# Pratt & Whitney R-985-AN-1 - Type: Engine model (FAA registry) - Registry code: 51659 - Manufacturer (registry): P & W - Model: R-985-AN-1 - Engine type: Reciprocating - Power: 450 hp - Installed in: 31 registered aircraft - Page: https://openairdocs.org/engine/pratt-whitney-r-985-an-1 Model codes come from the FAA registry's reference file. ## ADs that may apply (OpenAirDocs) Matched to this engine model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. None matched. ## Registered aircraft (31) - [N106FS](https://openairdocs.org/aircraft/N106FS): [Usda Forest Service](https://openairdocs.org/faa-owner/USDA%20FOREST%20SERVICE), [Boise, ID](https://openairdocs.org/faa-place/ID/Boise), built 1952, S/N 477 - [N10DN](https://openairdocs.org/aircraft/N10DN): [Adams Harry J](https://openairdocs.org/faa-owner/ADAMS%20HARRY%20J), [New Waverly, TX](https://openairdocs.org/faa-place/TX/New%20Waverly), built 1949, S/N 75-5410 - [N10MR](https://openairdocs.org/aircraft/N10MR): [Russell Michael K](https://openairdocs.org/faa-owner/RUSSELL%20MICHAEL%20K), [Sprakers, NY](https://openairdocs.org/faa-place/NY/Sprakers), built 2012, S/N 001 - [N118MH](https://openairdocs.org/aircraft/N118MH): [Currie Jared M](https://openairdocs.org/faa-owner/CURRIE%20JARED%20M), [Kennard, TX](https://openairdocs.org/faa-place/TX/Kennard), S/N 118 - [N127FC](https://openairdocs.org/aircraft/N127FC): [Burghduff Aviation LLC](https://openairdocs.org/faa-owner/BURGHDUFF%20AVIATION%20LLC), [Ludlow, SD](https://openairdocs.org/faa-place/SD/Ludlow), S/N 1393 - [N17GL](https://openairdocs.org/aircraft/N17GL): [International Air Services Inc Trustee](https://openairdocs.org/faa-owner/INTERNATIONAL%20AIR%20SERVICES%20INC%20TRUSTEE), [Carson City, NV](https://openairdocs.org/faa-place/NV/Carson%20City), built 1942, S/N 4885 - [N18285](https://openairdocs.org/aircraft/N18285): [Taylor Douglas D](https://openairdocs.org/faa-owner/TAYLOR%20DOUGLAS%20D), [Backus, MN](https://openairdocs.org/faa-place/MN/Backus), built 1933, S/N 8776 - [N19BB](https://openairdocs.org/aircraft/N19BB): [Bottolene Brian J](https://openairdocs.org/faa-owner/BOTTOLENE%20BRIAN%20J), [Monticello, MN](https://openairdocs.org/faa-place/MN/Monticello), S/N 75-293 - [N27003](https://openairdocs.org/aircraft/N27003): [American Airpower Heritage Fly Museu](https://openairdocs.org/faa-owner/AMERICAN%20AIRPOWER%20HERITAGE%20FLY%20MUSEU), [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas), built 1942, S/N 5017 - [N38953](https://openairdocs.org/aircraft/N38953): [Gold Cap LLC](https://openairdocs.org/faa-owner/GOLD%20CAP%20LLC), [Bremerton, WA](https://openairdocs.org/faa-place/WA/Bremerton), built 1941, S/N 75-2363 - [N450E](https://openairdocs.org/aircraft/N450E): [Shartle Austin W](https://openairdocs.org/faa-owner/SHARTLE%20AUSTIN%20W), [Fredericksburg, PA](https://openairdocs.org/faa-place/PA/Fredericksburg), S/N 75-7378 - [N450KG](https://openairdocs.org/aircraft/N450KG): [Barnett John M](https://openairdocs.org/faa-owner/BARNETT%20JOHN%20M), [Fredericksburg, TX](https://openairdocs.org/faa-place/TX/Fredericksburg), S/N 75-7562 - [N4756T](https://openairdocs.org/aircraft/N4756T): [Ruoss Rolan B](https://openairdocs.org/faa-owner/RUOSS%20ROLAN%20B), [Kodiak, AK](https://openairdocs.org/faa-place/AK/Kodiak), built 1965, S/N 499 - [N53090](https://openairdocs.org/aircraft/N53090): [Forde Lars Erik](https://openairdocs.org/faa-owner/FORDE%20LARS%20ERIK), [Green Lane, PA](https://openairdocs.org/faa-place/PA/Green%20Lane), built 1943, S/N 75-4858 - [N53093](https://openairdocs.org/aircraft/N53093): [General Air Service LLC](https://openairdocs.org/faa-owner/GENERAL%20AIR%20SERVICE%20LLC), [Van Wert, OH](https://openairdocs.org/faa-place/OH/Van%20Wert), built 1942, S/N 75-2891 - [N53181](https://openairdocs.org/aircraft/N53181): [Valiair Limited Company Trustee](https://openairdocs.org/faa-owner/VALIAIR%20LIMITED%20COMPANY%20TRUSTEE), [Casper, WY](https://openairdocs.org/faa-place/WY/Casper), built 1942, S/N 75-3963 - [N56760](https://openairdocs.org/aircraft/N56760): [Murphys Flying Service LLC](https://openairdocs.org/faa-owner/MURPHYS%20FLYING%20SERVICE%20LLC), [Quitman, GA](https://openairdocs.org/faa-place/GA/Quitman), built 1936, S/N 75-017 - [N59223](https://openairdocs.org/aircraft/N59223): [Paramount Overseas Productions Inc](https://openairdocs.org/faa-owner/PARAMOUNT%20OVERSEAS%20PRODUCTIONS%20INC), [Los Angeles, CA](https://openairdocs.org/faa-place/CA/Los%20Angeles), built 1942, S/N 75-2740 - [N613U](https://openairdocs.org/aircraft/N613U): [Larson Lynn Robert](https://openairdocs.org/faa-owner/LARSON%20LYNN%20ROBERT), [Casselton, ND](https://openairdocs.org/faa-place/ND/Casselton), built 1965, S/N 341 - [N62718](https://openairdocs.org/aircraft/N62718): [Crouch Lynn D](https://openairdocs.org/faa-owner/CROUCH%20LYNN%20D), [White House, TN](https://openairdocs.org/faa-place/TN/White%20House), built 1942, S/N 75-4860 - [N64FL](https://openairdocs.org/aircraft/N64FL): [Friedrich Michael J](https://openairdocs.org/faa-owner/FRIEDRICH%20MICHAEL%20J), [Casa Grande, AZ](https://openairdocs.org/faa-place/AZ/Casa%20Grande), built 1940, S/N 64-2207 - [N670AB](https://openairdocs.org/aircraft/N670AB): [Oban Holdings LLC](https://openairdocs.org/faa-owner/OBAN%20HOLDINGS%20LLC), [Deephaven, MN](https://openairdocs.org/faa-place/MN/Deephaven), built 1960, S/N 1428 (1966) - [N67478](https://openairdocs.org/aircraft/N67478): [Bjornstad Paul](https://openairdocs.org/faa-owner/BJORNSTAD%20PAUL), [Genoa, NV](https://openairdocs.org/faa-place/NV/Genoa), built 1942, S/N 562 - [N67957](https://openairdocs.org/aircraft/N67957): [Aerojet Services Inc](https://openairdocs.org/faa-owner/AEROJET%20SERVICES%20INC), [Aurora, CO](https://openairdocs.org/faa-place/CO/Aurora), built 1942, S/N 75-3717 - [N720](https://openairdocs.org/aircraft/N720): [U S Dept Of The Interior](https://openairdocs.org/faa-owner/U%20S%20DEPT%20OF%20THE%20INTERIOR), [Boise, ID](https://openairdocs.org/faa-place/ID/Boise), built 1951, S/N 247 - [N727ST](https://openairdocs.org/aircraft/N727ST): [Edmiston Brandon](https://openairdocs.org/faa-owner/EDMISTON%20BRANDON), [Murray, KY](https://openairdocs.org/faa-place/KY/Murray), built 1944, S/N 1010 - [N8289K](https://openairdocs.org/aircraft/N8289K): [Valley Air Service Limited](https://openairdocs.org/faa-owner/VALLEY%20AIR%20SERVICE%20LIMITED), [Colusa, CA](https://openairdocs.org/faa-place/CA/Colusa), built 1980, S/N 648B - [N936PJ](https://openairdocs.org/aircraft/N936PJ): [Pj Aviation Holding LLC](https://openairdocs.org/faa-owner/PJ%20AVIATION%20HOLDING%20LLC), [Eden Prairie, MN](https://openairdocs.org/faa-place/MN/Eden%20Prairie), built 1942, S/N 752936 - [N9640](https://openairdocs.org/aircraft/N9640): [Harris Robert W](https://openairdocs.org/faa-owner/HARRIS%20ROBERT%20W), [Covington, TN](https://openairdocs.org/faa-place/TN/Covington), built 1974, S/N 1204 - [N9708](https://openairdocs.org/aircraft/N9708): [Horst Aviation LLC](https://openairdocs.org/faa-owner/HORST%20AVIATION%20LLC), [New Holland, PA](https://openairdocs.org/faa-place/PA/New%20Holland), built 1929, S/N 37 - [N985H](https://openairdocs.org/aircraft/N985H): [Grismer Jeff Trustee](https://openairdocs.org/faa-owner/GRISMER%20JEFF%20TRUSTEE), [Hemet, CA](https://openairdocs.org/faa-place/CA/Hemet), built 1941, S/N 75-905 ## NTSB investigations (12) 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 CEN21FA424](https://openairdocs.org/ntsb/CEN21FA424), Sep 17, 2021: Boeing A75 (N19BB), Delta, CO, substantial damage, 1 fatal. Probable cause: The pilot’s loss of control during an aerobatic maneuver, resulting in the airplane impacting terrain. - [NTSB CEN21LA202](https://openairdocs.org/ntsb/CEN21LA202), Apr 26, 2021: Boeing A75 (N56760), Denver, CO, substantial damage. Probable cause: The pilot’s failure to maintain directional control during the landing roll with variable and gusty wind conditions. - [NTSB CEN18LA152](https://openairdocs.org/ntsb/CEN18LA152), Apr 27, 2018: Grumman G 164A (N6637), Garwood, TX, substantial damage. Probable cause: A partial loss of engine power for reasons that could not be determined because postaccident examination of the engine did not reveal any anomalies that would have precluded normal operation. - [NTSB CEN15LA377](https://openairdocs.org/ntsb/CEN15LA377), Aug 12, 2015: Grumman G 164B (N311AL), Sac City, IA, substantial damage. Probable cause: The loss of engine power for reasons that could not be determined based on the available information. - [NTSB CEN11LA563](https://openairdocs.org/ntsb/CEN11LA563), Aug 10, 2011: Grumman Acft ENG Cor-Schweizer G-164A (N127FC), Mansfield, SD, substantial damage. Probable cause: The loss of engine power due to debris in the engine air intake system. - [NTSB ANC07LA094](https://openairdocs.org/ntsb/ANC07LA094), Sep 3, 2007: de Havilland DHC-2 MK1 (N4756T), Kodiak, AK, substantial damage. Probable cause: The pilot's inadequate compensation for wind conditions while water taxiing. A factor contributing to the accident was wind gusts. - [NTSB ATL00LA087](https://openairdocs.org/ntsb/ATL00LA087), Sep 9, 2000: Grumman G164A (N7955), Dillon, SC, substantial damage. Probable cause: A total loss of engine power due to a cracked cylinder head. A factor was the emergency landing into unsuitable terrain, and the subsequent nose over. - [NTSB FTW00LA098](https://openairdocs.org/ntsb/FTW00LA098), Mar 13, 2000: Grumman G-164A (N6637), Garwood, TX, substantial damage. Probable cause: The failure of the left magneto, which resulted in the partial loss of engine power during takeoff. - [NTSB LAX00LA119](https://openairdocs.org/ntsb/LAX00LA119), Mar 7, 2000: Stearman A-75 (N56760), Imperial, CA, substantial damage. Probable cause: The failure of the pilot-in-command to maintain directional control of the aircraft during landing roll. - [NTSB FTW92LA130](https://openairdocs.org/ntsb/FTW92LA130), May 12, 1992: Grumman G-164A (N9640), Fisher, AR, substantial damage. Probable cause: THE LOSS OF COMPLETE ENGINE FOR UNDETERMINED REASONS. A FACTOR WAS THE LOW ALTITUDE AND UNSUITABLE TERRAIN. - [NTSB LAX86LA215](https://openairdocs.org/ntsb/LAX86LA215), May 10, 1986: Boeing A75 (N56760), Angels Camp, CA, destroyed - [NTSB FTW72FPG74](https://openairdocs.org/ntsb/FTW72FPG74), May 16, 1972: Grumman G-164A (N7955), Turrell, AR, substantial damage ## FAA accident and incident reports (21) 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 20210917015839A](https://openairdocs.org/incident/20210917015839A), Sep 17, 2021: Boeing A75 (N19BB), Delta, CO, Substantial damage, 1 fatal. Witnesses noticed the aircraft north east of the airfield doing aerobatic maneuvers. The witnesses stated that the aircraft completed a loop and entered an… - [Accident 20210426007329A](https://openairdocs.org/incident/20210426007329A), Apr 26, 2021: Boeing A75 (N56760), Englewood, CO, Substantial damage. On 04/26/2021, at 1945Z, a Boeing/stearman, N56760, piloted by [privacy data omitted], [privacy data omitted] was involved in an aircraft accident on runway 28… - [Accident 20180427004199A](https://openairdocs.org/incident/20180427004199A), Apr 27, 2018: Grumman G-164A (N6637), Garwood, TX, Destroyed. On 04/27/2018 pilot took off from heiman (private) strip in N6637. After rotation he reported that the aircraft lost power and he was forced to land in a field… - [Accident 20150812015879A](https://openairdocs.org/incident/20150812015879A), Aug 12, 2015: Grumman G-164B (N311AL), Sac City, IA, Destroyed. According to the pilot, he took off from kski and during the climb the aircraft performance deteriorated at approximately 150 AGL. The instruments were reading… - [Accident 20110810023549A](https://openairdocs.org/incident/20110810023549A), Aug 10, 2011: Grumman Acft Eng Cor-Schweizer G-164A (N127FC), Mansfield, SD, Substantial damage. Pilot [privacy data omitted] took off from a private strip near Mansfield, SD. After take off he lost power and put the aircraft down in a soy bean field, the… - [Accident 20080626840429A](https://openairdocs.org/incident/20080626840429A), Jun 26, 2008: Boeing D75N1 (N19BB), Driggs, ID, Substantial damage. (-23) During landing rollout right brake apparently locked and aircraft veered off the right side of runway. There is clearly one skid mark the veers off the… - [Accident 20070903021339A](https://openairdocs.org/incident/20070903021339A), Sep 3, 2007: Dhav DHC2MK1 (N4756T), Kodiak, AK, Substantial damage. (-23) The pilot stated that while landing a float equipped aircraft on a saltwater bay in a semi remote region of Kodiak island in Alaska, the wind in the bay… - [Incident 20070329004019I](https://openairdocs.org/incident/20070329004019I), Mar 29, 2007: Scwzer G164A (N9934), Port Isabel, TX, Minor damage. (-23) Aircraft brakes locked up on landing. Aircraft ended up on its nose with q-tipped props. - [Incident 20060515010669I](https://openairdocs.org/incident/20060515010669I), May 15, 2006: Scwzer G164A (N5354), Garwood, TX, Minor damage. (-23) On taxiing south on a duster strip for take off to the north, pilot failed to properly identify the end of the runway and taxied into a berm and ditch at… - [Accident 20000909015349A](https://openairdocs.org/incident/20000909015349A), Sep 9, 2000: Scwzer G164A (N7955), Dillon, SC, No damage. (-23) At approx. 1000 local time, pilot was spraying cotton field 5 miles west of dillin, SC, when engine made loud hiss and started cutting out. Pilot tried… - [Accident 20000313014479A](https://openairdocs.org/incident/20000313014479A), Mar 13, 2000: Scwzer G164A (N6637), Garwood, TX, Substantial damage. (.4) During the takeoff roll, approximately 3/4 of the way down the length of the runway, the agricultural airplane's engine lost partial power. The pilot… - [Accident 20000307011459A](https://openairdocs.org/incident/20000307011459A), Mar 7, 2000: Boeing A75 (N56760), Imperial, CA, Substantial damage. (-23) Aircraft veered off runway during landing at Imperial County Airport, Imperial, California. The aircraft (equipped with a conventional landing gear)… - [Incident 19970708036229I](https://openairdocs.org/incident/19970708036229I), Jul 8, 1997: Scwzer G164 (N613U), Casselton. Narrative: engine cylinder flew off the engine during spray run. Pilot landed airplane at the next suitable field without any damage to airplane. Airworthiness… - [Incident 19960303006509I](https://openairdocs.org/incident/19960303006509I), Mar 3, 1996: Boeing A75 (N56760), Oakland, CA, Minor damage. Narrative: at approximately 1110 hours PST, on March 3, 1996, N56760, a B-75, landed on runway 9R at Oakland airport. N56760 was cleared to expedite across… - [Accident 19920512014819A](https://openairdocs.org/incident/19920512014819A), May 12, 1992: Scwzer G164A (N9640), Fisher, AR, Substantial damage. Reported power loss on turn around. Nosed over on landing. No engine defects found. - [Incident 19881223066739I](https://openairdocs.org/incident/19881223066739I), Dec 23, 1988: Scwzer G164B (N8289K), Chico, CA, Minor damage. Mistakenly landed parallel to runway. Tried to taxi to lighted runway but wing struck fence and stopped aircraft. - [Incident 19880623068699I](https://openairdocs.org/incident/19880623068699I), Jun 23, 1988: Dhav DHC2MK1 (N4756T), Old Town, ME, Minor damage. Engine caught fire on start up. Engine was flooded and backfired. Destroyed wiring harness. - [Accident 19860510077929A](https://openairdocs.org/incident/19860510077929A), May 10, 1986: Boeing A75 (N56760), Angels Camp, CA, Destroyed. The aircraft struck a powerline and impacted a river. The pilot was operating at a very low altitude. - [Incident 19820802051379I](https://openairdocs.org/incident/19820802051379I), Aug 2, 1982: Scwzer G164A (N5354), Garwood, TX, Minor damage. Engine failed after takeoff. Flipped over on emergency landing. Super charger impeller bearing failure. - [Incident 19781229020709I](https://openairdocs.org/incident/19781229020709I), Dec 29, 1978: Boeing A75 (N56760), Altadena, CA, Minor damage. Power loss due to loss of oil. Scavenge pump drain was held open by foreign matter. - [Incident 19780414012509I](https://openairdocs.org/incident/19780414012509I), Apr 14, 1978: Gulstm G164A (N5375), Spangle, WA, Minor damage. Forced landing made after engine lost power on takeoff. Found blower bearings failed. ## Service difficulty reports (30) As reported by operators and repair stations, by the model named in the report. - [SDR CA151030020](https://openairdocs.org/sdr/CA151030020), Oct 1, 2015: CYLINDER. FAILED. (CAN) DURING INSPECTION FOUND FOUR FAILED STUDS ON NR 3 CYLINDER ASSEMBLY. ALSO CRACK WAS SEEN ON FRONT CRANK CASE ADJACENT TO THE CYLINDER. - [SDR CA150527006](https://openairdocs.org/sdr/CA150527006), May 22, 2015: CONTROL CABLE. FRAYED. (CAN) DURING ITS ANNUAL INSPECTION, THE LT RUDDER CABLE ASSEMBLY WAS FOUND WORN & FRAYED ON THE AFT PULLEY. THE RT RUDDER CABLE WAS FOUND TO BE WORN OUT & FRAYE - [SDR CA141015006](https://openairdocs.org/sdr/CA141015006), Oct 15, 2014: RIB. CRACKED. (CAN) ANNUAL INSPECTION REVEALED CRACKS IN THE MAJORITY OF BOTH THE LH AND RH WING LEADING EDGE NOSE RIBS, CRACKS EMANATE FROM THE AFT PORTION OF THE UPPER AND - [SDR CA141015007](https://openairdocs.org/sdr/CA141015007), Oct 15, 2014: ATTACH ANGLE. LOOSE. (CAN) WHILE CARRYING OUT AN ANNUAL INSPECTION, ALL RIVETS THOUGH THE HORIZONTAL STABILIZER ATTACH ANGLES (LONGERONS) AND DIRECTLY ADJACENT TO ALL FOUR STABILIZE - [SDR CA120917015](https://openairdocs.org/sdr/CA120917015), Jul 29, 2012: CYLINDER. SEPARATED. (CAN) WHILE IN CRUISE PILOT NOTICED VIBRATION. PRECAUTIONARY LANDING CARRIED OUT. ENGINE EXAMINED AND FOUND NR 1 CYLINDER HAD SEPARATED FROM CASE. BROKEN STUDS - [SDR CA100730007](https://openairdocs.org/sdr/CA100730007), Jul 30, 2010: BLADE. SEPARATED. PROPELLER RECEIVED FROM CUSTOMER WITH APPROX 5" OF BLADE MISSING FROM NR2 BLADE TIP (S/N H89522). PROPELLER DISMANTLED, CLEANED, CLAMPS AND HUB SPIDER MPI INSPE - [SDR 2010FA0000208](https://openairdocs.org/sdr/2010FA0000208), Feb 8, 2010: RIB. CRACKED. MOST L/E RIBS CRACKED AT UPPER AND LOWER AFT CORNERS WHERE ATTACHED TO FWD HINGED HALF. 50 PERCENT TO LT WING RIBS WERE CRACKED AS WERE 90 PERCENT OF RT WING RI - [SDR CA090622004](https://openairdocs.org/sdr/CA090622004), Jun 8, 2009: TUBE FRAME. CRACKED. (CAN) SYR INSP REQUREMENT - FOUND LARGE CRACK IN BIRD CAGE TUBULAR STRUCTURE. - [SDR CA080611005](https://openairdocs.org/sdr/CA080611005), Jun 9, 2008: ATTACH BRACKET. WORN. (CAN) DURING ANNUAL INSP WITH AN AOG AIR SUPPORT WING ANGLE INSTALLED MODIFICATION, MOVEMENT WAS FOUND IN THE HORIZONTAL STABILIZER FWD ATTACH POINTS. THE HORIZ - [SDR CA080122008](https://openairdocs.org/sdr/CA080122008), Jan 18, 2008: LINE. OBSTRUCTED. (CAN) WHEN ENG WAS REMOVED FOR O/H, IT WAS DISCOVERED THAT IN THE OIL DELIVERY LINE THERE WAS PLASTIC DEBRIS FROM THE CONTAINERS USED TO REPLENISH THE ENGINE OI - [SDR CA040702002](https://openairdocs.org/sdr/CA040702002), Jun 27, 2004: BELLOWS. FAILED. (CAN) HAVE DETERMINED THAT CARB HEAT BELLOWS P/N C2E2215 AS RECEIVED WAS ACQUIRED DIRECTLY WITHOUT GOING THROUGH QA INSPECTION AND CERTIFICATION. PART BEARS DHC - [SDR CA040427011](https://openairdocs.org/sdr/CA040427011), Jan 12, 2004: SWITCH. OUT OF ADJUST. (CAN) LT MAIN LDG GEAR (DOWN) SWITCH OUT OF ADJUSTMENT CAUSING (NOT LOCKED DOWN) INDICATION. SWITCH READJUSTED, GEAR SWINGS COMPLETED WITH ALL OPERATIONS AND IN - [SDR CA030323001](https://openairdocs.org/sdr/CA030323001), Mar 23, 2003: FLAPPER VALVE. BROKEN. (CAN) BOTH CHECK VALVES WERE REMOVED FROM AIRCRAFT AND DISASSEMBLED.THE CHECK VALVE THAT WAS LOCATED AT THE HAND WOBBLE PUMP IN THE AIRCRAFT WAS FOUND TO HAVE A - [SDR CA021122004](https://openairdocs.org/sdr/CA021122004), Oct 30, 2002: TUBE. CRACKED. (CAN) STRUCTURAL TUBE, 10CM IN LENGTH, FORMING UPPER SUPPORT FOR RT LANDING GEAR SLIDE TUBE FOUND CRACKED DURING PERFORMANCE OF UNRELATED MAINTENANCE. CRACK ORI - [SDR TYW2002F00000](https://openairdocs.org/sdr/TYW2002F00000), Feb 7, 2002: BLADE. FAILED. 11 INCHES SEPRATED FROM ONE PROPELLER BLADE DURING FLIGHT. AIRCRAFT WAS SPRAYING A CROP AND WAS IN A TURN WHEN BLADE TIP SEPARATED. - [SDR AUS20011460](https://openairdocs.org/sdr/AUS20011460), Dec 2, 2001: PROPELLER. FAULTY. (AUS) THE FOLLOWING DEFECTS WERE FOUND ON THE PROPELLER WHEN RECEIVED FOR OVERHAUL:-1. ZERO BEARING TENSION ON BOTH BLADES2. REAR BARREL HALF HAS BEEN DRILLED, - [SDR CA011029015](https://openairdocs.org/sdr/CA011029015), Oct 3, 2001: CYLINDER HEAD. CRACKED. (CAN) CYLINDER HEAD CRACKED. - [SDR 2001FA0000255](https://openairdocs.org/sdr/2001FA0000255), Jul 25, 2001: VALVE SPRING. BROKEN. ENGINE BEGAN BACKFIRING AND POWER DECREASED, AIRCRAFT LANDED AS A RESULT OF RUNNING THROUGH A FENCE. FOUND NR 1 CYLINDER INTAKE VALVE SPRINGS BROKEN. REPLACED S - [SDR CA010713011](https://openairdocs.org/sdr/CA010713011), Jul 4, 2001: BATTERY. WRONG PART. (CAN) DURING BATTERY DUE DATE INSPECTION IT WAS FOUND THAT THE ELT HAD INCORRECT BATTERIES INSTALLED. INSTALLED CORRECT BATTERIES. - [SDR AUS20011146](https://openairdocs.org/sdr/AUS20011146), Jun 9, 2001: HOSE. FAILED. (AUS) RT LANDING GEAR HYDRAULIC HOSE CHAFED INSIDE FLOAT STRUT. HOSE BURST. LOSS OF HYDRAULIC FLUID. AIRCRAFT IS A FLOATPLANE. - [SDR CA001122006](https://openairdocs.org/sdr/CA001122006), Nov 1, 2000: BUSHING. WORN. (CAN) DURING ROUTINE INSPECTION THE RT TOP LIFT STRUT BUSHING WAS FOUND TO BE WORN. THIS CONDITION APPEARS TO BE A WEAK PART IN DESIGN AS WE ARE CONSTANTLY REPA - [SDR 20000925SH021](https://openairdocs.org/sdr/20000925SH021), Sep 25, 2000: SCREW. LOOSE. CARBURETOR FLOAT FULCRUM SCREW WAS FOUND LOOSE ON ANNUAL INSPECTION. BRASS THREADS WERE FOUND WORN. REPLACED FULCRUM SCREW, PROPERLY INSTALLED NEW SCREW AND SAF - [SDR CA000404046](https://openairdocs.org/sdr/CA000404046), Mar 27, 2000: FRAME. BROKEN. (CAN) CLUSTER FOUND BROKEN CLEAR OF ATTACHING BOLT DURING ANNUAL INSPECTION. FRAME SENT OUT FOR REBUILD IN A JIG. - [SDR CA000404001](https://openairdocs.org/sdr/CA000404001), Mar 21, 2000: SHAFT. BROKEN. (CAN) ENGINE WOULD NOT RUN WITHOUT WOBBLE PUMP OPERATING. ENGINE DRIVEN PUMP REMOVED AND QUILL SHAFT FOUND BROKEN. - [SDR 20000925SH023](https://openairdocs.org/sdr/20000925SH023), Sep 1, 1999: SCREW. LOOSE. CARBURETOR FLOAT FULCRUM SCREW VIBRATED LOOSE CAUSING FLOAT TO STICK. AIRCRAFT ENGINE BEGAN RUNNING ROUGH. AIRCRAFT SUCCESSFULLY RETURNED TO FIELD. FULCRUM SCRE - [SDR 20000925SH022](https://openairdocs.org/sdr/20000925SH022), Aug 8, 1999: SCREW. LOOSE. CARBURETOR FLOAT FULCRUM SCREW SAFETY WIRE VIBRATED THROUGH BACKING OUT FULCRUM SCREW FOR FLOAT. ENGINE QUIT RUNNING CAUSING FORCED LANDING. AIRCRAFT SUSTAINED - [SDR CA990209009](https://openairdocs.org/sdr/CA990209009), Jan 28, 1999: BULKHEAD. CRACKED. (CAN) INSPECTION PER CR-98-38 FOUND THE BULKHEAD AND CHANNEL ASSEMBLY CRACKED. - [SDR AU961165](https://openairdocs.org/sdr/AU961165), Jul 30, 1996: PIN. MISMANUFACTURED. (AUS) WING HINGE PINS FAULTY - DEPTH OF THREADED HOLES VARIES BETWEEN 21.463MM AND 21.844MM (0.845IN AND 0.860IN) - MAXIMUM DEPTH OF HOLE IS 21.336MM (0.840IN) - [SDR 96ZZZX3813](https://openairdocs.org/sdr/96ZZZX3813), Jun 10, 1996: CYLINDER. HEAD LEAKAGE. OVER LAST 200 HOURS, CYLINDER HEAD SEPARATED ON 3 CYLINDERS IN FLIGHT OR ON TAKEOFF. THE 4TH CYLINDER HAD STAINS AND LEAKAGE AND REMOVED BEFORE FAILURES, BUT WA - [SDR 95ZZZX2636](https://openairdocs.org/sdr/95ZZZX2636), Apr 27, 1995: PUMP. DEFECTIVE. PILOT REPORTED EXCESSIVE FUEL CONSUMPTION. DETERMINED FUEL PUMP (ENGINE DRIVEN) TO BE DEFECTIVE. REPLACED FUEL PUMP WITH ZERO TSO UNIT. OPS CHECK SATISFACTORY. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. 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