# S M & T UH-1B - Type: Aircraft model (FAA registry) - Registry code: 7700000 - Manufacturer (registry): S M & T AIRCRAFT - Model: UH-1B - Aircraft type: Rotorcraft - Category: Rotorcraft - Engines: 2 · Turbo-shaft - Seats: 6 - Weight class: Up to 12,499 lb - Certification: Type certificated - Registered aircraft: 0 - Page: https://openairdocs.org/model/s-m-t-uh-1b 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 (1) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB GAA19CA345](https://openairdocs.org/ntsb/GAA19CA345), Jun 10, 2019: S M & T UH (N64771), Northway, AK, substantial damage. Probable cause: The pilot's failure to maintain a proper descent rate during landing, which resulted in impact with terrain. ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Accident 20190610006589A](https://openairdocs.org/incident/20190610006589A), Jun 10, 2019: S M & T Aircraft UH-1B (N64771), Northway, AK, Substantial damage. Crew was hauling an internal load of fuel at close to gross weight of the helicopter approximately 35 miles north east of Northway Alaska. [privacy data… ## Service difficulty reports (20) As reported by operators and repair stations, by the model named in the report. - [SDR UPX2009F00004](https://openairdocs.org/sdr/UPX2009F00004), May 31, 2009: CONTROL SERVO. LEAKING. ON STARTUP FOR A FLIGHT, MECHANIC NOTICED LARGE PUDDLE OF HYD FLUID UNDER FUSELAGE. CLOSER INSPECTION REVEALED THE LT CYCLIC SERVO WAS LEAKING A LARGE AMOUNT OF - [SDR UPX2009F00003](https://openairdocs.org/sdr/UPX2009F00003), May 31, 2009: SADDLE. CRACKED. ON DAILY INSPECTION, FOUND LT FWD OTBD LANDING GEAR SADDLE CRACKED LONGITUDINALLY AT FILLET AREA. REPLACED SADDLE AND RETURNED TO SERVICE. (K) - [SDR H5O2008F00000](https://openairdocs.org/sdr/H5O2008F00000), Dec 5, 2007: LINER. WORN. PILOT EXPERIENCED COLLECTIVE BOUNCE ON TAKEOFF. INSPECTION OF COLLECTIVE LINERS SHOWED SUFFICIENT AMOUNT OF LINER REMAINING IN THE WEAR AREA. WITH FURTHER INSPE - [SDR 2008FA0000031](https://openairdocs.org/sdr/2008FA0000031), Dec 5, 2007: LINER. WORN. PILOT EXPERIENCED COLLECTIVE BOUNCE ON TAKEOFF. INSPECTION OF COLLECTIVE LINERS SHOWED A SUFFICIENT AMOUNT OF LINER REMAINING IN THE WEAR AREA. WITH FURTHER INS - [SDR H9X2007F00000](https://openairdocs.org/sdr/H9X2007F00000), Dec 1, 2007: HOUSING. DAMAGED. AIRCRAFT WAS RETURNING HOME FROM FLIGHT AND PILOT NOTICED THE PEDALS WERE NOT OPERATING NORMALLY. HE THEN BEGAN CIRCLING THE AIRPORT UNTIL WE DETERMINED THAT TH - [SDR AU000186](https://openairdocs.org/sdr/AU000186), Jan 25, 2000: BLADE. FAILED. (AUS) THIRD STAGE COMPRESSOR DISC AND BLADES DESTROYED. DOWNSTREAM COMPRESSOR DAMAGE. NO DAMAGE TO THE FIRST TWO STAGES. - [SDR 98ZZZX2792](https://openairdocs.org/sdr/98ZZZX2792), Jun 29, 1998: REGULATOR. FAILED. VOLTAGE REGULATOR WILL NOT HOLD VOLTAGE. REMOVED FROM AIRCRAFT AND SENT TO REPAIR. - [SDR 97ZZZX2776](https://openairdocs.org/sdr/97ZZZX2776), May 27, 1997: FIN SPAR. CRACKED. DURING ROUTINE VISUAL INSPECTION WHILE REFUELING, CRACK IN TAILBOOM SPAR CAP WAS DETECTED. MECHANIC STATED NO CRACK WAS NOTED DURING PRE-FLIGHT INDICATING IT FO - [SDR 97ZZZX1991](https://openairdocs.org/sdr/97ZZZX1991), Mar 13, 1997: GRIP. DEFECTIVE. BUSHING FOR PITCH LINK DOES NOT PROTRUDE FLUSH ON BACK SIDE OF GRIP EAR. THEREFORE, SINGLE STEEL WASHER UNDER NUT OF PC LINK BOLT SITS OVER RECESS AND CAN 'DISH - [SDR 97ZZZX1939](https://openairdocs.org/sdr/97ZZZX1939), Mar 13, 1997: BEARING. SPALLED. SPALLING ON BALLS AND OUTER RACE OF BEARING. THIS BEARING IS USED IN SEVERAL DIFFERENT APPLICATIONS IN THE DRIVE TRAIN OF BELL HELICOPTERS. - [SDR GJQR0000098](https://openairdocs.org/sdr/GJQR0000098), Oct 22, 1996: BLADE. DEBONDED. C/W ASB 204-96-48 DUE TO POSSIBILITY OF DEBONDING OF THE MAIN SPAR LEADING EDGE DOUBLER. SEE AD 96-12-26. REPLACED WITH NEW BLADES FROM CSF STOCK. (X) - [SDR GJQR0000097](https://openairdocs.org/sdr/GJQR0000097), Oct 22, 1996: BLADE. DEBONDED. C/W ASB 204-96-48 DUE TO POSSIBILITY OF DEBONDING OF THE MAIN SPAR LEADING EDGE DOUBLER. SEE AD 96-12-26. REPLACED WITH NEW BLADES FROM CSF STOCK. (X) - [SDR UNKN0000096](https://openairdocs.org/sdr/UNKN0000096), Oct 17, 1996: BLADE. CORRODED. PART IS CORRODED. 4TH SET FROM BHT - REORDERED 5TH SET FROM BHT. - [SDR UNKN0000095](https://openairdocs.org/sdr/UNKN0000095), Oct 17, 1996: BLADE. CORRODED. PART IS CORRODED. 4TH SET FROM BHT - REORDERED 5TH SET FROM BHT. - [SDR UNKN0000094](https://openairdocs.org/sdr/UNKN0000094), Oct 16, 1996: BLADE. CORRODED. PART IS CORRODED. 3RD SET FROM BHT - REORDERED 4TH SET FROM BHT. (X) - [SDR UNKN0000093](https://openairdocs.org/sdr/UNKN0000093), Oct 16, 1996: BLADE. CORRODED. PART IS CORRODED. 3RD SET FROM BHT - REORDERED 4TH SET FROM BHT. - [SDR UNKN0000092](https://openairdocs.org/sdr/UNKN0000092), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. 2ND SET FROM BHT - REORDERED 3RD SET FROM BHT. (X) - [SDR UNKN0000091](https://openairdocs.org/sdr/UNKN0000091), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. 2ND SET RECEIVED FORM BHT - REORDERED 3RD SET FROM BHT. (X) - [SDR UNKN0000090](https://openairdocs.org/sdr/UNKN0000090), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. RECEIVED FROM BHT AS IS - REORDERED 2ND SET FROM BHT. (X) - [SDR UNKN0000089](https://openairdocs.org/sdr/UNKN0000089), Oct 10, 1996: BLADE. CORRODED. PART IS CORRODED. REPLACED WITH BLADE FROM BHT. (X) ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Bell UH-1B](https://openairdocs.org/model/bell-uh-1b): 42 registered aircraft, registry code 1181410 - [Garlick Helicopters UH-1B](https://openairdocs.org/model/garlick-helicopters-uh-1b): 3 registered aircraft, registry code 3740001 - [Hawkins & Powers UH-1B](https://openairdocs.org/model/hawkins-powers-uh-1b): 2 registered aircraft, registry code 1280001 - [Bell-Colonial UH-1B](https://openairdocs.org/model/bell-colonial-uh-1b): 1 registered aircraft, registry code 118141A - [Bell-Sw Florida Avn UH-1B](https://openairdocs.org/model/bell-sw-florida-avn-uh-1b): 1 registered aircraft, registry code 118141B - [Williams Helicopter UH-1B](https://openairdocs.org/model/williams-helicopter-uh-1b): 1 registered aircraft, registry code 9790871 - [Bell / Colony Services UH-1B](https://openairdocs.org/model/bell-colony-services-uh-1b): 0 registered aircraft, registry code 118141D - [Richards Heavylift Helo UH-1B](https://openairdocs.org/model/richards-heavylift-helo-uh-1b): 0 registered aircraft, registry code 118141G - [Wilco UH-1B](https://openairdocs.org/model/wilco-uh-1b): 0 registered aircraft, registry code 9680102 --- 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.