# NTSB investigations: Pratt & Whitney JT8D-9 series: Airframe/component/system failure/malfunction 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 CHI05MA111](https://openairdocs.org/ntsb/CHI05MA111.md): McDonnell Douglas DC-9-51 · Minneapolis, MN · Accident · Serious injuries · Major investigation · Final report · May 11, 2005 · N763NC · 2 aircraft · Substantial damage > the Captain of the other aircraft's decision to shutdown the left engine during taxi with no hydraulic pressure on the right side hydraulic system to effectively operate the brakes, steering, or thrust reversers. A factor was the fatigue fracture of the… - [NTSB LAX00IA127](https://openairdocs.org/ntsb/LAX00IA127.md): Boeing 727-232 · San Francisco, CA · Incident · No injuries · Incident investigation · Final report · Mar 14, 2000 · N516DA · Minor damage > failure of the right main landing gear to fully extend for undetermined reasons. - [NTSB CHI00IA087](https://openairdocs.org/ntsb/CHI00IA087.md): McDonnell Douglas DC9-32 · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Jan 31, 2000 · N203ME · Minor damage > the chafing of the internal water heater wire. A factor was the missing ground strap. - [NTSB CHI00IA009](https://openairdocs.org/ntsb/CHI00IA009.md): McDonnell Douglas DC-9-51 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Oct 14, 1999 · N766NC · No damage > The landing gear's wheel separation due to the improper installation of the wheel by company maintenance personnel using incomplete maintenance steps, and the maintenance steps not listed in the manufacturer's manual. Factors were the airport perimeter wall… - [NTSB DCA97IA030](https://openairdocs.org/ntsb/DCA97IA030.md): Boeing 727F · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Mar 3, 1997 · N465FE · Minor damage > A jammed elevator resulting from a backed-off elevator trim tab nut. - [NTSB LAX95IA229](https://openairdocs.org/ntsb/LAX95IA229.md): Boeing 737-200 · Elko, NV · Incident · No injuries · Incident investigation · Final report · Jun 29, 1995 · N457TM · Minor damage > in-flight separation of the aileron as a result of inadequate bonding. - [NTSB LAX94IA206](https://openairdocs.org/ntsb/LAX94IA206.md): Boeing 737-209 · Honolulu, HI · Incident · Minor injuries · Incident investigation · Final report · Apr 27, 1994 · N804AL · No damage > The failure of the battery transfer relay resulting in multiple system failures. - [NTSB NYC92LA076](https://openairdocs.org/ntsb/NYC92LA076.md): Mcdonnell Douglas DC-9-32 · Dayton, OH · Accident · 1 fatal · Limited investigation · Final report · Apr 9, 1992 · N926L · Minor damage > A failed wheel rim following an inadvertent over inflation by the mechanic. Additional causes were the failure of the mechanic to be aware of the pressure being used and his failure to follow procedures. A factor related to the accident was the failure of the… - [NTSB DEN90IA189](https://openairdocs.org/ntsb/DEN90IA189.md): Boeing 737-222 · Denver, CO · Incident · Minor injuries · Incident investigation · Final report · Sep 19, 1990 · N9044U · No damage > The failure of the flight crew to follow emergency procedures/directives. Factors were the failure of the aircraft electrical system (relays) and the failure of the company to provide a jetway operator. - [NTSB SEA90IA161](https://openairdocs.org/ntsb/SEA90IA161.md): Boeing 727-224 · Belgrade, MT · Incident · No injuries · Incident investigation · Final report · Aug 12, 1990 · N69735 · Minor damage > The malfunction of the starter control valve. - [NTSB DCA89MA035](https://openairdocs.org/ntsb/DCA89MA035.md): McDonnell Douglas DC-9-33F · Saginaw, TX · Accident · 2 fatal · Class 1 · Major · Final report · Mar 18, 1989 · N931F · Destroyed > The loss of control of the airplane for undetermined reasons following the inflight opening of the improperly latched cargo door. Contributing to the accident were: inadequate procedures used by evergreen airlines and approved by the FAA for preflight… - [NTSB FTW89IA067](https://openairdocs.org/ntsb/FTW89IA067.md): Boeing 727-232 · Greenville, TX · Incident · Minor injuries · Incident investigation · Final report · Mar 14, 1989 · N511DA · No damage > False fire warning, which resulted from (1) contaminants on hardware at one end of the fire detection loop; and (2) an electrical short on both elements of the loop. - [NTSB CHI89MA046](https://openairdocs.org/ntsb/CHI89MA046.md): Boeing 737-201 · Chicago, IL · Accident · No injuries · Major investigation · Final report · Jan 20, 1989 · N242US · Substantial damage > Previous damage to the aft cone (engine mounting) bolt, which resulted in mismatched surfaces between the bolt and isolation mount, loss of torque during cyclic loading of the mounting bolt, and subsequent fatigue failure of the bolt. - [NTSB SEA88IA065](https://openairdocs.org/ntsb/SEA88IA065.md): Boeing 727-232 · Portland, OR · Incident · No injuries · Incident investigation · Final report · Mar 21, 1988 · N515DA · Minor damage > Crew was unable to lower the left main lndg gear. Crew then executed an emergency landing on the right main and nose gear with minor damage to the acft. The investigation revealed that the left main gear door attach fitting had a fatigue fracture. - [NTSB FTW88IA037](https://openairdocs.org/ntsb/FTW88IA037.md): Boeing 727-243 · Houston, TX · Incident · No injuries · Incident investigation · Final report · Dec 3, 1987 · N571PE · Minor damage > Improper drilling of the cross hole in the slat track bearing bolt, which led to its failure from fatigue cracking. - [NTSB MIA84IA242](https://openairdocs.org/ntsb/MIA84IA242.md): Mcdonnell Douglas DC-9-51 · Orlando, FL · Incident · No injuries · Incident investigation · Final report · Aug 25, 1984 · N411EA · Minor damage > Just prior to V1 and rotation both left main landing gear tires failed. Takeoff was aborted and acft was stopped on rwy. Pax & crew deplaned without injury. Cause of tire failure could not be determined. - [NTSB CHI84IA314](https://openairdocs.org/ntsb/CHI84IA314.md): Boeing 727-2M7 · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · Jul 25, 1984 · N721RW · No damage > The crew reported that they noticed a decrease in climb rate while over rapid city, SD, en route from msp to sfo at flt level 310. The plt noted fuel burn was aprx 1400 lbs ahead of schedule. In-flt inspection revealed that the inboard trailing edge flaps had… - [NTSB LAX83IA302](https://openairdocs.org/ntsb/LAX83IA302.md): Mcdonnell Douglas DC9-32 · Las Vegas, NV · Incident · Minor injuries · Incident investigation · Final report · Jun 24, 1983 · N942N · Minor damage > During the ground run for takeoff a fatigue precipitated failure of the third stage turbine blade occurred with secondary damage to several guide vanes and the fourth stage turbine wheel. Imbalance of the turbine wheel caused the failure of the number six… ## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52048') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?engine=52048&occurrence=130 --- 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.