# JASC 6110: Propeller Assembly - Type: JASC system/component code (FAA) - ATA chapter: 61 Propeller/Propulsors - Title in the code table: PROPELLER ASSEMBLY - Service difficulty reports: 1,590 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=55 - Page: https://openairdocs.org/jasc/6110 ## What it covers For reports of propeller assembly malfunctions excluding controlling aspects, with insufficient information to file in a more specific JASC 6100 series code, or for conditions which affect two or more parts of the propeller such as hub and blades. Includes the propeller retaining nut, etc. ## Service difficulty reports (1,590, newest 50) - [SDR 2026FA0000749](https://openairdocs.org/sdr/2026FA0000749), Sep 21, 2026: Cessna 172S. PROPELLER. MISINSTALLED. PROPELLER INSTALLED INCORRECTLY AT THE FACTORY, INCORRECT CLOCKING CAUSING PROPELLER BUSHINGS TO BACK OUT: THE PROPELLER (N848FG) - [SDR 2026FA0000215](https://openairdocs.org/sdr/2026FA0000215), Mar 26, 2026: Cessna 172N. BULKHEAD. CRACKED. DURING 100HR INSPECTION, FOUND FORWARD PROPELLER BULKHEAD CRACKED AT ONE BOLT HOLE LOCATION. PART HAD 297 HRS TOTAL TIME (N738PV) - [SDR 2026FA0000176](https://openairdocs.org/sdr/2026FA0000176), Feb 26, 2026: Cessna 172K. BULKHEAD. CRACKED. FOUND FORWARD PROPELLER BULKHEAD P/N 0550321-4 CRACKED AT ONE BOLT HOLE LOCATION. (N7351G) - [SDR 7CUR20260126001](https://openairdocs.org/sdr/7CUR20260126001), Jan 26, 2026: Lkheed C130H. BLADE. LEAKING. DURING MAINTENANCE, A LEAKING PROPELLER BLADE WAS FOUND. PROPELLER ASSEMBLY REMOVED AND REPLACED. DISASSEMBLY REVEALED O (N132CG) - [SDR 2026FA0000184](https://openairdocs.org/sdr/2026FA0000184), Dec 2, 2025: Cessna 172S. BULKHEAD. CRACKED. FOUND REPLACEMENT SPINNER BULKHEAD CRACKED AT BOLT HOLES AFTER 485 HOURS OF SERVICE. (N959JA) - [SDR 2026FA0000181](https://openairdocs.org/sdr/2026FA0000181), Aug 19, 2025: Cessna 172M. BULKHEAD. CRACKED. FOUND SPINNER BULKHEAD CRACKED 273 HRS. REPLACED BULKHEAD WITH NEW P/N: 0550321-4 (N73345) - [SDR 2026FA0000187](https://openairdocs.org/sdr/2026FA0000187), Apr 18, 2025: Cessna 172S. BULKHEAD. CRACKED. SPINNER BULKHEAD DISCOVERED CRACKED AFTER A COMPANY MAINT SAFETY STAND DOWN WHEN OTHERS IN OUR FLEET WERE FOUND CRACKED (N298ME) - [SDR 2026FA0000185](https://openairdocs.org/sdr/2026FA0000185), Apr 17, 2025: Cessna 172S. BULKHEAD. CRACKED. INSPECTED SPINNER BULKHEAD FOR CRACKS DURING A FLEET SAFETY STAND DOWN AFTER DISCOVERING CRACKS IN SPINNER BULKHEADS OF (N364SP) - [SDR 2026FA0000180](https://openairdocs.org/sdr/2026FA0000180), Apr 17, 2025: Cessna 172M. BULKHEAD. CRACKED. DURING A FLEET WIDE SAFETY STAND DOWN. REMOVED SPINNER TO INSPECT FRONT PROPELLER BULKHEAD FOR CRACKS. FOUND CRACKS AT B (N73345) - [SDR 2026FA0000177](https://openairdocs.org/sdr/2026FA0000177), Apr 16, 2025: Cessna 172N. BULKHEAD. CRACKED. DURING 100HR INSPECTION. FOUND FORWARD SPINNER BULKHEAD P/N: 0550321-4 (N738PV) - [SDR 2026FA0000182](https://openairdocs.org/sdr/2026FA0000182), Apr 12, 2025: Cessna 172S. A/C PACK. CRACKED. DURING A COMPANY SAFETY STAND DOWN FOR SPINNER BULKHEAD CRACKS.. FOUND SPINNER BULKHEAD CRACKS AT PROPELLER BOLT HOLES. (N959JA) - [SDR 2024FA0000621](https://openairdocs.org/sdr/2024FA0000621), Jul 22, 2024: Cessna 441. PROPELLER. SHUTDOWN. PERFORMED INFLIGHT ENGINE SHUTDOWN BEFORE RELEASE TO SERVICE AS REQUIRED AFTER ENGINE HOT SECTION INSPECTION AND ENGINE - [SDR EY2R2024071200001](https://openairdocs.org/sdr/EY2R2024071200001), Jul 12, 2024: Emb EMB120. HUB. CRACKED. A SMALL CRACK WAS FOUND AT ONE OF THE TWO DOWEL PIN LOCATIONS ON THE PROPELLER HUB MOUNTING FLANGE. THE CRACK APPEARS TO - [SDR LR7A2023122703338](https://openairdocs.org/sdr/LR7A2023122703338), Dec 27, 2023: Lkheed 382G. SEAL. DAMAGED. DURING SCHEDULED FLIGHT #3 AND #4 PROP LOW OIL LIGHT CAME ON SIMULTANEOUSLY FOLLOWED BY RPM FLUXING OUT OF LIMITS WITHIN (N407LC) - [SDR 2023FA0000762](https://openairdocs.org/sdr/2023FA0000762), Nov 16, 2023: Cirrus SR22T. SPRING. DESTROYED. PROPELLER EXHIBITED SEVERAL LOOSE BLADES IN THE HUB UPON INSPECTION AFTER PICKUP FROM THE FACTORY SERVICE CENTER IN KNOX (N305MS) - [SDR BV5Y202311230001](https://openairdocs.org/sdr/BV5Y202311230001), Nov 6, 2023: FERRULE. CRACKED. DURING MAINTENANCE A PROPELLER WAS FOUND WITH CRACKS IN ONE BLADE FERRULE. THE PROPELLER IS REPLACED. THE PROPELLER WILL (N2A) - [SDR 2023FA0000419](https://openairdocs.org/sdr/2023FA0000419), Aug 15, 2023: Piper PA28181. BULKHEAD. CRACKED. AIRCRAFT PROPELLER FWD BULKHEAD CRACKED AT BOLT HOLES. SPINNER NEW, INSTALLED AT FACTORY. PROPELLER DYNAMICALLY BALANCED (N547SC) - [SDR 2023FA0000315](https://openairdocs.org/sdr/2023FA0000315), Apr 27, 2023: Piper J3C*. PROPELLER. BROKEN. ABOUT FIVE INCHES OF PROPELLER BLADE #1 SEPARATED FROM TIP DURING FLIGHT REQUIRING AN IMMEDIATE EMERGENCY LANDING. (N6384H) - [SDR 2022FA0000462](https://openairdocs.org/sdr/2022FA0000462), Aug 18, 2022: Cirrus SR22T. NONE. NONE. FLIGHT WALK AROUND NOTICED PROP WAS DAMAGED. SHOP WILL TAKE ACTIONS TO REPAIR PLANE IN COMING WEEKS. NO DEFECT IN ANY PA (N191JB) - [SDR QXEA2022041400154](https://openairdocs.org/sdr/QXEA2022041400154), Apr 13, 2022: Bombdr DHC8402. PUMP. MALFUNCTIONED. UNABLE TO UNFEATHER #2 PROP USING UNFEATHER SWITCH ON CDS MAINTENANCE PANEL. REMOVED #2 FEATHERING PUMP IAW Q400 AMM TAS (N445QX) - [SDR QXEA2022013100042](https://openairdocs.org/sdr/QXEA2022013100042), Jan 29, 2022: Bombdr DHC8402. PCU. NONE. DURING DESCENT #1 PROP RPM DROPPED TO 820 THEN QUICKLY STABILIZED AT 850. POWERPLANT MSG DISPLAYED. HAPPENED BETWEEN 11, (N432QX) - [SDR P15R20220107001](https://openairdocs.org/sdr/P15R20220107001), Jan 7, 2022: Piper J3. PROPELLER. BROKEN. PROPELLER IN SERVICE SINCE 2015/100 HOURS. METAL TIPPING REPLACED DEC 2021. DURING INITIAL CLIMB AFTER REINSTALLATION, C - [SDR QXEA2021100800466](https://openairdocs.org/sdr/QXEA2021100800466), Oct 6, 2021: Bombdr DHC8402. NONE. NONE. DURING CLIMB, NOTICED BOTH YOKES VIBRATING EXCESSIVELY, SIMILAR TO TAXIING ON ROUGH SURFACE. WHEN FINGER PRESSURE WAS AP (N403QX) - [SDR LR7A2021031202802](https://openairdocs.org/sdr/LR7A2021031202802), Mar 12, 2021: Lkheed 382G. PROPELLER. LEAKING. DURING SCHEDULED FLIGHT #1 LOW PROP OIL LIGHT ILLUMINATED. ENGINE SHUTDOWN. EMERGENCY DECLARED. AIR TURNBACK. / REPLACED (N402LC) - [SDR LR7A2021030202801](https://openairdocs.org/sdr/LR7A2021030202801), Mar 2, 2021: Lkheed 382G. SEAL. LEAKING. DURING SCHEDULED FLIGHT #1 LOW PROP OIL LIGHT ILLUMINATED. ENGINE SHUTDOWN. EMERGENCY DECLARED. / REPLACED FRONT AND REA (N402LC) - [SDR QXEA2021030200096](https://openairdocs.org/sdr/QXEA2021030200096), Feb 27, 2021: Bombdr DHC8402. LINER. OUT OF LIMITS. BOTH CONTROL YOKES BEGAN SHAKING/VIBRATING DURING CLIMB OUT, AS WE ACCELERATED FROM ~ 210-240 KNOTS. IT THEN STABILIZED, (N426QX) - [SDR QXEA2020110200307](https://openairdocs.org/sdr/QXEA2020110200307), Oct 29, 2020: Bombdr DHC8402. PROPELLER. VIBRATION. VIBRATIONS WERE FELT DURING CLIMB OUT. THEY WERE MORE NOTICEABLE WHEN CONDITION LEVERS WERE AT 1020 AND 900. VIBRATIONS (N404QX) - [SDR 9VNR20200929001](https://openairdocs.org/sdr/9VNR20200929001), Sep 28, 2020: Piper PA28235. BOLT. SHEARED. OWNER REPORTED OIL LEAK IN FRONT END OF ENGINE. UPON INVESTIGATION IT APPEARED TO BE SHAFT SEAL LEAK. REMOVED PROPELLER (N9394W) - [SDR QXEA2020072300218](https://openairdocs.org/sdr/QXEA2020072300218), Jul 21, 2020: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. DURING CLIMB, NOTICEABLE VIBRATION IN CONTROL YOKE, MADE WORSE DURING ANY CONTROL INPUT. WAS MUCH IMPROVED AT CRUISE. VI (N404QX) - [SDR 2020FA0000335](https://openairdocs.org/sdr/2020FA0000335), Jul 15, 2020: Cessna T210M. NOT REPORTED. CORRODED. EXTREME CORROSION FOUND ON PARTS INSIDE PROP HUB POST OVERHAUL WITH LESS THAN 40 HOURS FROM OVERHAUL. OPERATOR SUSPECTS (N68BM) - [SDR 2020FA0000200](https://openairdocs.org/sdr/2020FA0000200), Mar 11, 2020: Piper PA24. PROPELLER. DEPARTED. AFTER THE RUNUP AND TAKEOFF CHECKLIST COMPLETE, I ACCELERATED TO ALMOST ROTATION SPEED WHEN I HEARD A LOUD BANG. I IMMED (N6768P) - [SDR 2020FA0000096](https://openairdocs.org/sdr/2020FA0000096), Mar 27, 2019: FORK. CRACKED. SEVERAL CRACKS FOUND IN CAM SLOTS DURING MAGNETIC PARTICLE INSPECTION. - [SDR LR7A2019012201475](https://openairdocs.org/sdr/LR7A2019012201475), Jan 22, 2019: Lkheed 382G. NOT REPORTED. LEAKING. DURING FERRY FLIGHT WHILE ON CLIMB OUT NR 2 ENGINE WAS SHUT DOWN FOR LOW PROP OIL LIGHT. FIVE MINUTES LATER NR 3 ENGINE (N402LC) - [SDR QXEA2018092800350](https://openairdocs.org/sdr/QXEA2018092800350), Sep 26, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. ON CLIMBOUT THROUGH 5000 FEET EXPERIENCED SIGNIFICANT VIBRATION IN ROUGH PATTERN OF 5-10 SECONDS OF VIBRATION, THEN NOTH (N428QX) - [SDR QXEA2018082800315](https://openairdocs.org/sdr/QXEA2018082800315), Aug 27, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. DURING CRUISE, SLOW AIRSPEED, FIRST NOTICED AT 210 KTS, NOTICEABLE VIBRATION. TRIED PUTTING ANVS ON PAUSE WITH NO CHANGE (N429QX) - [SDR QXEA2018082800314](https://openairdocs.org/sdr/QXEA2018082800314), Aug 25, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. FAIRLY SIGNIFICANT VIBRATION ON THE NR 1 PROPELLER. WHEN POWER LEVERS WERE REDUCED BELOW ABOUT 65%, TORQUE VIBRATION WAS (N429QX) - [SDR QXEA2018082400307](https://openairdocs.org/sdr/QXEA2018082400307), Aug 22, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. SUBSTANTIAL VIBRATION DURING CLIMB OUT. PROPS AT 900 RPM. AIRSPEED BETWEEN 190 - 250 KIAS, LEVELED OFF AT 17,000 FT. NR (N434MK) - [SDR QXEA2018082100300](https://openairdocs.org/sdr/QXEA2018082100300), Aug 21, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. AFTER TAKEOFF, AIRFRAME VIBRATION FELT IN CONTROL YOKE AS WELL AS PILOT SEAT. INTENSITY WAS CYCLICAL FROM LIGHT TO MODER (N435QX) - [SDR QXEA20180813292](https://openairdocs.org/sdr/QXEA20180813292), Aug 9, 2018: Bombdr DHC8402. PROPELLER. CONTAMINATED. NR 1 PROPELLER TIME TO UNFEATHER WAS 50 SECONDS. REMOVED FROM SERVICE. ON GREASE LEVEL CHECK, FOUND GREASE TO BE DARK BR (N446QX) - [SDR QXEA2018071200257](https://openairdocs.org/sdr/QXEA2018071200257), Jul 12, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. NR 1 ENGINE PROP VIBRATION ENROUTE. DIVERTED. LANDING UNEVENTFUL. REMOVED FROM SERVICE. PERFORMED PROPELLER BALANCE ON N (N429QX) - [SDR QXEA2018052900194](https://openairdocs.org/sdr/QXEA2018052900194), May 29, 2018: Bombdr DHC8402. PROPELLER. OUT OF BALANCE. DURING CLIMB, WITH PROPS IN RATING DETENT, NOTICED A VIBRATION. WHEN TORQUE REDUCED TO 65%, VIBRATION ELIMINATED. ANVS W (N400QX) - [SDR LU4R2017102418840](https://openairdocs.org/sdr/LU4R2017102418840), Oct 24, 2017: Cessna 208. BETA RING. DAMAGED. DURING PREFLIGHT, DISCOVERED THAT THE CARBON BLOCK WHICH RIDES IN THE CHANNEL OF THE PROPELLER BETA FEEDBACK COLLAR WAS - [SDR HNAA2017101000345](https://openairdocs.org/sdr/HNAA2017101000345), Oct 6, 2017: Dhav DHC8311. PROPELLER. VIBRATION. MODERATE VIBRATION FROM THE RT PROPELLER. CONSTANT AND WORSENS WITH PROPELLER SPEED CHANGES. R & R THE NR 200 PROPELLER (N336EN) - [SDR JJBA20170324016](https://openairdocs.org/sdr/JJBA20170324016), Mar 24, 2017: Dhav DHC8202. PCU. INOPERATIVE. BOTH PROPELLERS RPM DROPPED FROM 1050-1020 DURING CLIMB WITH POWER AT 90% TORQUE. IN CRUISE SETTING PROPELLER RPM WOULD (N365PH) - [SDR SQPA032020170001](https://openairdocs.org/sdr/SQPA032020170001), Mar 20, 2017: Cessna 340A. PROPELLER. DETACHED. LEFT PROPELLER DEPARTED AIRCRAFT DURING CLIMBOUT. NO PRIOR INDICATION OF PROBLEMS WERE REPORTED BY PILOT (N114BH) - [SDR COEA2016111101983](https://openairdocs.org/sdr/COEA2016111101983), Nov 11, 2016: Cessna 208B. SEAL. LEAKING. FLIGHT 7778, ENROUTE, THE PILOT ENCOUNTERED ENGINE OIL SPRAYING ONTO THE WINDSHIELD. THE PILOT ELECTED TO DIVERT. LANDED (N983FE) - [SDR UD7RP5511](https://openairdocs.org/sdr/UD7RP5511), Oct 4, 2016: THRUST WASHER. FAILED. ONE BLADE THRUST BEARING RACE (WASHER) IS BROKEN AFTER ONLY 8 HOURS TSO. PROP WAS OVERHAULED AND CUSTOMER FURNISHED USED - [SDR 2016FA0000353](https://openairdocs.org/sdr/2016FA0000353), Jul 30, 2016: Dhav DHC2MK1. NUT. DAMAGED. PILOT REPORTED A VIBRATION FROM THE ENGINE OR PROP. ON VISUAL INSPECTION, THE NR 3 PROPELLER BLADE SLIPPAGE INDICATION T (N67667) - [SDR JJBA20151225011](https://openairdocs.org/sdr/JJBA20151225011), Dec 25, 2015: Dhav DHC8311. PROPELLER. MALFUNCTIONED. NUMBER 1 ENG UN-COMMANDED FEATHER ON CLIMB. R & R PROPELLER ASSEMBLY, OPERATIONS CHECK & LEAK CHECK SATISFACTORY. (N857CA) - [SDR 3PSR20151012005](https://openairdocs.org/sdr/3PSR20151012005), Oct 12, 2015: Cessna 340A. BLADE. CRACKED. DURING A BEARING INSPECTION OF BLADE, PN 660713275, SN SF340-132 5019, A 6" CRACK AROUND THE BLADE SHANK WAS NOTED. THIS All 1,590: https://openairdocs.org/jasc/6110/reports.md ## Other codes in chapter 61 - [JASC 6100](https://openairdocs.org/jasc/6100): Propeller System (193 reports) - [JASC 6111](https://openairdocs.org/jasc/6111): Propeller Blade Section (1,724 reports) - [JASC 6112](https://openairdocs.org/jasc/6112): Propeller Deice Boot Section (119 reports) - [JASC 6113](https://openairdocs.org/jasc/6113): Propeller Spinner Section (364 reports) - [JASC 6114](https://openairdocs.org/jasc/6114): Propeller Hub Section (1,249 reports) - [JASC 6120](https://openairdocs.org/jasc/6120): Propeller Controlling System (1,421 reports) - [JASC 6121](https://openairdocs.org/jasc/6121): Propeller Synchronizer Section (37 reports) - [JASC 6122](https://openairdocs.org/jasc/6122): Propeller Governor (708 reports) - [JASC 6123](https://openairdocs.org/jasc/6123): Propeller Feathering/Reversing (919 reports) - [JASC 6130](https://openairdocs.org/jasc/6130): Propeller Braking (22 reports) - [JASC 6140](https://openairdocs.org/jasc/6140): Propeller Indication System (292 reports) - [JASC 6197](https://openairdocs.org/jasc/6197): Propeller/Propulsor System Wiring (99 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.