# JASC 8530: Reciprocating Engine Cylinder Section - Type: JASC system/component code (FAA) - ATA chapter: 85 Reciprocating Engine - Title in the code table: RECIPROCATING ENGINE CYLINDER SECTION - Service difficulty reports: 4,340 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=71 - Page: https://openairdocs.org/jasc/8530 ## What it covers For reports of engine cylinders and associated parts including the intake pipes and valve push rods/housing. Also includes the cylinder baffles furnished by the engine manufacturer for engine cooling. Does not include the connecting rods or cylinder flange hold down bolts/studs which are in filed JASC code 8520. Typical parts are piston, piston pin, exhaust valve, intake valve, valve guide, rocker arm, valve cover, cylinder, pushrod housing, intake pipe, piston pin plug, valve spring, rocker shaft, piston ring, oil drain lines, clamp, baffles, etc. ## Latest service difficulty reports - [SDR 2026FA0000822](https://openairdocs.org/sdr/2026FA0000822), Oct 2, 2026: CYLINDER, CRACKED (N1096W) - [SDR 8HBR20261010088](https://openairdocs.org/sdr/8HBR20261010088), Sep 30, 2026: CYLINDER HEAD, ROTATED (N46889) - [SDR 2026FA0000796](https://openairdocs.org/sdr/2026FA0000796), Sep 30, 2026: LOCK TAB, MISINSTALLED (N621K) - [SDR VT9R2026092400782](https://openairdocs.org/sdr/VT9R2026092400782), Sep 24, 2026: PUSHROD, GALLED (N925KM) - [SDR 2026FA0000832](https://openairdocs.org/sdr/2026FA0000832), Sep 13, 2026: CLAMP, BROKEN (N340LL) - [SDR HYIA20260917002](https://openairdocs.org/sdr/HYIA20260917002), Sep 10, 2026: CYLINDER, CRACKED (N133CA) - [SDR 2026FA0000672](https://openairdocs.org/sdr/2026FA0000672), Aug 27, 2026: CYLINDER, SEPARATED (N9772H) - [SDR V79R2026090600629](https://openairdocs.org/sdr/V79R2026090600629), Aug 5, 2026: PUSHROD, SCORED (N728TK) - [SDR V79R2026090600628](https://openairdocs.org/sdr/V79R2026090600628), Jul 30, 2026: PUSHROD, SCORED (N925KM) - [SDR 2026FA0000519](https://openairdocs.org/sdr/2026FA0000519), Jun 15, 2026: CYLINDER, CRACKED (N5251Z) - [SDR 2026FA0000508](https://openairdocs.org/sdr/2026FA0000508), Jun 10, 2026: CYLINDER, SEPARATED (N28TN) - [SDR 2026FA0000404](https://openairdocs.org/sdr/2026FA0000404), May 18, 2026: CYLINDER HEAD, SEPARATED (N444AN) - [SDR 2026FA0000422](https://openairdocs.org/sdr/2026FA0000422), May 11, 2026: INTAKE VALVE, BROKEN (N62BV) - [SDR 2026FA0000347](https://openairdocs.org/sdr/2026FA0000347), May 9, 2026: THRUST BUTTON, FAULTY - [SDR 2026FA0000346](https://openairdocs.org/sdr/2026FA0000346), May 9, 2026: THRUST BUTTON, FAULTED - [SDR 2026FA0000345](https://openairdocs.org/sdr/2026FA0000345), May 9, 2026: THRUST BUTTON, MELTED - [SDR 2026FA0000344](https://openairdocs.org/sdr/2026FA0000344), May 9, 2026: THRUST BUTTON, MELTED - [SDR 2026FA0000343](https://openairdocs.org/sdr/2026FA0000343), May 9, 2026: THRUST BUTTON, MELTED - [SDR 2026FA0000342](https://openairdocs.org/sdr/2026FA0000342), May 9, 2026: THRUST BUTTON, MELTED - [SDR HYIA20260508003](https://openairdocs.org/sdr/HYIA20260508003), May 5, 2026: CYLINDER, OIL CONSUMPTION (N915CA) - [SDR HYIA20260430001](https://openairdocs.org/sdr/HYIA20260430001), Apr 27, 2026: CYLINDER, FAILED INSP (N411CA) - [SDR 8HBR20260426083](https://openairdocs.org/sdr/8HBR20260426083), Apr 26, 2026: TAPPET, SEPARATED (N5366M) - [SDR 2026FA0000290](https://openairdocs.org/sdr/2026FA0000290), Apr 23, 2026: BUTTON, MELTED (N9520) - [SDR 2026FA0000279](https://openairdocs.org/sdr/2026FA0000279), Apr 20, 2026: INTAKE VALVE, BROKEN (N452X) - [SDR HYIA20260424003](https://openairdocs.org/sdr/HYIA20260424003), Apr 12, 2026: STUD, BROKEN (N411CA) - [SDR HYIA20260410002](https://openairdocs.org/sdr/HYIA20260410002), Apr 6, 2026: CYLINDER, LOW PRESSURE (N255CA) - [SDR 2026FA0000164](https://openairdocs.org/sdr/2026FA0000164), Mar 10, 2026: CYLINDER HEAD, CRACKED - [SDR 2026FA0000159](https://openairdocs.org/sdr/2026FA0000159), Mar 5, 2026: CYLINDER, CRACKED (N70052) - [SDR HYIA20260327007](https://openairdocs.org/sdr/HYIA20260327007), Feb 26, 2026: EXHAUST VALVE, FAILED (N288CA) - [SDR 2026FA0000142](https://openairdocs.org/sdr/2026FA0000142), Feb 25, 2026: CYLINDER, CRACKED (N267HH) - [SDR HYIA20260327006](https://openairdocs.org/sdr/HYIA20260327006), Feb 17, 2026: CYLINDER, SCORED (N357CA) - [SDR HYIA20260327005](https://openairdocs.org/sdr/HYIA20260327005), Feb 9, 2026: INTAKE VALVE, FAILED (N244CA) - [SDR 2026FA0000138](https://openairdocs.org/sdr/2026FA0000138), Jan 16, 2026: RETAINER, BROKEN (N6862F) - [SDR 2026FA0000623](https://openairdocs.org/sdr/2026FA0000623), Dec 5, 2025: CYLINDER, SCORED (N306VA) - [SDR 2025FA0000780](https://openairdocs.org/sdr/2025FA0000780), Nov 24, 2025: CYLINDER, CRACKED - [SDR 2026F00198](https://openairdocs.org/sdr/2026F00198), Nov 9, 2025: CYLINDER, DAMAGED (N4144E) - [SDR HYIA20260327002](https://openairdocs.org/sdr/HYIA20260327002), Oct 26, 2025: NUT, BROKEN (N699CA) - [SDR 2026FA0000089](https://openairdocs.org/sdr/2026FA0000089), Oct 11, 2025: CYLINDER, FRACTURED (N63079) - [SDR 2025FA0000713](https://openairdocs.org/sdr/2025FA0000713), Oct 10, 2025: EXHAUST VALVE, FAILED (N739DB) - [SDR N3XR20250926001](https://openairdocs.org/sdr/N3XR20250926001), Sep 25, 2025: PISTON, CRACKED (N329ER) - [SDR 2025FA0000663](https://openairdocs.org/sdr/2025FA0000663), Sep 25, 2025: VALVE, FAILED INSP (N3939X) - [SDR 2025FA0000662](https://openairdocs.org/sdr/2025FA0000662), Sep 24, 2025: INTAKE VALVE, DAMAGED (N66919) - [SDR 2026FA0000627](https://openairdocs.org/sdr/2026FA0000627), Sep 12, 2025: PUSHROD, SCORED (N223VA) - [SDR 2025FA0000633](https://openairdocs.org/sdr/2025FA0000633), Sep 9, 2025: CYLINDER HEAD, CRACKED (N99040) - [SDR 2025FA0000641](https://openairdocs.org/sdr/2025FA0000641), Aug 16, 2025: CONNECTING ROD, FAILED (N312AK) - [SDR 2025FA0000589](https://openairdocs.org/sdr/2025FA0000589), Aug 14, 2025: EXHAUST VALVE, DEPARTED (N476SM) - [SDR ECPR2025081833027](https://openairdocs.org/sdr/ECPR2025081833027), Aug 14, 2025: VALVE GUIDE, OUT OF LIMITS (N8578Z) - [SDR ODAR2025080600002](https://openairdocs.org/sdr/ODAR2025080600002), Aug 6, 2025: CYLINDER HEAD, CRACKED (N694CP) - [SDR 2025FA0000531](https://openairdocs.org/sdr/2025FA0000531), Jul 29, 2025: PISTON, DISINTEGRATED (N9628) - [SDR 2025FA0000508](https://openairdocs.org/sdr/2025FA0000508), Jul 8, 2025: EXHAUST ROCKER, SHEARED (N924DA) --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.