# JASC 5302: Rotorcraft Tail Boom - Type: JASC system/component code (FAA) - ATA chapter: 53 Fuselage - Title in the code table: ROTORCRAFT TAIL BOOM - Service difficulty reports: 965 - FAA code table: https://www.faa.gov/sites/faa.gov/files/JASC_Code.pdf#page=47 - Page: https://openairdocs.org/jasc/5302 ## What it covers For reports of the structure including exterior skin and truss framework of tail booms on rotorcraft. Includes attach fittings, etc., for tail boom and stabilizer surfaces. Typical parts are bulkhead, bracket, frame, frame tube, plate, etc. ## Service difficulty reports (965, newest 50) - [SDR 2026FA0000299](https://openairdocs.org/sdr/2026FA0000299), Apr 27, 2026: Agusta AW139. TAIL BOOM. CORRODED. DURING THE PERFORMANCE OF THE GENERAL VISUAL INSPECTION AS SPECIFIED IN THE CONDITIONS OF PSE/TQ/2025/215289 REPAIR DEFE (N485SH) - [SDR 2A6R2026040675204](https://openairdocs.org/sdr/2A6R2026040675204), Mar 16, 2026: Urocop EC130T2. SKIN. CRACKED. DURING AN INSPECTION A CRACK WAS FOUND ON THE TOP OF THE HORIZONAL STABILIZER MEASURING 4.25 IN LONG. THE HORIZONTAL WAS (N813AM) - [SDR 2A6R2026031675203](https://openairdocs.org/sdr/2A6R2026031675203), Mar 16, 2026: Urocop EC130T2. STATOR. CORRODED. DURING A 12-YEAR INSPECTION, THE STATOR WAS REMOVED AND FOUND TO HAVE MULTIPLE LEGS WITH CORRODED BASES. THE DEPTH OF CO (N813AM) - [SDR U0GA VP000639](https://openairdocs.org/sdr/U0GA%20VP000639), Dec 19, 2025: Agusta AW139. TAIL BOOM. CORRODED. THIS AIRCRAFT HAS BEEN GROUNDED AT OUR REPAIR STATION ON VP-000639-2024 SINCE THE DATE OF DISCOVERY. THE REPAIR IS AS FO (N739BG) - [SDR 2026FA0000022](https://openairdocs.org/sdr/2026FA0000022), Nov 19, 2025: Agusta AW139. STABILIZER. CRACKED. REFENCES ARE MADE TO SDR UNIQUE CONTROL #2026FA0000017, #2026FA0000018 AND #2026FA0000020 RAISED PREVIOUSLY. #2026FA0000 (N9YTKB) - [SDR 2026FA0000017](https://openairdocs.org/sdr/2026FA0000017), Nov 19, 2025: Agusta AW139. STABILIZER. CRACKED. DURING A VISUAL INSPECTION OF 9Y-TKB AFTER FLIGHT THE LINE SUPERVISORS DISCOVERED THE CRACK ON THE TAILPLANE ASSEMBLY LE (N41395) - [SDR EVCA20251028001](https://openairdocs.org/sdr/EVCA20251028001), Oct 27, 2025: Bell 206L4. FITTING. INSTALLED. UPPER L/H TAILBOOM ATTACHMENT FITTING CRACKED (N434AE) - [SDR 2A6R1024202574601](https://openairdocs.org/sdr/2A6R1024202574601), Oct 24, 2025: Urocop EC130B4. RAIL. CHAFED. CHAFING DAMAGE WAS FOUND ON THE TAIL BOOM L/H TRDS SUPPORT RAIL/STIFFENER SHEET (P/N: 350A231028.66) JUST FORWARD OF THE (N133HN) - [SDR QMLA2025102720109](https://openairdocs.org/sdr/QMLA2025102720109), Oct 20, 2025: Urocop EC130B4. MOUNT. CRACKED. HORIZONTAL STAB RH LOWER MOUNT CRACKED, FELL OFF WHEN REMOVING HORIZONTAL STABILIZER FOR 300 HR INSPECTION. LEVEL 4 REPA (N306LF) - [SDR 2A6R 09222025743](https://openairdocs.org/sdr/2A6R%2009222025743), Sep 22, 2025: Urocop EC130T2. SKIN. CRACKED. DURING THE 600 HOUR / 24 MONTH AIRFRAME INSPECTION, A CRACK WAS FOUND ON THE TAILBOOM SKIN (TAILBOOM P/N: 350A2307150002 (N223SH) - [SDR QMLA2025092220097](https://openairdocs.org/sdr/QMLA2025092220097), Sep 22, 2025: Urocop EC130T2. SKIN. CRACKED. DURING THE 600 HOUR / 24 MONTH AIRFRAME INSPECTION, A CRACK WAS FOUND ON THE TAILBOOM SKIN (TAILBOOM P/N: 350A2307150002 (N223SH) - [SDR EVCA20250502001](https://openairdocs.org/sdr/EVCA20250502001), May 1, 2025: Urocop EC130T2. STRUCTURE. CRACKED. CRACK EXCEEDING THE MANUFACTURES LIMITS IN THE HORIZONTAL STABILIZER (N863LH) - [SDR UIEA2025032500386](https://openairdocs.org/sdr/UIEA2025032500386), Apr 18, 2025: Boeing 74747UF. BULKHEAD. CRACKED. RH BS 1480 B/HEAD VERTICAL WB I/B AREA FOUND CRACK(

VERTICAL WEB CRACK AREA REPAIRED AS PER SRM 53-40-08-2R-1 REPAIR 1 (N493MC) - [SDR QMLA2025010820045](https://openairdocs.org/sdr/QMLA2025010820045), Mar 15, 2025: Bolkms BK117B2. SKIN. CRACKED. DURING INSPECTION FOUND 2 CRACKS IN THE TOP SKIN OF THE TAILBOOM. (N880SL) - [SDR QMLA2025021820019](https://openairdocs.org/sdr/QMLA2025021820019), Feb 18, 2025: Urocop EC130B4. MOUNT BRACKET. CRACKED. FOUND HORIZONTAL STABILIZER UPPER MOUNT BRACKETS CRACKED ON PRE-FLIGHT INSP. (N336AM) - [SDR 2025FA0000061](https://openairdocs.org/sdr/2025FA0000061), Jan 28, 2025: Bolkms BK117C2. SKIN. CRACKED. FUSELAGE – TAIL BOOM - TOP SKIN CRACKED (N602M) - [SDR HDNA202412300324](https://openairdocs.org/sdr/HDNA202412300324), Dec 31, 2024: Bolkms BK117C2. TAIL BOOM. CRACKED. MULTIPLE CRACKS FOUND ON THE 6135 FRAME OF THE TAIL BOOM. (N131LF) - [SDR 2024FA0000955](https://openairdocs.org/sdr/2024FA0000955), Dec 10, 2024: Snias AS350B3. MOUNT. CHAFED. TAIL GEARBOX MOUNTING PLATE CHAFE DAMAGE. (N490H) - [SDR 4DSR202412050001](https://openairdocs.org/sdr/4DSR202412050001), Dec 5, 2024: Snias AS350B3. SUPPORT BRACKET. CORRODED. DURING A SCHEDULED 12YR (144M) INSPECTION OF THE TAIL BOOM SECTION, THE NO. 6 BEARING SUPPORT BRACKET WAS FOUND TO HAVE (N6974A) - [SDR EVCA20241204001](https://openairdocs.org/sdr/EVCA20241204001), Dec 4, 2024: Bell 206L3. STIFFENER. CRACKED. VERTICAL TUNNEL AFT RH STIFFENER CRACKED. VERTICAL TUNNEL SKIN CRACKED AT WL 65.0 (N285AE) - [SDR HEEA202411190001](https://openairdocs.org/sdr/HEEA202411190001), Nov 19, 2024: Bell 407. SUPPORT. LOOSE. T/R GEAR BOX MOUNTING CAN ON AFT END OF TAILBOOM HAS LOOSE FASTENERS. (N412PH) - [SDR SWAA2024121060475](https://openairdocs.org/sdr/SWAA2024121060475), Nov 16, 2024: Boeing 7377H4. SCUFF PLATE. CRACKED. CRACK SCUFF PLATE AFT CORNER AT AFT CARGO COMPARTMENT 2024-715085<[01] TOOL USED DIGITAL CALIPER P/N: 500-197-30 S/N: A2 (N932WN) - [SDR EVCA20241119001](https://openairdocs.org/sdr/EVCA20241119001), Nov 15, 2024: Bell 206L4. SKIN. DAMAGED. BIRD STRIKE WHILE IN CRUISE FLIGHT RETURNING TO BASE. PILOT LANDED IN FIELD NEAR FORUM AR. AMT NOTED DAMAGE TO VERTICAL (N467AE) - [SDR 2A6R2024101872002](https://openairdocs.org/sdr/2A6R2024101872002), Oct 18, 2024: Urocop EC130B4. SKIN. CRACKED. CRACK DAMAGE WAS DISCOVERED ON THE TAIL BOOM LOWER SKIN (PN: 350A23-4288-20) AT THE UPPER AFT AREA OF THE BATTERY DOOR O (N341AM) - [SDR 2024F00249](https://openairdocs.org/sdr/2024F00249), Oct 10, 2024: Bolkms BK117C2. RIB. CRACKED. NOSE RIB 1S FOUND CRACKED ON VERTICAL SECTION OF THE TAIL BOOM. (N602MM) - [SDR FXTA20240926001](https://openairdocs.org/sdr/FXTA20240926001), Sep 24, 2024: Cessna 208B. CAP. CRACKED. CAP ON TOP OF THE VERTICAL THAT BEACON MOUNTS TO CRACKED IN MULTIPLE PLACES ALLOWING THE BEACON TO BECOME LOOSE ON TOP O (N867BA) - [SDR 4DSR202409110001](https://openairdocs.org/sdr/4DSR202409110001), Sep 11, 2024: Snias AS350B3. SKIN PANEL. CRACKED. AIRBUS AS350B3E: DURING A SCHEDULED 12YR INSPECTION, THE TAIL BOOM WAS INSPECTED FOR CRACKS. A CRACK WAS DISCOVERED ON T (N6977A) - [SDR 2A6R2024082971107](https://openairdocs.org/sdr/2A6R2024082971107), Aug 29, 2024: Urocop EC135P2. SKIN. CORRODED. CRACK DAMAGE WAS DISCOVERED ON THE TAIL CONE SKIN (PN: L533M1022262) ON THE RH SIDE. A DETAILED DESCRIPTION OF THE DAMAG (N534LN) - [SDR EVCA202408120001](https://openairdocs.org/sdr/EVCA202408120001), Aug 6, 2024: Bell 206L4. ATTACH FITTING. CRACKED. UPPER LEFT TAILBOOM ATTACHMENT FITTING, TAILBOOM SIDE, CRACKED FROM EDGE TO EDGE ACROSS TWO FWD OUTBOARD RIVETS (N563AE) - [SDR HEEA2024061100443](https://openairdocs.org/sdr/HEEA2024061100443), Jun 11, 2024: Skrsky S92A. PYLON. CORRODED. CORROSION INSIDE HORIZONTAL STABILIZER IN NUMEROUS AREAS ON FITTINGS AND LONGERONS. (N925PH) - [SDR 2024FA0000389](https://openairdocs.org/sdr/2024FA0000389), May 23, 2024: Bolkms BK117C2. TAIL BOOM. CRACKED. MULTIPLE CRACKS/RIVETS FOUND IN TAIL BOOM. CRACK ON THE OMEGA THAT GOES UNDER THE 10L CRACKS AT FASTENERS ON BOTH SIDES (N676LF) - [SDR 2A6D20240425008](https://openairdocs.org/sdr/2A6D20240425008), Apr 25, 2024: Urocop EC130T2. STIFFENER. CORRODED. DAMAGE TO THE TAIL BOOM LH FWD STIFFENER MEASURED TO BE APPROXIMATELY 0.85” X 0.85” X 0.0125” IN THE FORM OF CORROSION. (N11FQ) - [SDR S6GA202404080113](https://openairdocs.org/sdr/S6GA202404080113), Apr 4, 2024: Agusta A109S. SKIN. CRACKED. A CRACK WAS DISCOVERED IN THE TAIL BOOM SKIN JUST AFT OF THE RH ELEVATOR TORQUE TUBE MOUNTING HOLE. APPROXIMATELY 2.5" L (N68NM) - [SDR EVCA20240403244](https://openairdocs.org/sdr/EVCA20240403244), Apr 3, 2024: Bell 206L1. SUPPORT BRACKET. WORN. DRIVESHAFT BEARING SUPPORT MOUNTING HOLE ELONGATED (N101AE) - [SDR QMLA20240402234](https://openairdocs.org/sdr/QMLA20240402234), Apr 1, 2024: Bell 407. BULKHEAD. CRACKED. SUSPECTED BULKHEAD TO BE CRACKED NEAR UPPER RH BOLT HOLE. COULD SEE AN ANOMALY WITH A BORESCOPE, BUT COULD NOT VERIFY TI (N408LL) - [SDR 2A6R2023101366804](https://openairdocs.org/sdr/2A6R2023101366804), Oct 13, 2023: Urocop EC135P1. UNKNOWN. UNKNOWN. DURING A 1000 HOUR INSPECTION, FOUND CRACK ON THE RIGHT SIDE OF THE TAIL CONE SKIN P/N L533M102216. PERFORMING A REPAIR (N135NP) - [SDR 2A6R2023083067903](https://openairdocs.org/sdr/2A6R2023083067903), Aug 30, 2023: Urocop EC130T2. TAIL BOOM. DENTED. DENT DAMAGE TO THE TAIL BOOM UPPER SKIN PANEL (PN: 350A23-0750.20) WAS IDENTIFIED JUST AFT OF THE FUSELAGE-TAIL BOOM JUN (N107VU) - [SDR GVNA2023F00199](https://openairdocs.org/sdr/GVNA2023F00199), Jun 13, 2023: Bolkms BK117C2. SPAR. CRACKED. DURING ROUTINE SCHEDULED INSPECTION FOUND CRACK IN TOP L/H SIDE OF THE VERTICAL FIN MAIN SPAR. (N454MH) - [SDR SWAA2023061952592](https://openairdocs.org/sdr/SWAA2023061952592), May 25, 2023: Boeing 7378H4. INTERCOSTAL. CORRODED. FWD LAV; AFT IB MOUNT AT STA 303.9 LBL 13 HAS CORROSION UNDER NUTPLATE.<[01] REMOVED FWD LAV. AFT I/B MOUNT FITTING AND (N8669B) - [SDR 2NVA2023052501](https://openairdocs.org/sdr/2NVA2023052501), May 21, 2023: Snias AS350B2. TAIL BOOM. DENTED. FOLLOWING A ROUTINE TRAINING FLIGHT, DENTS WERE NOTED AT THE FORWARD END OF THE TAIL BOOM. THE TRAINING FLIGHT INCLUDED (N745RH) - [SDR QMLA2023052620040](https://openairdocs.org/sdr/QMLA2023052620040), May 8, 2023: Bolkms BK117B2. TAIL BOOM. CRACKED. DURING VISUAL INSPECTIONS FOUND A CRACK AT THE 0900 O'CLOCK POSITION ON THE 11L FRAME OF THE TAIL BOOM. DURING DISASSEMB (N880SL) - [SDR 2A6D20230421002](https://openairdocs.org/sdr/2A6D20230421002), Apr 21, 2023: Urocop EC130B4. TAIL BOOM. CHAFED. DAMAGE TO THE TAIL BOOM LH SKIN (P/N: 350A23-4288.20) IN THE FORM OF A CHAFE DUE TO DRILL START LOCATED AT LOWER FORWARD (N259AM) - [SDR EVCA03062023](https://openairdocs.org/sdr/EVCA03062023), Mar 4, 2023: Bell 206L4. ATTACH FITTING. CRACKED. CRACK FOUND IN L/H UPPER ATTACHMENT TAILBOOM FITTING P/N 206-032-409-001P DURING 50 HOUR INSPECTION (N887AE) - [SDR SWAA2023031502023](https://openairdocs.org/sdr/SWAA2023031502023), Feb 11, 2023: Boeing 7377BD. ANGLE. CRACKED. CRACK ANGLE FLOOR STRUCTURE STA 685 PLUS 7 INCH LBL 24.75 WL 208.1 AT PASSENGER CABIN 2023-119348<[01] REPLACED ANGLE LO (N7745A) - [SDR EVCA202301170001](https://openairdocs.org/sdr/EVCA202301170001), Jan 15, 2023: Bell 206L4. TAIL BOOM. CRACKED. 1/2 INCH CRACK AT UPPER LH INBOARD SIDE OF TAILBOOM RING (N424AE) - [SDR EVCA010320233](https://openairdocs.org/sdr/EVCA010320233), Jan 2, 2023: Bell 206L3. RING. CRACKED. 1/2 INCH CRACK AT UPPER LH INBOARD SIDE OF TAILBOOM RING. (N271AE) - [SDR 2A6R2022122803](https://openairdocs.org/sdr/2A6R2022122803), Dec 28, 2022: Urocop EC135P2. TAIL BOOM. CRACKED. DURING 1000-HOUR INSPECTION, A CRACK WAS DISCOVERED ON TAIL CONE UPPER FRAME 7 (PN: L533M1022215) ON THE FLANGE. THE CRA (N253AM) - [SDR EVCA202212090001](https://openairdocs.org/sdr/EVCA202212090001), Dec 8, 2022: Bell 206L4. ATTACH FITTING. CRACKED. CRACK FOUND IN LT UPPER ATTACHMENT TAILBOOM FITTING DURING 100 HOUR INSPECTION. (N164AE) - [SDR EVCA202212010001](https://openairdocs.org/sdr/EVCA202212010001), Nov 30, 2022: Bell 206L1. ATTACH FITTING. CRACKED. DURING COMPLETION OF AD 2013-25-10 INSPECTION FOUND THAT THE UPPER LEFT TAILBOOM ATTACHMENT FITTING WAS CRACKED. (N48AE) - [SDR EVCA20221111001](https://openairdocs.org/sdr/EVCA20221111001), Nov 11, 2022: Bell 206L4. ATTACH FITTING. CRACKED. CRACK FOUND IN L/H UPPER ATTACHMENT TAILBOOM FITTING P/N 206-032-409-001P DURING 100 HOUR INSPECTION (N479AE) All 965: https://openairdocs.org/jasc/5302/reports.md ## Other codes in chapter 53 - [JASC 5300](https://openairdocs.org/jasc/5300): Fuselage Structure (General) (8,203 reports) - [JASC 5301](https://openairdocs.org/jasc/5301): Aerial Tow Equipment (18 reports) - [JASC 5310](https://openairdocs.org/jasc/5310): Fuselage Main, Structure (38,407 reports) - [JASC 5311](https://openairdocs.org/jasc/5311): Fuselage Main, Frame (61,504 reports) - [JASC 5312](https://openairdocs.org/jasc/5312): Fuselage Main, Bulkhead (20,041 reports) - [JASC 5313](https://openairdocs.org/jasc/5313): Fuselage Main, Longeron/Stringer (36,267 reports) - [JASC 5314](https://openairdocs.org/jasc/5314): Fuselage Main, Keel (2,917 reports) - [JASC 5315](https://openairdocs.org/jasc/5315): Fuselage Main, Floor Beam (44,152 reports) - [JASC 5320](https://openairdocs.org/jasc/5320): Fuselage Miscellaneous Structure (215,699 reports) - [JASC 5321](https://openairdocs.org/jasc/5321): Fuselage Floor Panel (49,299 reports) - [JASC 5322](https://openairdocs.org/jasc/5322): Fuselage Internal Mounting Structure (12,746 reports) - [JASC 5323](https://openairdocs.org/jasc/5323): Fuselage Internal Stairs (98 reports) - [JASC 5324](https://openairdocs.org/jasc/5324): Fuselage Fixed Partitions (40 reports) - [JASC 5330](https://openairdocs.org/jasc/5330): Fuselage Main, Plate/Skin (79,225 reports) - [JASC 5340](https://openairdocs.org/jasc/5340): Fuselage Main, Attach Fittings (22,382 reports) - [JASC 5341](https://openairdocs.org/jasc/5341): Fuselage, Wing Attach Fittings (489 reports) - [JASC 5342](https://openairdocs.org/jasc/5342): Fuselage, Stabilizer Attach Fittings (573 reports) - [JASC 5343](https://openairdocs.org/jasc/5343): Fuselage, Landing Gear Attach Fittings (1,946 reports) - [JASC 5344](https://openairdocs.org/jasc/5344): Fuselage, Door Hinge (2,418 reports) - [JASC 5345](https://openairdocs.org/jasc/5345): Fuselage, Equipment Attach Fittings (813 reports) - [JASC 5346](https://openairdocs.org/jasc/5346): Fuselage, Powerplant Attach Fittings (921 reports) - [JASC 5347](https://openairdocs.org/jasc/5347): Fuselage, Seat/Cargo Attach Fittings (66,268 reports) - [JASC 5350](https://openairdocs.org/jasc/5350): Aerodynamic Fairings (6,107 reports) - [JASC 5397](https://openairdocs.org/jasc/5397): Fuselage Main, Bulkhead Fuselage wiring (67 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.