# Lillquist Brien UH-1H - Type: Aircraft model (FAA registry) - Registry code: 056244L - Manufacturer (registry): LILLQUIST BRIEN - Model: UH-1H - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 1 ยท Turbo-shaft - Seats: 2 - Weight class: Up to 12,499 lb - Certification: Not type certificated - Registered aircraft: 0 - Page: https://openairdocs.org/model/lillquist-brien-uh-1h Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft None registered with this model now. ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports None matched to aircraft with this model. ## Service difficulty reports (93, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 2020FA0000296](https://openairdocs.org/sdr/2020FA0000296), Feb 12, 2020: PIN. DISLODGED. PRIMARY CAUSE OF DAMAGE TO ACCESSORY DRIVE, PIN CAME OUT OF SLEEVE BUSHING AND DAMAGED ADJOINING COMPONENTS. ENGINE IS STILL UNDER TEARDOWN AND INSPECTION. - [SDR 2018FA0000537](https://openairdocs.org/sdr/2018FA0000537), Jul 24, 2018: SUPPORT. INFLT SEPARATION. THE SWASHPLATE SUPPORT FAILED AT 1916 HOURS IN SERVICE, PRIOR TO ITS SCHEDULED RETIREMENT LIFE OF 3600 HOURS, FOR UNKNOWN REASONS. TOTAL TIME TRACKING ERRORS WE - [SDR 2018FA0000193](https://openairdocs.org/sdr/2018FA0000193), Jun 20, 2018: QUILL. DISCONNECTED. AIRCRAFT EXPERIENCED A LOSS OF TAIL ROTOR CONTROL DURING FLIGHT REQUIRING THE PILOT TO CONDUCT A HOVERING AUTOROTATION THAT DAMAGED THE LANDING GEAR AND BELLY O - [SDR 2018FA0000086](https://openairdocs.org/sdr/2018FA0000086), Jan 18, 2018: GRIP. CRACKED. LOWER TANG LEADING EDGE HAS A CRACK EXTENDING THRU GRIP TANG TO BLADE BOLT BUSHING. FOUND DURING PREFLIGHT INSPECTION. - [SDR 2017FA0000601](https://openairdocs.org/sdr/2017FA0000601), Jul 25, 2017: LINE. RUPTURED. ONE REPORT DESCRIBING LOSS OF HYDRAULIC FLUID AND SYS PRESSURE. MECHANICS NOTED A HIGH FREQUENCY VIBRATION IN THE HYDRAULIC SYS SPECIFIC TO TUBE WHICH CAN LEAD - [SDR 2017FA0000035](https://openairdocs.org/sdr/2017FA0000035), Jan 27, 2017: BOLT. LOOSE. DURING INSPECTION, FOUND THE ENGINE COMPRESSOR STATOR VANE RETAINING BOLT HANGING OUT OF IT'S RECESSED MOUNT HOLE. ENGINE BLEED BAND WAS PREVENTING BOLT FROM FA - [SDR 2014FA0000320](https://openairdocs.org/sdr/2014FA0000320), May 14, 2014: LONGERON. CRACKED. DURING HOVER, PILOT HEARD A BANG FROM THE REAR OF THE ACFT. PILOT LANDED BACK AT STAGING AREA. DURING INVESTIGATION, DETERMINED THE TAILBOOM JUST AFT OF THE UPP - [SDR 2012FA0000656](https://openairdocs.org/sdr/2012FA0000656), Sep 17, 2012: BLADE. MISINSTALLED. DURING A PHASE 1 INSPECTION, TAIL ROTOR BLADE CLEARANCE FROM VERTICAL STABILIZER WAS INSUFFICIENT AS IT HAD BEEN IMPROPERLY SHIMMED AND INSTALLED ON THE 90 DEGR - [SDR 2012FA0000655](https://openairdocs.org/sdr/2012FA0000655), Sep 17, 2012: SCISSORS. MISINSTALLED. DURING A PHASE 1 INSPECTION, SCISSOR HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE SLEEVE CAUSING DAMAGE TO THE SLEEVE. - [SDR 2012FA0000654](https://openairdocs.org/sdr/2012FA0000654), Sep 17, 2012: GRIP. MISINSTALLED. DURING A PHASE 1 INSPECTION, MAIN ROTOR GRIP HAD BEEN IMPROPERLY ASSEMBLED AND INSTALLED ON THE MAIN ROTOR YOKE CAUSING DAMAGE TO THE NEEDLE BEARING AND RACE. - [SDR 2012FA0000308](https://openairdocs.org/sdr/2012FA0000308), Apr 24, 2012: CAP. BROKEN. CAP BROKEN AT BS 238, LBL 14. - [SDR 2011FA0000657](https://openairdocs.org/sdr/2011FA0000657), Oct 3, 2011: BLADE. CRACKED. PILOT NOTED A VERTICAL VIBRATION DURING FLIGHT. UPON VISUAL INSPECTION, IT WAS FOUND THAT MAIN ROTOR BLADE HAD CRACKED 90 INCHES FROM BLADE TIP THROUGH THE T/E - [SDR 2011FA0000518](https://openairdocs.org/sdr/2011FA0000518), Aug 2, 2011: PINION GEAR. FAILED. GEARBOX WAS O/H AS PART OF AN AIRFRAME REFURBISHMENT PROJECT. THE INPUT QUILL SEAL HAD DEVELOPED AN OIL LEAK AND UPON INVESTIGATION IT WAS FOUND THAT THE INPUT - [SDR 2007FA0000812](https://openairdocs.org/sdr/2007FA0000812), Sep 19, 2007: QUILL ASSY. WORN. QUILL INTERNAL SPLINES WORN AND DAMAGED IN QUILL TUBE CONTACT AREA - [SDR 2006FA0001017](https://openairdocs.org/sdr/2006FA0001017), Oct 20, 2006: SUPPORT BRACKET. LOOSE. TAIL BOOM ELEVATOR SUPPORT BRACKET LOOSE. (WORKING RIVETS/SITE OF PREVIOUS REPAIR WITH PULL TYPE RIVETS). - [SDR 2006FA0000530](https://openairdocs.org/sdr/2006FA0000530), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000529](https://openairdocs.org/sdr/2006FA0000529), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000528](https://openairdocs.org/sdr/2006FA0000528), May 18, 2006: FITTING. CRACKED. TAIL BOOM ATTACH FITTING CRACKED UPPER LEFT [TAIL BOOM SIDE] - [SDR 2006FA0000231](https://openairdocs.org/sdr/2006FA0000231), Feb 27, 2006: FITTING. FRACTURED. AC LANDED FOR SHUTDOWN AFTER OPERATING FOR APPROX 3 FLIGHT HOURS, AC WAS SHAKING DURING SHUTDOWN. DURING POST FLIGHT INSP IT WAS FOUND THAT UPPER LT MOUNT HARD - [SDR ASI200501A](https://openairdocs.org/sdr/ASI200501A), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN P/N 204-012-104-005, S/N DIFS12334 WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND C - [SDR ASI200501](https://openairdocs.org/sdr/ASI200501), Jul 15, 2005: PIN. FAILED. DURING 1200 OVERHAUL OUTBOARD FITTING/STRAP PIN WAS FOUND BROKEN IN HALF. PIN HAD 1085.1 HOURS SINCE NEW. DISCOLORATION AND CONDITION OF BREAK INDICATES THE BRE - [SDR 2005FA0000785](https://openairdocs.org/sdr/2005FA0000785), May 11, 2005: DRIVE SHAFT. VIBRATION. ( 2005-5-1) PILOT NOTICED VIBRATION AND RUMBLE COMING FROM THE MAIN TRANSMISSION AREA ON TAKEOFF. MECHANIC DID TROUBLE TROUBLESHOOTING PROCEDURES AND NOTICED ON - [SDR 2004FA0000333](https://openairdocs.org/sdr/2004FA0000333), Mar 25, 2004: STRAP. CRACKED. AIRCRAFT WAS EXPERIENCING VIBRATIONS DURING FLIGHT, MAINTENANCE WAS UNABLE TO REMOVE THE VIBRATION THROUGH TRACK AND BALANCE PROCEDURES. THE MAIN ROTOR ASSEMBLY - [SDR AGQA088876](https://openairdocs.org/sdr/AGQA088876), Aug 12, 2003: PUMP. BROKEN. PUMP PRODUCING FLUXUATING OIL PRESSURE - [SDR LS12003F00000](https://openairdocs.org/sdr/LS12003F00000), Jun 6, 2003: SKIN. CRACKED. THE TAILBOOM FIRST 2 UPPER SKINS HAD NUMEROUS CRACKS. UNDER NORMAL OPERATIONS THESE CRACKS WOULD NEVER MATERIALIZE. THE AIRCRAFT HAS BEEN DOING LIFTING WORK. MU - [SDR CDFROTW1](https://openairdocs.org/sdr/CDFROTW1), Apr 25, 2003: BATTERY. LEAKING. AT REMOVAL OF ELT BATTERY AT POSTED REMOVAL DATE IT WAS DISCOVERED THE BATTERY PACK HAD LEAKED AND CORRODED COMPONENTS WITHIN THE CASE. THERE WAS ALSO A CRACK N - [SDR AUS20021231](https://openairdocs.org/sdr/AUS20021231), Oct 15, 2002: FITTING. FAULTY. (AUS) TAILBOOM LH LOWER ATTACHMENT FITTING ON FUSELAGE HAD OVERSIZE HOLES ALLOWING THE HILOK' PINS TO LOOSEN. SUSPECT CAUSED BY POOR REPAIR WORK. - [SDR XVI2002F00000](https://openairdocs.org/sdr/XVI2002F00000), Apr 11, 2002: FRAME. CRACKED. X-RAY INSPECTION REVEALED A CRACK IN THE FRAME FLANGE APPROXIMATELY .1250 INCH LONG CONTAINED BY ADJACENT FASTENER HOLE. THE CRACK IS LOCTED IN THE 3 OCLOCK POS - [SDR LS1R074932](https://openairdocs.org/sdr/LS1R074932), Jul 20, 2001: CYLINDER. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R074916](https://openairdocs.org/sdr/LS1R074916), Jul 20, 2001: BATTERY. WEAK. PART IS WEAK. - [SDR LS1R072592](https://openairdocs.org/sdr/LS1R072592), Apr 16, 2001: REGULATOR. OUT OF ADJ. REGULATOR UNABLE TO HOLD ADJUSTMENT. - [SDR LS1R072590](https://openairdocs.org/sdr/LS1R072590), Apr 16, 2001: CONTROL PANEL. INOPERATIVE. LIGHTS WILL NOT COME ON. CONTROL PANEL INOPERATIVE. - [SDR LS1R072190](https://openairdocs.org/sdr/LS1R072190), Apr 10, 2001: CABLE DRUM. STRETCHED. CABLE DRUM STRETCHED. - [SDR LS1R071917](https://openairdocs.org/sdr/LS1R071917), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR LS1R071916](https://openairdocs.org/sdr/LS1R071916), Apr 6, 2001: SHAFT. WORN. PART IS WORN EXCESSIVELY. - [SDR 20010502CW005](https://openairdocs.org/sdr/20010502CW005), Apr 2, 2001: BLADE. CRACKED. A CRACK WAS NOTICED INSIDE DENT AFT OF THE SPAR ON THE TOP OF THE MAIN ROTOR BLADE. REMOVAL OF PAINT DETERMINED THE CRACK TO BE IN EXCESS OF 6 INCHES LONG. THE - [SDR 20001017SH029](https://openairdocs.org/sdr/20001017SH029), Sep 19, 2000: CROSSTUBE. CRACKED. DURING REFUEL, FOUND FORWARD CROSSTUBE AT RIGHT SADDLE CRACKED. POSSIBLE CAUSE, WEAR. (X) - [SDR 20001017SH030](https://openairdocs.org/sdr/20001017SH030), Sep 1, 2000: ANGLE. CRACKED. FOUND ANGLE CRACKED AT LEFT LOWER TAILBOOM MOUNT. POSSIBLE CAUSE IS STRESS TORQUE OF TAILBOOM TO FUSELAGE. (X) - [SDR LS1R066445](https://openairdocs.org/sdr/LS1R066445), Feb 29, 2000: BEARING. ROUGH. BEARING EXTREMELY ROUGH, AND RATCHETY. - [SDR LS1R066421](https://openairdocs.org/sdr/LS1R066421), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066420](https://openairdocs.org/sdr/LS1R066420), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066419](https://openairdocs.org/sdr/LS1R066419), Feb 23, 2000: BEARING. DAMAGED. BEARING SLINGING GREASE. - [SDR LS1R066011](https://openairdocs.org/sdr/LS1R066011), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R066010](https://openairdocs.org/sdr/LS1R066010), Feb 17, 2000: AUDIO PANEL. FAILED. ICS BOX DOES NOT TRANSMIT. - [SDR LS1R065962](https://openairdocs.org/sdr/LS1R065962), Feb 15, 2000: LINEAR ACTUATOR. INOP. LINEAR ACTUATOR IS INOPERATIVE. - [SDR LS1R065943](https://openairdocs.org/sdr/LS1R065943), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR LS1R065941](https://openairdocs.org/sdr/LS1R065941), Feb 11, 2000: CONTROLLER. FAILED. INTERPHONE DOES NOT TRANSMIT. - [SDR LS1R065936](https://openairdocs.org/sdr/LS1R065936), Feb 11, 2000: VOLT REGULATOR. SHORTED. VOLTAGE REGULATOR SHORTED OUT. - [SDR AGQA065942](https://openairdocs.org/sdr/AGQA065942), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE. WILL NOT REGULATE. - [SDR AGQA065935](https://openairdocs.org/sdr/AGQA065935), Feb 11, 2000: VOLT REGULATOR. INOPERATIVE. VOLTAGE REGULATOR INOPERABLE, WILL NOT REGULATE. All 93: https://openairdocs.org/model/lillquist-brien-uh-1h/reports.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Bell UH-1H](https://openairdocs.org/model/bell-uh-1h): 291 registered aircraft, registry code 1181407 - [Garlick Helicopters UH-1H](https://openairdocs.org/model/garlick-helicopters-uh-1h): 7 registered aircraft, registry code 3740005 - [Northwest Rotorcraft UH-1H](https://openairdocs.org/model/northwest-rotorcraft-uh-1h): 6 registered aircraft, registry code 9640002 - [Williams Helicopter UH-1H](https://openairdocs.org/model/williams-helicopter-uh-1h): 6 registered aircraft, registry code 9790870 - [Southwest Florida UH-1H](https://openairdocs.org/model/southwest-florida-uh-1h): 3 registered aircraft, registry code 118141C - [Bell Helicopter UH-1H (205)](https://openairdocs.org/model/bell-helicopter-uh-1h-205): 3 registered aircraft, registry code 1181430 - [Richards Heavylift Helo UH-1H](https://openairdocs.org/model/richards-heavylift-helo-uh-1h): 2 registered aircraft, registry code 118142G - [Arrow Falcon Exporters UH-1H](https://openairdocs.org/model/arrow-falcon-exporters-uh-1h): 2 registered aircraft, registry code 1500001 - [Rotorcraft Development UH-1H](https://openairdocs.org/model/rotorcraft-development-uh-1h): 2 registered aircraft, registry code 3741202 - [Western International Avia UH-1H](https://openairdocs.org/model/western-international-avia-uh-1h): 2 registered aircraft, registry code 9640001 - [Precision Helicopters UH-1H](https://openairdocs.org/model/precision-helicopters-uh-1h): 1 registered aircraft, registry code 1181429 - [Bell/Southern Aero UH-1H](https://openairdocs.org/model/bell-southern-aero-uh-1h): 0 registered aircraft, registry code 118141E --- 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.