/sdr/COEA2023070504956), Jul 3, 2023: Cessna 208B. UNKNOWN. UNKNOWN. FLIGHT 7677/ DISCREPANCY: AFTER LANDING IN MFR AND DURING SHUTDOWN, THE PILOT NOTICED FLAMES COMING OUT FROM UNDER THE R (N956FE) - [SDR NACA202307070029](https://openairdocs.org/sdr/NACA202307070029), Jul 1, 2023: Boeing 767323. UNKNOWN. UNKNOWN. NO.2 ENG LPT COOLING MANIFOLD AT 5 O'CLOCK FOUND BROKEN. REMOVED AND REPLACED NO.2 ENG LPT COOLING MANIFOLD AT 5 O'CLOCK (N399CM) - [SDR NACA202307070026](https://openairdocs.org/sdr/NACA202307070026), Jul 1, 2023: Boeing 767323. UNKNOWN. UNKNOWN. FOUND NO.1 ENG LPT COOLING AIR MANIFOLD TUBE BROKEN AT 1 O`CLOCK. REMOVED AND REPLACED NO.1 ENG LPT COOLING AIR MANIFOLD (N399CM) - [SDR NACA202307070022](https://openairdocs.org/sdr/NACA202307070022), Jul 1, 2023: Boeing 767323. UNKNOWN. UNKNOWN. NO.2 ENG COOLING MANIFOLD SUPPORT LINK AT HPT 2 O'CLOCK FOUND WORN. REMOVED AND REPLACED NO.2 ENG COOLING MANIFOLD SUPPO (N399CM) - [SDR NACA20230707016](https://openairdocs.org/sdr/NACA20230707016), Jul 1, 2023: Boeing 767323. UNKNOWN. UNKNOWN. NO.2 ENG NOSE COWL L/E SKIN AT 10 O'CLOCK FOUND CORROSION. MEASURED THE REWORKED AREA AFT CORROSION REMOVALS, DEPTH OF C (N399CM) All 634: https://openairdocs.org/jasc/7100/reports.md ## Airworthiness concern sheets (3) - [AIR760-2007-21-S-7100-ACS](https://openairdocs.org/acs/AIR760-2007-21-S-7100-ACS): Firewall Sealant. Issued Nov 19, 2007 - [AIR760-2007-20-S-7100-ACS](https://openairdocs.org/acs/AIR760-2007-20-S-7100-ACS): Cracks in the Engine Mount. Issued Nov 6, 2007 - [AIR760-2006-01-S-7120-ACS](https://openairdocs.org/acs/AIR760-2006-01-S-7120-ACS): Original Engine Mounting Brackets. Issued May 11, 2006 ## Other codes in chapter 71 - [JASC 7110](https://openairdocs.org/jasc/7110): Engine Cowling System (2,324 reports) - [JASC 7111](https://openairdocs.org/jasc/7111): Engine Cowl Flaps (57 reports) - [JASC 7112](https://openairdocs.org/jasc/7112): Engine Air Baffle Section (27 reports) - [JASC 7120](https://openairdocs.org/jasc/7120): Engine Mount Section (3,028 reports) - [JASC 7130](https://openairdocs.org/jasc/7130): Engine Fireseals (66 reports) - [JASC 7160](https://openairdocs.org/jasc/7160): Engine Air Intake System (1,161 reports) - [JASC 7170](https://openairdocs.org/jasc/7170): Engine Drains (130 reports) - [JASC 7197](https://openairdocs.org/jasc/7197): Powerplant System Wiring (32 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.