# NTSB investigations, AZ: Loss of engine power(partial) - nonmechanical NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. ## Latest cases - [NTSB LAX08LA005](https://openairdocs.org/ntsb/LAX08LA005.md): Cessna 150D · Strawberry, AZ · Accident · No injuries · Limited investigation · Final report · Oct 6, 2007 · N4570U · Substantial damage > The loss of engine power for an undetermined reason. - [NTSB LAX06CA152](https://openairdocs.org/ntsb/LAX06CA152.md): Piper PA-44-180 · Phoenix, AZ · Accident · No injuries · Data collection · Final report · Apr 30, 2006 · N449PA · Substantial damage > the failure of both pilots to maintain Vmc and directional control during a go-around. Also causal was an inoperative engine caused by flight instructor's failure to ensure that the fuel system was correctly configured for two engine operation by moving the… - [NTSB LAX05TA226](https://openairdocs.org/ntsb/LAX05TA226.md): Ayres S2R-G10 · Wickenburg, AZ · Accident · Minor injuries · Final report · Jul 7, 2005 · N440AT · Substantial damage > the partial loss of engine power for undetermined reasons. - [NTSB LAX05LA120](https://openairdocs.org/ntsb/LAX05LA120.md): Cessna T210N · Carefree, AZ · Accident · Serious injuries · Limited investigation · Final report · Mar 22, 2005 · N6897N · Substantial damage > the pilot's improper use of the fuel boost pump contrary to the procedures specified in the pilot owner handbook and other documents. - [NTSB LAX04LA328](https://openairdocs.org/ntsb/LAX04LA328.md): Cessna 210B · Flagstaff, AZ · Accident · Minor injuries · Limited investigation · Final report · Sep 22, 2004 · N9757X · Substantial damage > the pilot's improper leaning procedures and delayed decision to abort the takeoff when it became obvious that the engine was not developing full power. A factor in the accident was the pilot's decision to use a runway with a quartering tailwind. - [NTSB LAX04LA322](https://openairdocs.org/ntsb/LAX04LA322.md): Wolf Glassair IIS · Mesa, AZ · Accident · 2 fatal · Limited investigation · Final report · Sep 18, 2004 · N110UX · Destroyed > a partial loss of power for undetermined reasons, and, the failure of the pilot to maintain an adequate airspeed while maneuvering for a forced landing that resulted in a stall and a collision with terrain. - [NTSB LAX04TA161](https://openairdocs.org/ntsb/LAX04TA161.md): WSK PZL Mielec M-18A · Safford, AZ · Accident · 1 fatal · Final report · Mar 16, 2004 · N6259N · Destroyed > A loss of engine power due to fuel starvation and at least one ensuing engine power surge, which caused the airplane to pitch up abruptly into a stall at an altitude too low for recovery. Contributing to the accident were the pilot's mismanagement of the fuel… - [NTSB LAX03LA235](https://openairdocs.org/ntsb/LAX03LA235.md): Robinson R44 · Happy Jack, AZ · Accident · No injuries · Limited investigation · Final report · Jul 17, 2003 · N8329B · Substantial damage > the partial loss of engine power due to an excessively lean mixture for undetermined reasons during cruise flight. - [NTSB LAX03LA209](https://openairdocs.org/ntsb/LAX03LA209.md): Davis LG2H · Salome, AZ · Accident · Serious injuries · Limited investigation · Final report · Jun 23, 2003 · N128RD · Substantial damage > The pilot's excessive use of the controls during an aborted takeoff, and his failure to maintain airspeed which resulted in a stall/mush. Factors in the accident include the pilot's lack of familiarity with the airplane and an excessively rich mixture setting… - [NTSB LAX03FA135](https://openairdocs.org/ntsb/LAX03FA135.md): Beech A36 · Sedona, AZ · Accident · 3 fatal · Field investigation · Final report · Apr 13, 2003 · N323D · Destroyed > a partial loss of engine power due to the certified flight instructor's failure to comply with the pilot operating handbook requirements for the mixture setting during takeoff. Also causal was the instructor's inadequate supervision of the flight, failure to… - [NTSB LAX03FA057](https://openairdocs.org/ntsb/LAX03FA057.md): Beech 95 · Tucson, AZ · Accident · 1 fatal · Field investigation · Final report · Jan 1, 2003 · N8212D · Destroyed > a loss power in the right engine due to an excessively rich mixture that was the result of the pilot's failure to secure the priming control prior to takeoff. Also causal was the pilot's failure to follow the single engine procedures specified in the… - [NTSB LAX00LA043](https://openairdocs.org/ntsb/LAX00LA043.md): Piper PA-31-350 · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Dec 11, 1999 · N27181 · Substantial damage > The pilot's failure to follow the manufacturer's published emergency procedures for engine loss of power resulting in a forced landing in an open construction area where the airplane collided with a berm. A related factor was the loss of engine power in the… - [NTSB LAX99FA052](https://openairdocs.org/ntsb/LAX99FA052.md): Parkman VARI-EZE · Tucson, AZ · Accident · 1 fatal · Field investigation · Final report · Dec 18, 1998 · N81EZ · Destroyed > The pilot's failure to attain and maintain an adequate flying airspeed during the aircraft's maiden flight, which resulted in a stall/mush condition. Also causal was the pilot/builder's decision to modify the engine and the fuel system control microchip,… - [NTSB LAX97LA029](https://openairdocs.org/ntsb/LAX97LA029.md): Cessna 310H · Show Low, AZ · Accident · No injuries · Limited investigation · Final report · Oct 31, 1996 · N1039Q · Destroyed > water/ice contamination in the fuel system and/or fuel filters due to failure of the maintenance facility that performed the annual inspection to identify and replace four cracked and deteriorated fuel filler cap O-rings. A factor in this accident was the… - [NTSB LAX95LA286](https://openairdocs.org/ntsb/LAX95LA286.md): Piper PA-23-250 · Overgaard, AZ · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 1995 · N14361 · Substantial damage > the pilot's improper use of the mixture controls, failure to maintain a proper glidepath, failure to maintain an adequate approach airspeed, and failure to maintain directional control of the aircraft. - [NTSB LAX94LA188](https://openairdocs.org/ntsb/LAX94LA188.md): Bell 47G-2 · Willcox, AZ · Accident · No injuries · Limited investigation · Final report · Apr 13, 1994 · N5827U · Substantial damage > Engine power loss due to fuel contamination as a result of inadequate inspection of the fuel and fuel system. - [NTSB LAX94LA074](https://openairdocs.org/ntsb/LAX94LA074.md): Piper PA-23-250 · Showlow, AZ · Accident · Minor injuries · Limited investigation · Final report · Dec 17, 1993 · N8769B · Substantial damage > the pilot's poorly planned approach, improper emergency procedures, and his failure to feather the propeller. The inoperative fuel selector valve was a factor in this accident. - [NTSB LAX94LA021](https://openairdocs.org/ntsb/LAX94LA021.md): Beech 76 · Scottsdale, AZ · Accident · No injuries · Limited investigation · Final report · Oct 22, 1993 · N5148M · Substantial damage > the flight instructor's failure to adequately supervise the flight, follow proper procedures/directives regarding leaning and clearing the idling engine, and his delay in applying power to the idling engine. The fouled spark plugs were a factor in this… - [NTSB LAX94LA015](https://openairdocs.org/ntsb/LAX94LA015.md): Taylorcraft BC12-D · Yuma, AZ · Accident · 1 fatal · Limited investigation · Final report · Oct 16, 1993 · N94981 · Destroyed > a failure of the pilot-in-command to maintain adequate airspeed and subsequent inadvertent stall while maneuvering the airplane. Contamination of the fuel in the carburetor that produced a partial power loss was a factor in the accident. - [NTSB LAX94LA001](https://openairdocs.org/ntsb/LAX94LA001.md): Cessna O-2A · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Oct 1, 1993 · N5151A · Substantial damage > was the partial loss of engine power during initial climb due to partial clogging of the engine's fuel injectors. Blockage of the fuel injectors was due to inadequate maintenance of the fuel system by contract maintenance personnel. - [NTSB LAX93FA103](https://openairdocs.org/ntsb/LAX93FA103.md): Piper PA-23-150 · Eloy, AZ · Accident · Serious injuries · Field investigation · Final report · Jan 25, 1993 · N2144P · Destroyed > Partial loss of engine power due to fuel system contamination and a partially obstructed carburetor venturi, and the pilot's failure to maintain control of the airplane. A factor in the accident was the pilot's inadequate preflight inspection. - [NTSB LAX93LA006](https://openairdocs.org/ntsb/LAX93LA006.md): Cessna 152 · Quartzsite, AZ · Accident · No injuries · Limited investigation · Final report · Oct 9, 1992 · N150G · Substantial damage > Engine failure for an undetermined reason. Contributing to this accident was the rough/uneven terrain. - [NTSB LAX92LA278](https://openairdocs.org/ntsb/LAX92LA278.md): Bell 47G5 · Mesa, AZ · Accident · Minor injuries · Limited investigation · Final report · Jul 4, 1992 · N4798R · Destroyed > A partial loss of engine power due to unknown reason (s). Factors in this accident were 1) low altitude when the partial loss of power occurred 2) low rotor RPM as a result of the loss of power, and 3) the pilot not being able to take remedial action due to… - [NTSB LAX92LA234](https://openairdocs.org/ntsb/LAX92LA234.md): Jacanin Great Lakes · Gila Bend, AZ · Accident · Serious injuries · Limited investigation · Final report · Jun 4, 1992 · N4045 · Destroyed > Fuel starvation due to the pilot's failure to properly position the fuel selector in the full 'on' setting. A factor in the accident was the design of the fuel selector valve and the location of the temporary radio installation which limited the pilot's view… - [NTSB LAX91LA263](https://openairdocs.org/ntsb/LAX91LA263.md): Cessna 152 · Fountain Hills, AZ · Accident · No injuries · Limited investigation · Final report · Jun 15, 1991 · N49627 · Substantial damage > The failure of the student pilot and instructor pilot to correctly configure the aircraft for the attempted go around. Contributing to the accident was the improper supervision of the flight by the flight instructor. - [NTSB LAX89LA323](https://openairdocs.org/ntsb/LAX89LA323.md): Cessna 177RG · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Sep 26, 1989 · N52665 · Substantial damage > A loss of engine power due to the pilot's improper use of the aircraft's powerplant controls. A contributing factor was the pilot's limited experience in a Cessna 177RG. - [NTSB LAX89LA151](https://openairdocs.org/ntsb/LAX89LA151.md): Mooney M20F · Prescott, AZ · Accident · No injuries · Limited investigation · Final report · Apr 8, 1989 · N9705M · Substantial damage > The failure of the plt to lean the fuel mixture for the high density altitude. Contributing to the accident was the cfi's lack of familiarity with the airplane and engine operating procedures. - [NTSB LAX87LA141](https://openairdocs.org/ntsb/LAX87LA141.md): Piper PA-23-250 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Mar 12, 1987 · N62750 · Substantial damage > While clbg fm a go-arnd at abt 400' AGL, the instructor (CFI) shut dwn the l eng by closing the mixture & the student (pvt plt) feathered the left prop. The CFI then moved the prop ctl out of the feather psn, but the prop rmnd feathered. The CFI was unable to… - [NTSB LAX86LA129](https://openairdocs.org/ntsb/LAX86LA129.md): Cessna 172M · Springerville, AZ · Accident · No injuries · Limited investigation · Final report · Feb 27, 1986 · N61572 · Substantial damage > A Cessna 172M experienced a loss of power and collided with rough terrain on landing. The pilot indicated he was cruising at 9500 feet MSL (1500 to 2000 feet AGL) with an OAT of 40 degrees fahrenheit. The carb heat handle was in the 'off' position when the… - [NTSB LAX86LA029](https://openairdocs.org/ntsb/LAX86LA029.md): Schweizer G-164B · Gila Bend, AZ · Accident · Serious injuries · Limited investigation · Final report · Oct 28, 1985 · N8487K · Substantial damage > After spraying a field and while enroute to the landing site, the acft engine backfired followed by a rapid loss of power. The plt negotiated an emergency landing on a private dirt road. During the landing roll-out, the aircraft left wing struck a tree… - [NTSB LAX85LA246](https://openairdocs.org/ntsb/LAX85LA246.md): Cessna 172H · Bullhead City, AZ · Accident · Minor injuries · Limited investigation · Final report · May 7, 1985 · N8188L · Substantial damage > The plt reported that while he was flying & looking for 'wild animals at the base of the mountain' the acft's eng lost power. The acft descended & when it was close to the ground eng power was reacquired. The plt further reported that there was 'severe'… - [NTSB LAX85LA235](https://openairdocs.org/ntsb/LAX85LA235.md): Lockheed PV-2 · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · May 1, 1985 · N7415C · Substantial damage > Following a dural engine chang, the plt test flew the acft. On initial climb, at about 500 ft AGL, both engines began backfiring violently & lost power. According to the plt, power sufficient for flt could not be obtained, & a forced ldg was made about 0.75… - [NTSB LAX83LA268](https://openairdocs.org/ntsb/LAX83LA268.md): Piper PA-28RT-201 · Meadview, AZ · Accident · Minor injuries · Limited investigation · Final report · Jun 7, 1983 · N8348Z · Substantial damage > The pilot stated that shortly after takeoff at aprx 100 feet, the engine lost power. He then switched the boost pumps from low to high and the engine momentarily surged before losing power. During the forced landing the landing gear collapsed and the wings… - [NTSB LAX83LUJ06](https://openairdocs.org/ntsb/LAX83LUJ06.md): Frank Turben Aero Sport Scamp · Carefree, AZ · Accident · No injuries · Final report · Dec 12, 1982 · N37690 · Substantial damage > The pilot flew from glendale to Carefree, AZ. After landing, he refueled and paid for 6.7 gals of gasoline. During takeoff, he encountered a partial loss of power. A turn was made toward lower terrain and to land on a golf course. The aircraft barely cleared… ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1 WHERE c."eventStateOrRegion" = 'AZ' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 354) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=354&state=AZ --- 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.